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DWK 986704 WHEATON Liquid Scintillation Vials, Caps Attached to Vials, HDPE, Linerless, 22-400, 20 mL

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WHEATON® 986704 HDPE Liquid Scintillation Vials - 20 mL, 22-400 White Linerless Caps Attached, 500/Case

WHEATON® 986704 Liquid Scintillation Vials from DWK Life Sciences are 20 mL white high-density polyethylene (HDPE) laboratory vials supplied with white 22-400 linerless screw caps attached to the vials. This configuration provides a distinct linerless closure option within WHEATON's liquid scintillation vial product family.

DWK specifies a 27 mm outside diameter, a 57 mm vial height without the cap, and a 61 mm overall height including the cap. The 22-400 screw-thread finish is a critical purchasing specification when confirming closure compatibility, counting-instrument fit, and laboratory method requirements.

The vial is manufactured from white HDPE plastic, not borosilicate glass or PET. HDPE is a distinct laboratory container material with its own chemical, thermal, and physical characteristics. Laboratories should verify that white HDPE is compatible with their sample formulation, scintillation cocktail, counting instrument, and approved analytical procedure.

The primary distinguishing feature of WHEATON 986704 is its linerless closure. Unlike WHEATON 986700, which includes a foamed polyethylene liner, or WHEATON 986701, which includes a metal foil/pulp liner, 986704 has no separately specified cap liner. The exact sealing geometry and any numerical seal-performance characteristics have not been established in the reviewed product specifications.

A linerless cap should not be interpreted as automatically leakproof, hermetic, vapor-tight, pressure-resistant, or universally chemical-compatible. The vial neck, cap construction, screw-thread engagement, sample chemistry, and application conditions all influence whether the complete container-closure system is suitable.

Manufacturer documentation note: DWK's current 986704 product page identifies the closure material as polypropylene, while the WHEATON Vial Guide identifies it as polyethylene. The separately sold WHEATON 241317 linerless 22-400 cap is also identified as polyethylene. Because these manufacturer sources disagree, confirm the exact supplied cap-body polymer with DWK before relying on a particular chemical or thermal compatibility rating.

DWK's shared scintillation-vial family description references low background counts and high ultraviolet transmission, but this family includes glass, PET, and HDPE configurations. Those broad statements should not be treated as verified optical-transmission or counting-background performance values for this white HDPE product. Instrument-specific validation is recommended.

The exact WHEATON 986704 product is listed as non-sterile and has no marking spot. Its manufacturer product page does not publish an autoclavability field; however, DWK's general plastics guidance identifies HDPE as not autoclavable. Do not autoclave the assembled product without written manufacturer approval.

Each manufacturer case contains 500 HDPE vials with the specified attached linerless caps. The nominal 20 mL capacity is not a calibrated measuring volume or a universal recommended fill level.

Ordering note: WHEATON 986704 is the 20 mL white HDPE liquid scintillation vial with an attached white 22-400 linerless screw cap, supplied 500 per case. The vial measures 27 mm in diameter and 61 mm high with its cap. It is non-sterile. Confirm the closure polymer if material-specific compatibility is required. Scintillation cocktails, counting instruments, and separate racks or accessories are not included.

Specifications:
  • Manufacturer: DWK Life Sciences
  • Brand: WHEATON®
  • Manufacturer part number: 986704
  • Product type: HDPE liquid scintillation vial with linerless screw cap
  • Nominal capacity: 20 mL
  • Vial material: High-density polyethylene (HDPE)
  • Vial color: White
  • Vial diameter: 27 mm
  • Height without cap: 57 mm
  • Overall height including cap: 61 mm
  • Neck and closure thread: 22-400
  • Cap included: Yes, attached to the vial
  • Cap color: White
  • Cap material: Manufacturer discrepancy - current SKU page lists polypropylene; DWK Vial Guide lists polyethylene
  • Liner material: Linerless; no separate liner specified
  • Marking spot: No
  • Sterility: Non-sterile
  • Exact-SKU autoclavability: Not published on current product page
  • General HDPE autoclavability: DWK identifies HDPE as not autoclavable
  • Purchase unit: Case
  • Quantity per case: 500 vials with attached caps
  • Primary application: Liquid scintillation counting
  • Exact closure sealing geometry: Not confirmed in reviewed SKU documentation
  • Numerical background count: Not specified for exact white HDPE SKU
  • UV transmission percentage: Not specified for exact white HDPE SKU
  • Calibrated capacity tolerance: Not established
  • Certified leakproof or vapor-tight rating: Not established
  • Specific solvent compatibility: Requires complete-assembly qualification
  • Instrument compatibility: Verify with the intended liquid scintillation counter
  • Country of origin: Not verified
  • Shipping weight and carton dimensions: Not verified
  • Inner packaging breakdown: Not confirmed in current exact-SKU manufacturer listing
What Does Linerless Mean?

A linerless screw cap is a closure without a separate removable or inserted liner material. For WHEATON 986704, DWK specifically identifies the liner material as linerless.

This distinguishes 986704 from WHEATON scintillation vials equipped with foamed polyethylene, foil/pulp, foil/cork, polyethylene disc, or polyethylene cone liners. Those other configurations introduce distinct liner materials and sealing interfaces.

A linerless closure does not mean the vial is supplied without a cap. WHEATON 986704 includes its cap attached to the vial. It also does not establish a particular internal cap geometry, leak rate, solvent-vapor barrier, or long-term sample-storage performance.

Selection should be based on the intended laboratory sample, instrument, closure material, application duration, and containment requirements. If a method specifies a PE disc, foam liner, or foil-backed liner, the linerless 986704 configuration is not automatically an acceptable substitute.

Important distinction: Linerless means no separate closure liner is specified. It does not mean liner-free construction is automatically chemically inert, solvent-resistant, or guaranteed leakproof. Confirm cap-polymer identity and application-specific sealing performance before substitution.

Why the White HDPE Vial Material Matters

High-density polyethylene (HDPE) is a laboratory container polymer with properties distinct from PET and borosilicate glass. WHEATON 986704 uses white HDPE, making material and color important considerations for liquid scintillation counting methods.

DWK's general plastics reference provides physical and chemical information to help laboratories compare polymer materials. Those general values are not exact 986704 specifications for purity, solvent resistance, operating temperature, ultraviolet transmission, or radioactive counting background.

WHEATON's corresponding clear borosilicate glass vials typically have a published 28 mm outside diameter, compared with the 27 mm diameter of this HDPE configuration. Laboratories should verify the dimensions and material accepted by their counting instrument.

When evaluating an alternative vial material, consider the entire analytical system rather than assuming that identical capacity or screw-thread size provides equivalent measurement performance.

WHEATON 986704 Features:
  • 20 mL nominal liquid scintillation vial
  • White HDPE vial body
  • 27 mm diameter and 57 mm uncapped height
  • 61 mm overall height with cap
  • 22-400 threaded neck finish
  • White screw cap included and attached to each vial
  • Linerless closure with no separate liner specified
  • Distinct from foam-, foil-, disc-, and cone-lined configurations
  • Manufacturer-designated non-sterile
  • No marking spot
  • 500 vial-and-cap units per case
WHEATON 986704 Benefits:
  • Defined linerless configuration: Supports methods specifying a screw cap without a separate liner.
  • Complete vial-and-cap assembly: The manufacturer supplies the cap attached to the vial.
  • HDPE material option: Provides a white plastic alternative for compatible laboratory methods.
  • Published dimensions: The 27 mm diameter and 61 mm capped height support instrument-fit checks.
  • Exact thread identification: The 22-400 designation helps avoid incorrect closure selection.
  • Easy configuration differentiation: Distinguishes linerless from foamed PE, foil/pulp, foil/cork, and cone-lined versions.
  • Case purchasing: Supplied 500 per case for laboratory replenishment.
Common Applications:
  • Liquid scintillation counting with suitable counting instruments
  • Radiolabeled research samples under approved laboratory procedures
  • Analytical chemistry and laboratory sample preparation
  • Life sciences and biochemical tracer studies
  • Environmental research laboratory workflows
  • Methods specifying a white 20 mL HDPE sample vial
  • Laboratory applications requiring a 22-400 linerless screw cap
  • Compatible sample containment following material and closure qualification

These are potential uses, not certification of suitability for all scintillation cocktails, radionuclides, chemical formulations, counting instruments, or regulated laboratory methods.

Best-Practice Selection and Use:
  • Confirm the exact SKU: Verify WHEATON 986704 and its linerless 22-400 configuration.
  • Inspect the components: Check the HDPE body, vial rim, threads, and cap.
  • Resolve cap-material requirements: Obtain manufacturer confirmation when PE versus PP affects compatibility.
  • Evaluate chemistry: Review the complete sample and scintillation cocktail.
  • Check instrument fit: Verify white HDPE and 27 x 61 mm capped dimensions.
  • Use method-defined working volumes: Do not treat nominal capacity as a calibrated fill level.
  • Apply the closure correctly: Follow the approved laboratory capping and leak-testing procedure.
  • Identify samples: No marking spot is supplied; use suitable labels or barcodes.
  • Perform analytical QC: Use required standards, blanks, background measurements, and quench controls.
  • Observe safety requirements: Follow laboratory solvent, radiological, ventilation, and waste procedures.
  • Do not autoclave without approval: DWK's general plastics guide identifies HDPE as non-autoclavable.
Selection Notes: Related WHEATON Vials
  • 986704: White HDPE, 22-400 linerless cap attached, 500/case.
  • 986700: White HDPE, 22-400 white polypropylene cap with foamed polyethylene liner, 500/case.
  • 986701: White HDPE, 22-400 white polypropylene cap with metal foil/pulp liner, 500/case.
  • 986702: White HDPE, 22-400 white urea cap with metal foil/cork liner, 500/case.
  • 986706: White HDPE, 22-400 white urea cap with polyethylene cone liner, 500/case.
  • 986714: White HDPE, 22-400 linerless cap packed separately, 500/case.
  • 986724: White HDPE, 22-400 linerless cap packed separately, 1,000/case.
  • 986734: PET scintillation vial with 22-400 linerless cap attached, 500/case.
  • 241317: Separately sold white polyethylene 22-400 linerless screw cap, 1,000/case; verify exact replacement suitability with DWK.

Substitution warning: Similar capacity, thread size, or overall dimensions do not establish equivalent cap material, liner construction, vial chemistry, case packing, or counting performance.

Manufacturer Technical Documentation:

DWK Typical Properties of Plastics: Review HDPE, polyethylene, and polypropylene material properties — General temperature, material, and sterilization characteristics; not finished-SKU certification.

DWK Closure Liner Guide: Review screw-thread and closure-selection guidance — Explains matching thread finishes and the importance of application-specific closure testing.

DWK Chemical Resistance of Plastics: Review laboratory plastic chemical-resistance guidance — General material-selection information; actual sample compatibility requires verification.

Why Order WHEATON 986704 From SOSCleanroom?
  • Exact-SKU sourcing: Specify the correct white HDPE vial with linerless attached cap.
  • Closure configuration support: Compare linerless, foamed PE, metal foil/pulp, metal foil/cork, and PE-cone options.
  • Manufacturer specification assistance: Request clarification of the PE versus PP cap-material discrepancy.
  • Technical documentation: Obtain applicable manufacturer information for purchasing and qualification.
  • Centralized purchasing: Source laboratory consumables through Specialty Optical Systems, Inc.
  • Responsive customer service: Contact SOSCleanroom for pricing, availability, and ordering assistance.

Technical note: The Technical Vault provides additional information about linerless closures, HDPE material properties, chemical compatibility, manufacturer cap-material discrepancies, and related WHEATON configurations.

For pricing, availability, or product questions, email Sales@SOSsupply.com or call (214) 340-8574.

Product page updated: October 28, 2026

© 2026 Specialty Optical Systems, Inc. (dba SOSCleanroom). All rights reserved.

The Technical Vault By SOSCleanroom
WHEATON 986704 20 mL White HDPE 22-400 Thread Linerless Cap Caps Attached 27 x 61 mm Capped Non-Sterile 500/Case

WHEATON 986704: Exact-SKU Technical Overview

WHEATON® 986704 from DWK Life Sciences is a 20 mL white high-density polyethylene (HDPE) liquid scintillation vial supplied with an attached white 22-400 linerless screw cap. The manufacturer specifies a 27 mm outside diameter, 57 mm height without cap, and 61 mm overall capped height.

The exact product is designated non-sterile, has no marking spot, and is supplied in cases of 500. Its distinguishing feature is the absence of a separate cap liner, making it different from the foamed-PE, foil/pulp, foil/cork, and PE-cone configurations in the same WHEATON product family.

A significant documentation discrepancy affects the cap-body material. DWK's current 986704 product specification identifies polypropylene, while its WHEATON Vial Guide and related separately sold linerless caps identify polyethylene. The exact supplied cap material should be confirmed with DWK before material-specific qualification.

The product family includes glass, PET, and HDPE scintillation vials. Although DWK's shared description mentions low background counts and high UV transmission, these statements are not numerical specifications for this white HDPE configuration. Instrument suitability must be verified through the intended analytical method.

Operations takeaway: Specify 986704, 20 mL white HDPE, 27 mm diameter, 57 mm uncapped height, 61 mm capped height, 22-400 white linerless cap attached, 500 per case. Do not substitute a lined closure or assume a definitive PP/PE cap resin without manufacturer clarification. The product is non-sterile and should not be autoclaved without written authorization.


Exact-SKU Specifications for Purchasing, SOPs, and Receiving
  • Manufacturer: DWK Life Sciences
  • Brand: WHEATON®
  • Catalog number: 986704
  • Product type: HDPE liquid scintillation vial with linerless cap
  • Nominal capacity: 20 mL
  • Vial material: High-density polyethylene (HDPE)
  • Vial color: White
  • Outside diameter: 27 mm
  • Vial height without cap: 57 mm
  • Overall height including cap: 61 mm
  • Thread finish: 22-400
  • Cap included: Yes, attached to vial
  • Cap color: White
  • Closure material, current DWK SKU page: Polypropylene
  • Closure material, DWK Vial Guide: Polyethylene
  • Closure material status: Manufacturer documentation conflict; confirmation required
  • Liner material: Linerless
  • Separate cap liner: None specified
  • Marking spot: No
  • Sterility: Non-sterile
  • Exact-SKU autoclavability: Not published in current product record
  • General HDPE autoclavability: Not autoclavable, per DWK plastics technical guide
  • Primary application: Liquid scintillation counting
  • Purchase unit: Case
  • Manufacturer case quantity: 500
  • Replacement-cap reference: WHEATON 241317, separately sold 22-400 PE linerless cap; exact matching status requires confirmation
  • Numerical scintillation background: Not established for exact white HDPE SKU
  • UV transmission percentage: Not established for exact white HDPE SKU
  • Calibrated volume tolerance: Not established
  • Specific linerless sealing geometry: Not established
  • Certified leakproof or vapor-tight rating: Not established
  • Numerical cap-tightening torque: Not established
  • Specific chemical compatibility: Requires application qualification
  • Instrument compatibility: Verify with intended scintillation counter
  • Inner packaging quantity: Not confirmed from current exact-SKU manufacturer record
  • Country of origin: Not verified
  • Shipping weight and carton dimensions: Not verified

Specification boundary: The 20 mL capacity is nominal. The 61 mm measurement includes the cap. A 22-400 thread and linerless construction do not independently establish a certified leakproof, vapor-tight, or pressure-resistant seal.


Manufacturer Specification Discrepancy: Polypropylene vs. Polyethylene Cap

The vial material, dimensions, thread finish, linerless construction, cap color, sterility, and case quantity are consistent across the reviewed manufacturer information. However, the cap-body polymer is not consistently identified.

Manufacturer source Cap material identified
Current WHEATON 986704 product specification Polypropylene
DWK WHEATON Vial Guide, 986704 Polyethylene
DWK replacement cap 241317 Polyethylene, linerless, 22-400
Related DWK SKU 986714 Polyethylene, linerless, caps separately packed
Related DWK SKU 986724 Polyethylene, linerless, caps separately packed

This discrepancy may reflect a catalog-data error, specification update, or difference among related configurations. The reviewed information does not establish which explanation applies. It should not be silently resolved by assuming either source is correct.

Procurement recommendation: Request written confirmation from DWK of the current production cap polymer for SKU 986704, including whether 241317 is the intended replacement closure. If exact polymer identity is essential to sample compatibility or a validated method, complete that confirmation before purchasing or approving a substitution.


Linerless Closure: Design Meaning and Sealing Considerations

A linerless screw closure does not contain a separate liner insert such as a polyethylene disc, foamed polyethylene, metal foil/pulp, metal foil/cork, or PTFE-faced liner. For WHEATON 986704, DWK explicitly lists the liner material as linerless.

Because there is no separate liner material specified, the closure body's design and material selection are particularly relevant to chemical contact and sealing performance. The reviewed exact-SKU specification does not describe the detailed internal sealing geometry or quantify its performance.

The term linerless should not be confused with capless. WHEATON 986704 is supplied with caps attached to the vials. The cap is included, but there is no separately specified insert.

Attribute WHEATON 986704
Separate liner insert None specified
Cap included Yes, attached
Thread finish 22-400
Specific cap polymer Conflicting DWK documentation; verify
Detailed internal sealing geometry Not established
Certified leak rate Not established
Vapor-tight rating Not established
Application-specific compatibility Requires testing or manufacturer confirmation

DWK's Closure Liner Guide emphasizes matching screw-thread finishes and qualifying closures for their intended applications. A linerless construction is a different design choice, not evidence that sealing performance is automatically better or worse than a lined cap.

Do not assume: Linerless does not mean PTFE-lined, solvent-proof, leakproof, hermetic, pressure-rated, or suitable for every scintillation cocktail. Test the complete vial-and-cap system where containment performance matters.


Linerless vs. Foamed PE, Metal Foil/Pulp, Foil/Cork, and PE Cone

WHEATON's 20 mL HDPE scintillation vials include several distinct closure designs. Their nominal vial dimensions and 22-400 thread size can be similar, but the cap and liner configurations are different.

SKU Closure Primary distinction
986704 Linerless No separate cap liner; cap material requires confirmation
986700 White PP / foamed PE Compressible foam liner; DWK warns about hydrocarbon solvents
986701 White PP / metal foil-pulp Foil/pulp liner with documented general chemical-resistance characteristics
986702 White urea / metal foil-cork Different cap and liner materials
986706 White urea / PE cone Separate polyethylene cone liner and distinct sealing geometry

The general chemical resistance of a foil-backed or foamed polyethylene liner must not be assigned to a linerless cap. Similarly, a linerless closure should not be represented as equivalent to the wedge-type sealing design of a PE-cone liner.

Selection principle: A method that specifies 986704 linerless is calling for a different configuration from a foam-, foil-, or cone-lined 22-400 cap. Any substitution should be approved based on actual chemical compatibility, analytical performance, and closure requirements.


High-Density Polyethylene: Material Properties and Qualification

High-density polyethylene (HDPE) is a laboratory container polymer with material characteristics distinct from PET, polypropylene, and borosilicate glass. WHEATON 986704 uses a white HDPE body.

DWK's general Typical Properties of Plastics guide provides reference physical, thermal, sterilization, and permeability information for HDPE and other polymers. These tables can assist with preliminary material selection but are not exact-SKU certifications.

When HDPE is used for scintillation samples, the laboratory should evaluate the complete sample matrix and intended storage conditions. The presence of an attached linerless cap introduces an additional requirement to confirm the specific cap polymer.

  • Exact body polymer: HDPE.
  • Exact body color: White.
  • Cap material: Conflicting DWK specifications; verify.
  • General chemical resistance: Polymer-dependent; evaluate specific formulation.
  • Autoclavability: DWK lists HDPE as not autoclavable.
  • Exact optical transmission: Not established for white HDPE 986704.
  • Exact scintillation background: Not numerically established.
  • Lot-specific material certificate: Request when required.

The manufacturer material guide should not be used as proof that this assembled product has a particular operating temperature, pressure tolerance, chemical-resistance classification, or analytical detection performance.


Chemical Compatibility: HDPE Vial and Linerless Cap

For WHEATON 986704, chemical compatibility must be assessed for the HDPE vial body and the linerless cap. Since the specific cap polymer is disputed by manufacturer sources, a complete compatibility conclusion should not be made until that material has been confirmed.

Scintillation cocktails may contain organic solvents, surfactants, solubilizers, and other chemicals. Solvent mixtures can affect polymers differently from individual ingredients. Exposure time, concentration, temperature, and vapor contact must also be considered.

Exposure type Application qualification checkpoint
Water and aqueous standards Confirm sample purity, method suitability, and closure performance
Buffers and salt solutions Evaluate pH, concentration, storage duration, and cap material
Organic scintillation cocktails Review all solvent components against HDPE and verified closure polymer
Hydrocarbon-containing mixtures Do not assume resistance from unrelated foil/pulp or foam-liner information
Alcohol-containing solutions Verify specific alcohol, concentration, exposure duration, and sealing requirements
Acidic and alkaline samples Evaluate polymer compatibility under actual pH and concentration conditions
Volatile organic solvents Assess evaporation, vapor permeability, ventilation, and secondary containment
Trace-sensitive analytical samples Evaluate potential adsorption, extractables, background, and recovery
Cleaning and disinfecting agents Confirm compatibility with both vial and cap materials

This table is a compatibility-review framework, not a manufacturer-certified approved-chemical list for WHEATON 986704. DWK's general plastics guide explains that chemical selection must account for the polymer and the actual mixture.

Chemical qualification warning: The lack of a separate liner does not prove resistance to solvents or protect samples from chemical interaction with the closure. Confirm cap material and assess the entire container-closure system before routine use.


Sterility and Autoclavability: Exact-SKU vs. Material Guidance

DWK explicitly identifies WHEATON 986704 as non-sterile. The exact product specification does not publish an autoclavability field, so a specific finished-product autoclave rating should not be invented.

DWK's separate Typical Properties of Plastics reference identifies HDPE as not autoclavable. The manufacturer also identifies the separately sold WHEATON 241317 polyethylene linerless screw cap as not autoclavable.

These facts support a conservative handling recommendation: do not autoclave the 986704 vial-and-cap assembly without current, written product-specific manufacturer authorization. No validated 986704 sterilization cycle was established in the reviewed information.

Question Manufacturer evidence
Is 986704 supplied sterile? No; exact-SKU designation is non-sterile
Is exact-SKU autoclavability specified? No; the current product page omits the field
Is HDPE generally autoclavable? No, per DWK plastics-properties guide
Is cap 241317 autoclavable? No, per its own manufacturer specification
Does generic sterilization guidance qualify 986704? No; finished assembly requires product-specific validation

Processing warning: Do not assign a 121°C steam cycle, dry-heat processing procedure, or unverified gas/radiation sterilization process to WHEATON 986704. The product is supplied non-sterile and should not be autoclaved.


Liquid Scintillation Counting: White HDPE and Analytical Performance

Liquid scintillation counting (LSC) is an analytical method used to quantify selected radioactive samples. Appropriate samples are combined with a scintillation cocktail, and the resulting light is measured by a suitable counting instrument.

The vial's material, color, geometry, chemical compatibility, and background contribution can affect the method. White HDPE must not automatically be treated as optically equivalent to clear glass or PET.

DWK's shared scintillation-vial family description references consistent low background counts and high UV transmission. That family includes multiple materials. No SKU-specific numerical background count, ultraviolet-transmission spectrum, radionuclide counting efficiency, or detection limit was established for the white HDPE 986704 configuration.

  • Vial material: Confirm the instrument and method accept white HDPE.
  • Counting geometry: Verify dimensions and cap clearance.
  • Background: Use method-defined background measurements and blanks.
  • Counting efficiency: Establish for the particular radionuclide, cocktail, and instrument.
  • Quench: Follow validated quench-correction procedures.
  • Working volume: Use the method's sample/cocktail ratio rather than nominal capacity.
  • Sample containment: Confirm linerless cap compatibility with the formulation.
  • Analytical traceability: Maintain sample, vial, batch, and instrument records as required.

Optical-performance boundary: WHEATON 986704 has no verified SKU-specific high-UV-transmission percentage or numerical low-background guarantee. The product is a sample container, not a calibrated radiation-measurement device.


Dimensions, 22-400 Thread Finish, and Instrument Fit

The manufacturer publishes 27 mm diameter, 57 mm uncapped height, and 61 mm capped height for WHEATON 986704. The vial uses a 22-400 thread, which is distinct from 24-400 configurations.

Specification Practical significance
20 mL capacity Nominal size; not a calibrated fill
27 mm outside diameter Rack, holder, and carousel fit
57 mm uncapped height Vial body measurement
61 mm capped height Full assembly clearance
22-400 finish Match specified screw cap
White HDPE body Confirm counting method accepts this material/color
No marking spot Use appropriate sample labels or barcodes

The related clear borosilicate glass 20 mL vials have a published 28 mm diameter. Matching nominal volume and overall capped height do not guarantee identical instrument or rack fit.

DWK's closure guide emphasizes matching the container and screw cap thread finishes. A 22-400 closure should not be substituted with a 24-400 closure.


WHEATON 241317: Separately Sold 22-400 Linerless Cap

DWK separately sells WHEATON 241317, a white polyethylene 22-400 linerless screw cap. Its manufacturer record identifies a solid-top cap style, not-autoclavable designation, and 1,000 caps per case.

The WHEATON Vial Guide lists 241317 as the polyethylene linerless closure within the liquid scintillation cap family. However, the exact 986704 product page's polypropylene designation conflicts with that reference. Consequently, 241317 should be treated as a candidate replacement-cap reference pending confirmation, not as a proven identical cap for every current 986704 lot.

  • Cap-only SKU: 241317
  • Thread size: 22-400
  • Cap color: White
  • Cap material: Polyethylene
  • Liner: Linerless
  • Cap style: Solid top
  • Autoclavability: No
  • Separate purchase quantity: 1,000 caps per case
  • Exact relationship to 986704: Confirm with DWK due to conflicting cap-material documentation

WHEATON 986704 already includes its attached cap. WHEATON 241317 is a separate cap product and is not an extra accessory included in a 986704 case.


Related WHEATON 20 mL Scintillation Vial Configurations

The manufacturer's WHEATON Vial Guide distinguishes the following HDPE and PET versions. These products differ by vial material, liner construction, cap material, cap presentation, or case quantity.

SKU Vial material Cap / liner Presentation / case
986704 White HDPE White linerless cap; PP/PE discrepancy Attached / 500
986700 White HDPE White PP / foamed PE Attached / 500
986701 White HDPE White PP / foil-pulp Attached / 500
986702 White HDPE White urea / foil-cork Attached / 500
986706 White HDPE White urea / PE cone Attached / 500
986714 White HDPE White PE / linerless Caps separate / 500
986724 White HDPE White PE / linerless Caps separate / 1,000
986734 PET Linerless; cap polymer also differs between DWK records Attached / 500

All the listed vial configurations use a nominal 20 mL capacity and 22-400 thread. However, differences in material, liner construction, cap presentation, and case quantity can be important for procurement and method qualification.

Procurement distinction: 986704 is the linerless, caps-attached, 500-count HDPE version. 986714 has caps packed separately at 500/case, and 986724 has caps packed separately at 1,000/case. Do not interchange these packaging formats without approval.


Closure Handling, Seal Integrity, and Solvent Vapor Control

WHEATON 986704 is supplied with an attached white 22-400 screw cap, but the current product specification does not provide a certified leak rate, vapor-tight rating, maximum pressure, or cap-tightening torque.

With a linerless cap, proper closure operation depends on the complete cap and vial geometry. Damage to the vial rim, thread engagement, chemical exposure, repeated handling, and storage conditions can influence sealing performance.

  • Inspect vial neck and threads for cracks, deformation, or contamination.
  • Inspect the cap for damaged threads or contact surfaces.
  • Use the correct 22-400 cap configuration.
  • Follow the laboratory's approved capping procedure.
  • Do not assume a specific tightening torque.
  • Assess evaporation and vapor losses if the sample contains volatile solvents.
  • Use suitable secondary containment where required.
  • Follow chemical and radiological safety procedures.
  • Do not use ordinary scintillation vials as certified pressure or transport containers.

Case Packaging, Receiving, and Traceability

DWK lists WHEATON 986704 at 500 vials per case with caps attached. The current exact-SKU record does not establish the number of inner trays, carton weight, or shipping carton measurements.

  • Verify manufacturer number: 986704.
  • Verify body material: White HDPE.
  • Verify nominal capacity: 20 mL.
  • Verify cap type: White 22-400 linerless, attached.
  • Verify case quantity: 500.
  • Inspect for defects: Check the body, neck, threads, and cap.
  • Confirm cap polymer if required: Request written DWK clarification.
  • Record lot traceability: Retain appropriate manufacturer and receiving records.
  • Confirm specialized packaging: Request information if inner packaging or cleanliness is part of the purchase specification.

Third-party distributors may describe inner trays or specific packing arrangements. Such details should not be represented as current manufacturer-confirmed 986704 specifications without additional documentation.


Recommended Laboratory Preparation and QC Checklist
  1. Confirm identity: WHEATON 986704, white HDPE, 20 mL, 22-400 linerless closure.
  2. Check receiving quantity: Verify 500 vial-and-cap units per case.
  3. Inspect the assembly: Check vial body, rim, threads, and cap for visible damage.
  4. Resolve cap material: If material-specific compatibility matters, request confirmation of PE versus PP.
  5. Qualify sample chemistry: Evaluate all scintillation cocktail components against the vial and closure.
  6. Verify instrument fit: Confirm 27 mm diameter and 61 mm overall capped height.
  7. Prepare method-defined volumes: Follow the required sample-to-cocktail ratio and headspace.
  8. Close appropriately: Use the approved laboratory capping method and perform seal checks where necessary.
  9. Identify samples: Use appropriate labels or barcodes because no marking spot is supplied.
  10. Perform analytical QC: Apply blanks, standards, background and quench controls as required.
  11. Manage hazards: Follow chemical, radiological, ventilation, and waste procedures.
  12. Avoid unapproved sterilization: Do not autoclave the product.
  13. Maintain traceability: Record lot, sample, analytical method, and instrument information.

Cleaning, Storage, and Reuse Considerations

Any cleaning or reuse of WHEATON 986704 must account for the HDPE vial and linerless cap, as well as previous sample and scintillation cocktail exposure. The exact manufacturer page does not provide a validated universal cleaning or reuse process.

Used liquid scintillation vials may contain hazardous chemicals or radioactive residues. Laboratory safety and analytical procedures determine whether reuse is permitted and what contamination controls are required.

  • Determine whether the analytical method allows reuse.
  • Assess chemical and radioactive contamination before handling.
  • Choose cleaning agents compatible with both vial and confirmed cap materials.
  • Avoid excessive heat and unapproved sterilization.
  • Avoid abrasive cleaning or mechanical damage to threads and sealing surfaces.
  • Inspect the vial and cap before any permitted reuse.
  • Use required blank and carryover acceptance testing.
  • Follow approved storage, labeling, and hazardous-waste procedures.

Controlled Laboratory and Cleanroom Qualification

The exact manufacturer specification identifies WHEATON 986704 as non-sterile. The reviewed product information does not establish an ISO 14644 cleanroom classification, validated sterile barrier, endotoxin limit, DNase/RNase-free certification, or a specified particle-release performance.

For controlled-environment use, follow facility material-introduction, sample preparation, contamination control, and documentation procedures. The HDPE material designation does not independently qualify this product for sterile compounding, aseptic processing, or pharmaceutical production.

Qualification boundary: Do not represent WHEATON 986704 as sterile, ISO-classified, cleanroom-ready, or pharmaceutical-grade without specific supporting documentation.


Important Limitations and Unsupported Assumptions
  • Not glass: The vial body is white HDPE.
  • Not clear PET: PET versions are separate SKUs.
  • Not 28 mm diameter: This product is 27 mm.
  • Not 24-400: The correct thread is 22-400.
  • Not capless: The white screw cap is included and attached.
  • Not foam-lined: No foamed PE liner is specified.
  • Not foil-lined: No foil/pulp or foil/cork liner is specified.
  • Not PE-disc- or PE-cone-lined: The closure is linerless.
  • Not definitively PP or PE without confirmation: DWK manufacturer records conflict on cap material.
  • Not sterile: The exact product designation is non-sterile.
  • No exact-SKU autoclave field: General HDPE guidance identifies the material as not autoclavable.
  • No universal chemical compatibility: Verify the sample and actual cap polymer.
  • No guaranteed leakproof seal: No certified leak rate established.
  • No vapor-tight or pressure rating: No exact product certification established.
  • No numerical scintillation background guarantee: Not established for white HDPE 986704.
  • No verified UV-transmission percentage: Shared family claims are not exact white-HDPE specifications.
  • No calibrated 20 mL accuracy: Capacity is nominal.
  • No universal counter compatibility: Verify instrument geometry and material acceptance.
  • No marking spot: Use appropriate external identification.
  • No confirmed inner packaging breakdown: Request current manufacturer details if needed.
  • No hazardous-material shipping certification: Ordinary laboratory vials are not automatically certified transport containers.

Technical FAQs

What is WHEATON 986704?

A 20 mL white HDPE liquid scintillation vial with an attached white 22-400 linerless screw cap, supplied 500 per case.

What is the vial made of?

High-density polyethylene (HDPE), not borosilicate glass or PET.

What color is the vial?

White, according to the exact DWK product specification.

What is the vial capacity?

20 mL nominal; no calibrated measuring tolerance is established.

What are the dimensions?

27 mm diameter, 57 mm high without the cap, and 61 mm high including the cap.

Is a cap included?

Yes. DWK identifies a white screw cap attached to each vial.

What does linerless mean?

There is no separately specified cap liner, unlike PE foam, foil/pulp, foil/cork, PE-disc, or PE-cone closures.

Is linerless the same as no cap?

No. The screw cap is included and attached. Linerless describes its lack of a separate liner insert.

What is the thread finish?

22-400. The container and screw-cap thread finishes must match.

Is the cap polypropylene or polyethylene?

DWK's current 986704 product page lists polypropylene, while its Vial Guide lists polyethylene. Confirm the current supplied cap material with DWK.

What is WHEATON 241317?

A separately sold white polyethylene 22-400 linerless cap, 1,000 per case. Confirm its exact replacement relationship with 986704 before substitution.

What is the difference between 986704 and 986700?

986704 has a linerless cap. WHEATON 986700 uses a white PP cap with a foamed polyethylene liner.

What is the difference between 986704 and 986701?

986701 uses a metal foil/pulp liner with a white polypropylene cap. WHEATON 986704 is linerless.

What is the difference between 986704 and 986706?

986706 uses a white urea cap with a polyethylene cone liner; 986704 uses a linerless screw cap.

Is a linerless cap guaranteed leakproof?

No. No certified leakage, vapor-tight, or hermetic rating was established in the reviewed manufacturer specification.

Is this vial suitable for all organic solvents?

No universal solvent-compatibility approval is established. Assess the HDPE vial and confirmed cap polymer against the actual formulation.

Is WHEATON 986704 sterile?

No. The manufacturer explicitly identifies it as non-sterile.

Can 986704 be autoclaved?

The exact SKU page does not publish an autoclavability field. DWK's general plastics guide identifies HDPE as not autoclavable, so do not autoclave without written manufacturer approval.

Does the vial have a marking spot?

No. Use an appropriate external labeling or barcode system.

Does this white HDPE vial have high UV transmission?

No numerical SKU-specific UV transmission value has been established. The shared family statement should not be treated as a verified optical specification for white HDPE.

Are scintillation background counts certified?

No numerical exact-SKU background or counting-efficiency rating was established in the reviewed information.

Will it fit every scintillation counter?

Not automatically. Confirm instrument acceptance of a white HDPE vial with 27 mm diameter and 61 mm capped height.

How is 986704 different from 986714?

986704 has attached caps. WHEATON 986714 has linerless caps packed separately, with 500 vials per case.

How is 986704 different from 986724?

986704 has attached caps and 500 units per case. WHEATON 986724 has caps packed separately and 1,000 units per case.

How is 986704 different from 986734?

986734 uses a PET vial body rather than white HDPE. Both are linerless configurations, but vial and cap materials require their own specification checks.

How many vials come in one case?

500 vials with their specified attached linerless caps.


Manufacturer Technical References

These external links lead only to DWK technical-information pages, not manufacturer product-detail, catalog, or purchasing pages. General material information does not override product-specific documentation or application qualification.


For quotations or product questions, email Sales@SOSsupply.com or call (214) 340-8574. SOSCleanroom can assist with WHEATON exact-SKU sourcing, linerless closure selection, cap-material verification, case quantities, and applicable DWK technical documentation. Technical insight: WHEATON 986704 combines a white HDPE vial and linerless 22-400 closure. Material compatibility, cap polymer identification, sample containment, instrument fit, and analytical background are distinct qualification requirements. Last updated: October 28, 2026 © 2026 Specialty Optical Systems, Inc. (dba SOSCleanroom). All rights reserved.