The Technical Vault
By SOSCleanroom
4 mL Capacity
Polypropylene
15 × 45 mm
15 mm Snap Plug
Caps Sold Separately
1,000 per Case
WHEATON 225129: Selecting the Vial and Closure as a Complete System
The WHEATON® 225129 is a
4 mL natural polypropylene shell vial
measuring 15 mm outside diameter
× 45 mm height.
It belongs to the WHEATON shell-vial family
used in laboratory sample preparation and
suitable chromatography workflows.
The corresponding closure is a
15 mm natural LDPE snap plug,
manufacturer number 242815.
The plug is sold separately and features
a starburst-style top designed to facilitate
needle penetration.
Selection should consider the polypropylene vial,
optional polyethylene closure, sample chemistry,
instrument compatibility, temperature requirements,
and the method's contamination-control limits.
Technical takeaway:
WHEATON 225129 is supplied as
vials only.
The separately purchased LDPE snap plug
has different material characteristics
from the polypropylene vial, including
different temperature and chemical-resistance
considerations.
Core Product Specifications
| Specification |
WHEATON 225129 |
| Manufacturer |
DWK Life Sciences |
| Brand |
WHEATON® |
| Catalog number |
225129 |
| Product style |
Laboratory shell vial |
| Nominal capacity |
4 mL |
| Material |
Polypropylene (PP) |
| Color |
Natural |
| Outside diameter |
15 mm |
| Height |
45 mm |
| Closure format |
15 mm snap plug |
| Compatible plug SKU |
242815 |
| Compatible plug material |
Low-density polyethylene (LDPE) |
| Caps included |
No - sold separately |
| Vials per case |
1,000 |
| Vial autoclavability |
Yes, per manufacturer 2026 item-setup data |
| Country of origin |
United States, per manufacturer item data |
Important:
The published dimensions describe the vial body,
not an assembled vial-and-plug height.
The reviewed data do not establish a clear
mouth opening, brim capacity, or calibrated
volumetric tolerance.
Compatible Snap Plug Cap - WHEATON 242815
The corresponding separately sold closure
is WHEATON 242815,
a 15 mm natural LDPE snap plug.
It is not included with the 225129 case.
| Attribute |
Compatible Closure |
| Manufacturer SKU |
242815 |
| Size |
15 mm |
| Material |
LDPE |
| Color |
Natural |
| Closure style |
Push-in snap plug |
| Special feature |
Starburst top for easier needle penetration |
| Manufacturer case quantity |
1,000 plugs |
Ordering requirement:
The customer must order 225129 vials
and 242815 snap plugs as separate items
when both components are needed.
Contact SOSCleanroom to coordinate
availability and quantities.
What Is a Starburst Snap Plug?
WHEATON describes its polyethylene shell-vial
snap plugs as having a
starburst-style top
to make needle penetration easier.
This construction can support selected
sample-access methods, but the presence
of a starburst feature does not establish
compatibility with every needle,
autosampler, or sample-sealing procedure.
The reviewed specifications do not establish
validated repeat-puncture counts,
self-sealing performance, leak-tightness
after puncture, or a sterile-barrier claim.
Qualify the complete vial-and-plug assembly
for those requirements when applicable.
Polypropylene Vial vs. LDPE Plug - Important Material Differences
| Consideration |
PP Vial |
LDPE Plug |
| Part number |
225129 |
242815 |
| Primary function |
Sample container |
Push-in closure |
| Material characteristics |
Relatively rigid polypropylene |
More flexible low-density polyethylene |
| Autoclaving |
Manufacturer item data marks vial autoclavable |
General LDPE resin guidance does not classify it as autoclavable; no plug-specific cycle established |
| Chemical compatibility |
Evaluate polypropylene against the sample |
Evaluate LDPE independently against the sample |
These are material-selection distinctions.
They do not substitute for product-specific
compatibility and processing qualification.
Chemical Compatibility and Analytical Sample Integrity
Polypropylene has useful chemical resistance
across many laboratory applications.
However, compatibility must be assessed
using the actual chemical, concentration,
temperature, and contact duration.
WHEATON's technical chemical-resistance
reference provides separate ratings for
polypropylene and low-density polyethylene.
This distinction matters when samples
contact both the vial and snap plug.
Where sample quality is critical, evaluate
adsorption, extractables, leachables,
evaporation, analyte recovery, and sample
stability using the selected container
and closure system.
Compatibility guidance:
General chemical-resistance tables are
screening tools, not complete proof
of sample stability or analytical suitability.
Test the assembled vial-and-plug configuration
under actual laboratory conditions.
Autoclavability, Processing, and Sterility
The manufacturer's 2026 item-setup record
identifies 225129 as autoclavable.
DWK's general laboratory-plasticware guidance
also describes polypropylene as a material
commonly suitable for steam autoclaving.
DWK describes a general plasticware reference
cycle of 121°C at approximately
15 psi for 20 minutes.
This is general material guidance,
not a documented product-specific
validation for the 225129 vial.
The separately supplied LDPE plug
must not be assumed suitable for the same
steam-autoclave conditions. The technical
resin guide distinguishes PP from LDPE
in its autoclaving characteristics.
Processing rule:
Do not automatically autoclave a filled,
plugged, or sealed assembly.
Establish an approved cycle and
component configuration through
the laboratory's validated procedure.
The vial's autoclavability does
not establish supplied sterility.
No supplied-sterile claim, sterility
assurance level, depyrogenation claim,
endotoxin limit, or validated complete-assembly
sterilization cycle is established here.
Chromatography and Autosampler Compatibility
Shell vials are used in selected chromatography
and laboratory autosampling applications,
but instrument compatibility requires
more than matching the nominal vial volume.
- Vial geometry: Confirm 15 mm outside diameter and 45 mm height against the instrument's accepted vial format.
- Vial holders: Confirm tray, rack, or adapter compatibility.
- Working volume: Establish the required sample level and needle immersion depth.
- Needle access: Verify compatibility with the selected 15 mm snap plug and any starburst opening.
- Sample chemistry: Evaluate PP and LDPE compatibility independently.
- Method validation: Confirm acceptable retention, carryover, sample recovery, and closure performance.
No specific autosampler brand or instrument
model is certified as compatible by the
reviewed 225129 item data.
Comparison With Related WHEATON Shell Vial Configurations
| Manufacturer SKU |
Configuration |
Selection Difference |
| 225129 |
4 mL natural PP shell vial |
This product; vials only |
| 225126 |
4 mL clear glass shell vial |
Borosilicate glass alternative |
| 225127 |
4 mL amber glass shell vial |
Amber borosilicate glass alternative |
| 225130 |
3 mL PP limited-volume shell vial |
Different internal volume configuration |
| 242815 |
15 mm natural LDPE snap plug |
Separate closure accessory |
Product families share certain dimensions
but differ in material, sample volume,
light transmission, and processing behavior.
They are not automatic substitutes for
a validated analytical method.
Contact SOSCleanroom to confirm availability
of related vial configurations and
matching snap plug closures.
Recommended Handling and Inspection Checkpoints
- Verify identity: Confirm SKU 225129, natural PP material, 4 mL capacity, and 1,000-vial case quantity.
- Inspect the vial: Check for deformation, cracking, scratches, or contamination.
- Review the sample: Confirm chemical compatibility and the required working volume.
- Verify the closure: If using snap plugs, confirm the correct 15 mm LDPE part number and satisfactory fit.
- Protect sample integrity: Establish the approved preparation and storage requirements.
- Control processing: Use a qualified procedure before any autoclaving or other sterilization attempt.
- Maintain records: Follow laboratory requirements for sample identification, traceability, and material acceptance.
Storage, Cleanroom Use, and Important Limitations
Manufacturer item-setup data identify
room-temperature shipping and storage
for the supplied empty vial.
These conditions do not establish
the required storage conditions for
every filled sample.
The reviewed product data do not establish
a supplied sterile designation,
an ISO cleanroom class, a quantitative
particle-release specification, or
an endotoxin limit for 225129.
No certified vacuum, pressure, centrifugation,
cryogenic, or liquid-transport rating
is assigned here. The separately purchased
snap plug also does not carry a universal
leakproof or resealing guarantee.
Technical FAQs
Does WHEATON 225129 include the caps?
No. The 225129 case contains polypropylene
shell vials only. Compatible 15 mm LDPE
snap plugs are sold separately.
Which cap should I order?
WHEATON 242815 is the corresponding
natural 15 mm LDPE snap plug.
Contact SOSCleanroom for assistance
selecting and ordering the closure.
What is the vial material?
Natural polypropylene. This is
a plastic shell vial, not a
borosilicate glass vial.
What are the dimensions?
The vial measures 15 mm outside diameter
and 45 mm height, with a nominal
capacity of 4 mL.
Is the vial autoclavable?
Yes, according to the manufacturer's
2026 item-setup record.
The specific procedure requires
qualification, and the separate
LDPE cap must not be assumed
autoclavable.
Can the snap plug be pierced with a needle?
The compatible LDPE snap plug has
a starburst top designed for easier
needle penetration. Repeated puncture,
instrument compatibility, and
post-puncture sealing must be verified
for the intended procedure.
Are these vials supplied sterile?
The reviewed product records do not
establish a supplied-sterile designation.
Autoclavability alone does not mean
the product arrives sterile.
How many vials are supplied?
1,000 vials per case.
Snap plug caps are a separate item.
Technical Documentation and Reference Materials
The following manufacturer technical
references can assist with polymer selection,
handling, and chemical compatibility.
They are technical resources, not
product-ordering pages.
Technical-document note:
General resin performance does not establish
a qualified temperature cycle, chemical
resistance rating, or analytical performance
for every complete vial-and-cap assembly.
Obtain application-specific confirmation
when the method requires it.
Technical Assistance and Ordering Support
SOSCleanroom can assist with
WHEATON 225129 vial orders,
compatible 242815 snap plug caps,
product comparisons, and requests
for additional technical documentation.
Need help selecting a shell vial?
Contact SOSCleanroom for availability,
pricing, and assistance matching
a vial and closure to the intended
laboratory procedure.
Email:
Sales@SOSsupply.com
Phone:
(214) 340-8574
For product specifications, ordering,
availability, or application assistance,
contact SOSCleanroom at
Sales@SOSsupply.com or (214) 340-8574.
Technical insight:
WHEATON 225129 is a polypropylene
shell vial supplied without a closure.
The separately ordered LDPE plug has
different processing and material
compatibility considerations.
Last updated: October 22, 2026
© 2026 Specialty Optical Systems, Inc.
(dba SOSCleanroom). All rights reserved.