Texwipe TX761K Low TOC Alpha® Polyester Knit Sampling Swab with Long Break-Away Handle - 20 Swabs/Bag - 1,000 Swabs/Case
Texwipe TX761K Low TOC Alpha® Sampling Swab is a precision-manufactured, low-linting polyester cleanroom swab developed for Total Organic Carbon (TOC) cleaning validation and the controlled collection of surface residues. Its narrow, flexible polyester knit head and extended polypropylene handle make it particularly useful for sampling recessed equipment features, confined spaces, narrow channels, and other difficult-to-access locations.
The TX761K features a double-layered, double-knit 100% polyester head that is thermally bonded to a rigid, light-green polypropylene handle without adhesives. Texwipe uses a proprietary cleaning process to achieve a certified low-TOC background of less than 50 µg/L (50 ppb), helping laboratories control organic background contribution from sampling materials.
A notched break-away handle allows the swab head to be separated and placed directly into a compatible collection vial, minimizing direct handling after sampling. The long-handle design provides greater reach than the shorter TX714K Alpha® sampling swab while maintaining a smaller sampling head for precision access.
TX761K is supplied dry and non-sterile. Standard manufacturer packaging contains 20 swabs per bag and 50 bags per case, totaling 1,000 swabs per case. The swabs are lot coded to support material traceability, analytical qualification, and controlled cleaning-validation workflows.
Long-Reach Sampling Advantage: TX761K combines a certified low-TOC polyester head, narrow sampling geometry, extended handle, and break-away transfer feature to support controlled sampling of difficult-to-access equipment surfaces. Its design helps operators reach recessed features while maintaining consistent swab handling, contamination-control practices, and traceable transfer into analytical collection vials.
Specifications:
- Manufacturer: Texwipe, an ITW company
- Manufacturer Part Number: TX761K
- Product Family: Low TOC Alpha® Cleaning Validation Swabs
- Product Type: Long-Handle Polyester Knit Sampling Swab
- Primary Application: TOC Cleaning Validation Surface Sampling
- Secondary Application: Precision sampling of hard-to-reach areas and small spaces
- Supplied Condition: Dry
- Sterility: Non-sterile
- Swab Head Material: 100% Alpha® polyester knit
- Swab Head Construction: Double-layered, double-knit polyester
- Head Bonding: Thermal, without adhesives
- Handle Material: 100% polypropylene
- Handle Color: Light green
- Handle Design: Long, rigid handle with break-away notch
- Head Shape: Narrow, flexible paddle
- Head Width: 7.0 mm (0.276 inch)
- Head Thickness: 3.0 mm (0.118 inch)
- Head Length: 16.8 mm (0.661 inch)
- Handle Width: 3.2 mm (0.126 inch)
- Handle Thickness: 3.2 mm (0.126 inch)
- Handle Length: 146.2 mm (5.756 inches)
- Total Swab Length: 163.0 mm (6.417 inches)
- Certified Low TOC Level: Less than 50 µg/L (50 ppb)
- Swab Background: Controlled by manufacturer cleaning and qualification processes
- Typical Nonvolatile Residue, DI Water Extractant: 0.01 mg/swab
- Typical Nonvolatile Residue, IPA Extractant: 0.03 mg/swab
- Swab Testing: Manufacturer laboratory test methods, with typical extractables values available
- Traceability: Lot coded
- Autoclave Compatibility: Manufacturer identifies the swab as autoclavable, subject to a qualified facility process
- Food Processing Classification: NSF P1 cleaning-swab certification, subject to manufacturer use conditions
- Manufacturing Quality System: ISO 9001:2015
- Country of Origin: Philippines
- Published Shelf Life: Five years from date of manufacture
- Recommended Storage Temperature: 15-30°C (59-86°F)
- Inner Packaging: 20 swabs per bag
- Manufacturer Case Packaging: 50 bags per case
- Manufacturer Case Quantity: 1,000 swabs
- Manufacturer Technical Reference: US-TDS-059, Rev. 9/21
About the Manufacturer:
Texwipe, an ITW company, manufactures cleanroom swabs, wipers, cleaning-validation consumables, and contamination-control supplies for pharmaceutical manufacturing, biotechnology, medical devices, semiconductor processing, and other critical industries.
Texwipe's Alpha® cleaning-validation swabs are precision manufactured using controlled polyester materials and adhesive-free thermal bonding. Their specialized manufacturing and cleaning processes are designed to limit contamination from the sampling device and support consistent analytical sampling.
SOSCleanroom supports customers with Texwipe swab selection, manufacturer technical documentation, sampling geometry comparisons, packaging information, and procurement assistance for regulated cleaning-validation and contamination-control programs.
TX761K Features:
- Certified low-TOC sampling swab for cleaning validation
- Certified TOC background below 50 µg/L
- Double-layered, double-knit Alpha® polyester head
- 100% polypropylene handle
- Extended 163.0 mm overall length
- Narrow 7.0 mm sampling head
- Flexible head paddle for difficult-to-access surfaces
- Notched, break-away handle
- Thermally bonded head without adhesives
- Manufacturer proprietary cleaning process
- Lot-coded packaging and traceability
- Controlled low-background sampling construction
- Suitable for precision sampling in recessed locations
- Compatible with qualified TOC cleaning-validation procedures
- Manufacturer-identified autoclave compatibility
- NSF P1 cleaning-swab certification
- Non-sterile dry presentation
- 20 swabs per bag
- 50 bags per case
- 1,000 swabs per manufacturer case
TX761K Benefits:
- Extended Reach: The longer handle provides access to recessed equipment locations that may be difficult to sample with shorter swabs.
- Narrow Sampling Geometry: The smaller head supports controlled contact with grooves, ports, channels, and other confined features.
- Low Analytical Background: Certified low-TOC construction helps control the sampling device's contribution to organic carbon measurements.
- Controlled Sample Transfer: The break-away notch allows the swab head to enter a collection vial without unnecessary hand contact.
- Consistent Construction: Precision manufacturing supports repeatable swab geometry and controlled sampling technique.
- Adhesive-Free Bonding: Thermal head attachment avoids adhesives at the bond that could contribute unwanted analytical background.
- Residue Collection: The polyester knit structure helps retain collected surface residues during swabbing.
- Residue Release: The double-knit construction supports extraction of collected material into the validated laboratory diluent.
- Traceability: Lot-coded packaging supports quality records and investigations.
- Flexible Purchasing: Standard 20-count bags and 1,000-count manufacturer cases accommodate different consumption volumes.
Common Applications:
- Pharmaceutical cleaning validation
- Total Organic Carbon surface residue sampling
- Sampling internal equipment recesses and narrow channels
- Sampling around gaskets and seals
- Precision sampling of equipment corners and crevices
- Valve body and port sampling
- Cleaning verification of complex production equipment
- Biotechnology process equipment qualification
- Medical device manufacturing equipment sampling
- Residual organic contamination investigations
- Surface sampling in controlled laboratory procedures
- Sampling hard-to-reach equipment contact points
- Cleaning effectiveness studies for compatible materials
- Controlled precision cleaning where low-background swabs are required
Best-Practice Use:
- Follow the Validated Method: Use the approved equipment-specific sampling protocol.
- Verify the Swab: Confirm TX761K identification, package integrity, lot number, and expiration information.
- Control Sampling Materials: Use the specified collection vial and low-background diluent.
- Define the Sampling Location: Identify the exact recessed feature or equipment surface in the sampling plan.
- Use Consistent Wetting: Wet the swab with the approved volume and type of sampling solution.
- Apply Controlled Pressure: Avoid bending the handle excessively or damaging the polyester head.
- Maintain Contact: Keep the head in contact with the intended sampling surface throughout the defined swabbing pattern.
- Control Stroke Direction: Follow the approved number and direction of passes.
- Avoid Unqualified Surfaces: Do not allow the swab head to touch surrounding equipment, clothing, or work surfaces unintentionally.
- Use the Break-Away Feature: Transfer the sampled head directly into the collection vial.
- Cap Promptly: Minimize the time the collection vial remains open.
- Label Immediately: Record the assigned sample identification and required collection information.
- Include Controls: Follow the method's requirements for blanks, recovery samples, and other analytical controls.
- Transport Properly: Maintain validated sample storage and holding conditions.
- Document Deviations: Record unusual handling, inaccessible surfaces, damaged swabs, or incomplete sample coverage.
Long-Reach Sampling of Recessed Equipment Surfaces:
The TX761K long-handle design is useful when a cleaning-validation protocol requires access to equipment locations that cannot be reached consistently using a conventional short sampling swab. Its narrow polyester head can be directed into suitable recessed areas while keeping the operator's hands farther from the sampling point.
- Equipment Recesses: Sample qualified recessed surfaces using a controlled insertion angle.
- Narrow Grooves: Use the slender sampling head where sufficient clearance exists for controlled contact.
- Gaskets and Seals: Follow the approved procedure for sampling adjacent surfaces without damaging sensitive materials.
- Valve Housings: Establish the exact contact area and stroke sequence for internal accessible features.
- Ports and Channels: Confirm that the swab can reach the intended surface without becoming trapped.
- Equipment Corners: Maintain appropriate contact pressure and overlap.
- Surface Geometry: Document the actual sampled area or alternative recovery approach where the area cannot be measured conventionally.
- Handle Control: Avoid excessive bending or levering against sharp equipment edges.
- Sample Recovery: Qualify collection and extraction performance for the specific surface geometry.
- Operator Training: Standardize insertion depth, angle, contact pressure, and withdrawal technique.
Long-Reach Sampling Guidance: Greater handle reach improves access but does not automatically establish quantitative residue recovery. Complex surfaces should be evaluated using representative recovery studies and a documented sampling technique that controls the swab angle, contact area, pressure, and stroke pattern.
TOC Sampling and Swab-to-Vial Transfer Workflow:
The TX761K break-away handle is designed to support controlled transfer of collected residue into a compatible vial. Sampling and extraction conditions must follow the laboratory's approved method.
- Prepare the Sampling Plan: Identify the equipment, cleaning event, surface location, sample ID, and required controls.
- Verify Materials: Inspect TX761K packaging and prepare the appropriate low-TOC collection vial and approved diluent.
- Establish the Sampling Area: Use a defined surface area or qualified geometry-specific sampling procedure.
- Wet the Swab: Apply the method's specified quantity of sampling solution.
- Collect the Sample: Use consistent, controlled strokes over the designated surface.
- Complete Required Passes: Follow the sampling protocol for swab rotation, directional passes, or additional swabs.
- Prepare the Vial: Open the vial while avoiding contact with the inner cap and collection surfaces.
- Position the Swab: Place the sampled polyester head inside the vial opening.
- Break at the Notch: Separate the swab head using the designed handle notch without touching the sampled material.
- Close the Vial: Cap promptly using the approved procedure.
- Identify the Sample: Apply the required label and complete the associated sampling record.
- Maintain Chain of Custody: Document transfer from the sampling operator to the analytical laboratory.
- Analyze: Perform the approved extraction and TOC measurement.
- Review: Evaluate blank contribution, recovery, calculated results, and acceptance criteria.
Break-Away Transfer Guidance: Position the sampled head within the vial before breaking the handle at the notch. Avoid touching the head or allowing it to contact the exterior of the vial. Use the vial size, diluent volume, number of swabs, and extraction process established by the validated analytical method.
Low TOC Qualification and Analytical Background:
Texwipe certifies TX761K swabs to a low TOC background of less than 50 µg/L under its applicable testing conditions. This helps control the contribution of the sampling device during sensitive organic residue measurements.
- Certified Background: Less than 50 µg/L (50 ppb) TOC.
- Manufacturer Processing: Proprietary cleaning reduces background organic contribution.
- Polyester Head: Double-knit construction supports residue collection and release into extraction liquid.
- Thermal Bond: Eliminates adhesive at the head attachment.
- Polypropylene Handle: Supports controlled handling and chemical compatibility.
- Method Blank: Evaluate the background contribution of the full analytical procedure.
- Swab Blank: Determine the extraction contribution from an unused TX761K swab when required.
- Diluent Blank: Assess organic carbon introduced by the sampling or extraction solution.
- Container Blank: Evaluate collection vial and closure background as specified by the method.
- Recovery Study: Verify collection and extraction recovery for representative residues and surfaces.
- Background Trending: Monitor blank results for unusual increases or variability.
- Analytical Acceptance: Use the laboratory's validated blank and system-suitability criteria.
Low TOC Interpretation: The certified swab background is a manufacturer material-performance characteristic, not a guarantee that every collected sample will measure below 50 µg/L. Actual TOC results include contributions from collected residue, diluent, sample containers, handling, and the analytical procedure. Evaluate appropriate blanks and recovery controls with every qualified sampling method.
Typical Extractables and Nonvolatile Residue:
Texwipe publishes typical ionic extractables and nonvolatile residue data for its cleaning-validation swabs. These values are useful for comparison and material qualification, but the manufacturer identifies them as typical analyses rather than formal specification limits.
| Typical Ion Extractable |
TX761K (µg/swab) |
| Calcium |
0.03 |
| Chloride |
0.02 |
| Fluoride |
0.08 |
| Magnesium |
0.02 |
| Nitrate |
0.11 |
| Phosphate |
0.10 |
| Potassium |
0.08 |
| Sodium |
0.14 |
| Sulfate |
0.13 |
Typical Nonvolatile Residue:
- Deionized Water Extractant: 0.01 mg/swab
- Isopropyl Alcohol Extractant: 0.03 mg/swab
Typical data are based on Texwipe's laboratory testing and should not be treated as lot-specific acceptance limits. Qualify the product using the applicable manufacturer documentation and the facility's analytical requirements.
Sample Traceability and Chain of Custody:
Because TX761K is frequently used in regulated cleaning-validation programs, traceability should connect the sampling consumable to the equipment, cleaning event, collection vial, operator, and laboratory result.
- Swab Product Code: TX761K.
- Swab Lot: Record the manufacturer lot identification.
- Equipment ID: Identify the equipment or manufacturing line sampled.
- Sampling Location: Record the precise surface, recess, or equipment feature.
- Cleaning Event: Link the sample to the relevant cleaning procedure and batch or cycle.
- Collection Time: Record the date and time of sampling.
- Operator: Identify the individual collecting the sample.
- Sampling Method: Record the approved method and any required geometry-specific instructions.
- Sample Vial: Use a unique identifier linked to the laboratory request.
- Control Samples: Clearly distinguish blanks, recovery samples, and routine equipment samples.
- Holding Conditions: Record required transport and storage information.
- Laboratory Receipt: Document sample arrival and condition.
- Analytical Result: Link the reported data to the original collection record.
- Deviations: Document unusual access difficulty, incomplete coverage, or handling issues.
Traceability Guidance: A complete sampling record should identify both the material used and the exact surface sampled. Include the swab lot, collection vial ID, equipment location, cleaning event, sampler, and analytical result so that unexpected measurements can be investigated without losing the connection to the original sampling activity.
Selection Notes: TX761K vs. TX714K:
TX761K and TX714K belong to Texwipe's Low TOC Alpha® polyester cleaning-validation family. Both use certified low-TOC polyester heads, polypropylene break-away handles, and the same standard bag and case quantities. Their key differences are head geometry and reach.
| Specification |
TX761K |
TX714K |
| Head Width |
7.0 mm |
13.2 mm |
| Head Thickness |
3.0 mm |
4.1 mm |
| Head Length |
16.8 mm |
25.7 mm |
| Handle Length |
146.2 mm |
101.8 mm |
| Overall Length |
163.0 mm |
127.5 mm |
| Certified TOC |
<50 µg/L |
<50 µg/L |
| Packaging |
20/bag; 50 bags/case |
20/bag; 50 bags/case |
| Best Suited For |
Long-reach, narrow-access sampling |
Broader accessible surface sampling |
- Choose TX761K: For narrow, recessed, or difficult-to-access equipment locations requiring a longer handle.
- Choose TX714K: For larger accessible sampling areas where a wider polyester head provides appropriate surface contact.
- Same Low-TOC Family: Both are certified below 50 µg/L TOC under the manufacturer's test conditions.
- Same Manufacturer Case Quantity: Both are packaged 20 swabs per bag and 50 bags per case.
- Method Qualification: Changing between swab head geometries may affect sampling recovery and should be evaluated under the approved method.
Sampling Selection Guidance: Choose TX761K for extended reach and narrower sampling contact. Choose TX714K for wider, more accessible surfaces. Because head geometry affects how residue is collected and extracted, substituting one swab for the other should be evaluated against the approved recovery study and sampling procedure.
Non-Sterile Supply and Autoclave Compatibility:
TX761K is supplied non-sterile, and Texwipe identifies the swab construction as autoclavable for use in appropriately controlled sterile environments and processes. Sterile processing must be qualified using the actual swab, packaging, loading configuration, and laboratory method.
- Supplied Condition: Dry and non-sterile.
- Autoclave Compatibility: Manufacturer identifies the swab as autoclavable.
- Cycle Validation: Establish suitable conditions using the facility's approved sterilization program.
- Packaging: Do not assume the original swab bag is suitable for steam sterilization.
- Post-Processing Handling: Maintain appropriate controls to prevent recontamination.
- TOC Background: Evaluate whether processing changes the swab's analytical background characteristics.
- Recovery Performance: Confirm that any reprocessing does not compromise sampling effectiveness.
- Lot Records: Maintain manufacturer lot and processing records where required.
- Sterile Application: Use only when the complete processing and handling procedure meets the facility's requirements.
Processing Guidance: Autoclavable construction does not mean TX761K is supplied sterile or can be sterilized in its original packaging without qualification. Establish an approved processing method and verify that post-processing cleanliness and analytical background remain suitable for the intended application.
Packaging and Storage Recommendations:
- Manufacturer SKU: TX761K
- Inner Packaging: 20 swabs per bag
- Manufacturer Case: 50 bags
- Total Case Quantity: 1,000 swabs
- Sterility: Non-sterile
- Supplied Condition: Dry
- Lot Traceability: Lot coded
- Published Shelf Life: Five years from manufacture
- Storage Temperature: 15-30°C (59-86°F)
- Storage Conditions: Clean, protected ambient storage
- Bag Integrity: Inspect unopened packaging before material transfer or sampling
- Head Protection: Keep sampling heads away from uncontrolled surfaces and handling contamination
- Opened Bags: Protect remaining swabs using the facility's approved consumable-storage procedure
- Sampling Use: Use a fresh, appropriately controlled swab for each designated sampling event
- Used Swabs: Follow approved laboratory and chemical waste procedures
Manufacturer Technical Documents:
Texwipe TX761K Manufacturer Product Information: Click Here
Texwipe Cleaning Validation Swabs & TOC Kits U.S. Technical Data Sheet - US-TDS-059 Rev. 9/21 (PDF): Click Here
Texwipe Low TOC Alpha® TX714K / TX761K Technical Data Sheet (PDF): Click Here
Texwipe Cleaning Validation and TOC Sampling Product Information: Click Here
SOSCleanroom TX761K Product Information: Click Here
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Low TOC Sampling Swabs and Cleaning Validation Kits
Notes: Need assistance selecting a low-TOC sampling swab, comparing TX761K with TX714K, or establishing a traceable cleaning-validation workflow? Open the SOSCleanroom Technical Vault tab above for additional guidance on long-reach sampling, TOC background control, method blanks, recovery studies, swab-to-vial transfer, sample identification, and analytical qualification.
SOSCleanroom.com supports pharmaceutical, biotechnology, medical device, laboratory, and other critical environments with Texwipe cleaning-validation swabs, TOC kits, cleanroom wipers, and contamination-control consumables. Our team provides manufacturer documentation, product-selection assistance, packaging information, and procurement support.
Product description updated: October 26, 2026 (SOS Technical Staff)
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