The 2026 AATCC Proficiency Testing Program (PTP) is still available for your lab to register! The program makes it easy for textile labs to measure their testing accuracy and support quality assurance. Online registration at https://www.aatcc.org/ptp allows companies to register for the PTPs in easy steps. Just add PTP registration(s) to your cart along with AATCC quality control materials, standards, and other items.
Interested in AATCC Proficiency Testing Program (PTP) Visit https://www.aatcc.org/ptp
What’s New for 2026
- New online data entry system for faster access to datasheets, smoother communication, and quicker access to reports
- Each program offered only once per year—please plan ahead!
- Streamlined reports and updated data sheets for easier analysis
Register Today
Visit https://www.aatcc.org/ptp to select your programs and complete registration in one easy step. You can also bundle your PTP registration with AATCC quality control materials and testing standards. About the AATCC PTP The AATCC invites you to participate in the 2026 Proficiency Testing Program (PTP). This annual initiative helps textile labs worldwide:
- Benchmark performance
- Verify testing accuracy
- Support certification and quality assurance initiatives
- Identify areas for improvement
Seven targeted programs cover key testing areas: Antibacterial Properties, Appearance & Physical Properties, Color Evaluation, Colorfastness, Fiber Analysis, Moisture Management, and Resistance & Repellency. Each round features carefully selected samples for meaningful, consistent results. Each participating lab receives:
- Standardized samples and instructions
- One month to complete testing and submit results
- Confidential performance reports
- A Certificate of Participation
2026 Program Schedule
Each program is offered once per calendar year. Please note: Payment AND Registration must be completed by the 2026 deadlines below to receive samples and participate.
| Program | Registration Deadline | Sample Shipment | Key Test Methods |
| PTP2: Fiber Analysis | January 15 | February | TM20, TM20A |
| PTP3: Appearance & Physical Properties | February 15 | March | TM88B, TM88C, TM124, TM128, TM135, TM179 |
| PTP4: Antibacterial Properties | March 15 | April | TM100, TM147 |
| PTP6 Colorfastness | May 15 | June | TM8, TM15, TM16.3, TM61, TM107, TM133, TM162 |
| PTP7: Moisture Management | June 15 | July | TM79, TM195, TM197, TM198, TM199, TM200, TM201, TM204, TM213 |
| PTP5: Resistance & Repellency | July 15 | August | TM22, TM35, TM42, TM118, TM127 |
| PTP1: Color Evaluation | August 15 | September | EP1, EP2, EP7, EP12 |
PTP2: Fiber Analysis Deadline to Register: January 15 Samples shipped February TM20, Fiber Analysis: Qualitative TM20A, Fiber Analysis: Quantitative 
PTP3: Appearance & Physical Properties Deadline to Register: February 15 Samples shipped March 2026 TM88B, Seam Smoothness in Fabrics after Home Laundering TM88C, Crease Retention in Fabrics after Home Laundering TM124, Appearance of Fabrics after Home Laundering TM128 Wrinkle Recover of Fabrics: Appearance Method TM135, Dimensional Changes of Fabrics after Home Laundering TM179, Skew Change in Fabrics after Home Laundering 
PTP4: Antibacterial Properties Deadline to Register: March 15 Samples shipped April TM100, Antibacterial Finishes on Textile Materials: Assessment of TM147, Antibacterial Activity Assessment of Textile Materials: Parallel Streak Method 
PTP6: Colorfastness Deadline to Register: May 15 Samples shipped June AATCC TM8 Test Method for Colorfastness to Crocking: Crockmeter AATCC TM15 Test Method for Colorfastness to Perspiration AATCC TM16.3 Test Method for Colorfastness to Light: Xenon-Arc AATCC TM61 Test Method for Colorfastness to Laundering: Accelerated AATCC TM107 Test Method for Colorfastness to Water AATCC TM133 Test Method for Colorfastness to Heat: Hot Pressing AATCC TM162 Test Method for Colorfastness to Water: Chlorinated Pool 
PTP7: Moisture Management Deadline to Register: June 15 Samples shipped July TM79, Absorbency of Textiles TM195, Liquid Moisture Management Properties of Textile Fabrics TM197, Vertical Wicking Rate of Textiles: to Specified Distances TM198, Horizontal Wicking of Textiles TM199, Drying Time of Textiles: Moisture Analyzer Method TM200, Drying Rate of Textiles at their Absorbent Capacity: Air Flow Method TM201, Drying Rate of Fabrics: Heated Plate Method TM204, Water Vapor Transmission of Textiles TM213, Vertical Wicking Rate of Textiles: to Specified Times 
PTP5: Resistance & Repellency Deadline to Register: July 15 Samples shipped August TM22, Water Repellency: Spray Test TM35, Water Resistance: Rain Test TM42, Water Resistance: Impact Penetration Test TM118, Oil Repellency: Hydrocarbon Resistance Test TM127, Water Resistance: Hydrostatic Pressure Test 
PTP1: Color Evaluation Deadline to Register: August 15 Samples shipped September EP1, Gray Scale for Color Change EP2, Gray Scale for Staining EP7, Instrumental Assessment of Change in Color of Test Specimen EP12, Instrumental Degree of Staining 
AATCC connects the global textile community to empower an innovative, informed, and sustainable future. Headquartered in the Research Triangle Park of North Carolina, AATCC has provided standards development, testing materials, educational resources, and professional networking to the global textile industry for more than a century.
Technical Contact: Garry Atkinson; Technical Manager; [email protected]