DURHAM, N.C. – The 2026 AATCC Proficiency Testing Program (PTP) is now 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
PTP5: Resistance & Repellency	July 15	August	TM22, TM35, TM42, TM118, TM127
PTP1: Color Evaluation	August 15	September	EP1, EP2, EP7, EP12
PTP7: Moisture Management	June 15	July	TM79, TM195, TM197, TM198, TM199, TM200, TM201, TM204, TM213

PTP2: Fiber Analysis

Deadline to Register: January 15, 2025 

Samples shipped February 2025 

TM20, Fiber Analysis: Qualitative

TM20A, Fiber Analysis: Quantitative

PTP3: Appearance & Physical Properties

Deadline to Register: February 15, 2025

Samples shipped March 2025

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, 2025

Samples shipped April 2025

TM100, Antibacterial Finishes on Textile Materials: Assessment of

TM147, Antibacterial Activity Assessment of Textile Materials: Parallel Streak Method

PTP5: Resistance & Repellency

Deadline to Register: July 15, 2025

Samples shipped August 2025

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, 2025

Samples shipped September 2025

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

PTP7: Moisture Management

Deadline to Register: June 15, 2025

Samples shipped July 2025

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