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Labs can now register for all 2025 American Association of Textile Chemists and Colorists (AATCC) Proficiency Testing Programs (PTP). Labs can add PTP registration(s) to their cart along with quality control materials, standards and other items. The first registration deadline is Jan. 15, 2025, for the February Fiber Analysis round.
Seven AATCC programs cover test methods and evaluation procedures for antibacterial properties, appearance and physical properties, color evaluation, colorfastness, fiber analysis, moisture management, and resistance and repellency.
How it works:
- Labs register for one or more PTPs.
- AATCC sends samples, instructions and data sheets to participating labs once per year.
- Labs have approximately one month to complete testing and submit results by email.
- AATCC distributes a report to participating labs with a confidential lab code.
- Each lab receives a certificate of participation.
What’s new
Each program will be offered only once during the calendar year. A complete schedule is posted online.
The registration and payment deadline for all PTPs is the 15th of the month prior to sample distribution. No registrations can be accepted after the deadline to ensure fair and timely processing for all participants.
PTP1: Color Evaluation
Deadline to Register: Aug. 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
PTP2: Fiber Analysis
Deadline to Register: Jan. 15, 2025
Samples shipped February 2025
- TM20, Fiber Analysis: Qualitative
- TM20A, Fiber Analysis: Quantitative
PTP3: Appearance & Physical Properties
Deadline to Register: Feb. 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
PTP6: Colorfastness
Deadline to Register: May 15, 2025
Samples shipped June 2025
- TM8, Colorfastness to Crocking: Crockmeter Method
- TM15, Colorfastness to Perspiration
- TM16.3, Colorfastness to Light: Xenon-Arc
- TM61, Colorfastness to Laundering: Accelerated
- TM107, Colorfastness to Water
- TM133, Colorfastness to Heat: Hot Pressing
- TM162, Colorfastness to Water: Chlorinated Pool
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