AATCC research committee has released the 2020 mid-year supplement in the AATCC Technical Manual which includes nine revised test methods, one editorially revised test method, and one revised monograph for a total of eleven approved standards. AATCC, based in US, is the leading not-for-profit association, serving textile professionals since 1921.

The documents are available only as downloadable PDFs for 2020. The 2020 mid-year supplement will be discontinued at the end of 2020 and all standards contained therein will appear in the 2021 AATCC Technical Manual.

In accordance with AATCC M13, Rules of Procedure for AATCC Test Method and Technology Committees, all technical changes are unanimously approved by the responsible research committee and the Technical Committee on Research (TCR) before publication, according to a press release by AATCC.

AATCC TM16.3-2020 Test Method for Colorfastness to Light: Xenon-Arc is revised to update Options 1, 2, and 3 flow charts. AATCC TM26-2020 Test Method for Ageing of Sulfur-Dyed Textiles: Accelerated is revised to clarify and align with prescribed AATCC style guidelines. AATCC TM94-2020 Test Method for Finishes in Textiles: Identification is revised to update the spectra, edit the text in existing sections, and to add new sections for clarity.

AATCC TM97-2020 Test Method for Extractable Content of Textiles is revised to clarify safety requirements. AATCC TM112-2020 Test Method for Formaldehyde Release from Fabric, Determination of Sealed Jar Method is revised to update multiple sections for clarity and alignment to style guidelines. AATCC TM133-2020 Test Method for Colorfastness to Heat: Hot Pressing is revised to align with prescribed AATCC style guidelines.

AATCC TM169-2020 Test Method for Weather Resistance of Textiles: Xenon Lamp Exposure is revised to add references standards, added Appendix B, and various editorial changes. AATCC TM183-2020 Test Method for Transmittance or Blocking of Erythemally Weighted Ultraviolet Radiation through Fabrics is revised to add references to verification fabric and UPF compilation, and to align format with AATCC style guidelines.

AATCC TM195-2017(e3) Test Method for Extractable Content of Textiles is editorially revised to reference LP1 and LP2 instead of M6 which has been removed. AATCC TM206-2020 Test Method for Free and Hydrolyzed Formaldehyde: Water Extraction is revised to update multiple sections for clarity. AATCC M12-2020 Style Guide for Test Methods and Procedures is revised to include Designation and History sections, along with various updates and clarifications.

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