GB/T 3922-2013 Translated English of Chinese Standard. (GBT 3922-2013, GB/T3922-2013, GBT3922-2013): Textiles - Tests for colour fastness - Colour fastness to perspiration [Buy--download True-PDF in 3-second: https://play.google.com/books > Sign in > This BOOK > "3-dots" > Export > Save as "*.pdf"]
https://www.chinesestandard.net
Business & investing