... etc.. 5.SGS test Temperature sensitive pigment / Thermochromic pigment / color changing with temperature pigment/ heat sensitive pigmentColor changes according ... / Chinese red/ Red/Yellow / Dark blue/ Grass Green/ Black/ Green Standard temperatures: 13/15/ 17/22/ 31/ 33/ ... Grass Green, orange, yellow, purple, red, purple, blue, black, golden yellow, skyblue,etc...Standard temperatures: 13/15/ 17/ ...