Test methods of surfactants, catalog, forestry industry standard, Chinese standards
LY/T 1082 Test method for analysis of vegetable tannin extracts
LY/T 1083 Test method for analysis of raw materials of vegetable tannin extracts
LY/T 1642 Test method for analysis of tannic acid
LY/T 1644 Test method for analysis of gallic acid
LY/T 2400 Color determination method of light-colored rosin and related products(platinum-cobalt scale)
LY/T 2561 Indentification of industrial salt adulterant in oleoresin
LY/T 2861 Analytical method of rosin acid by capillary gas chromatography