ANNEXU.K.DETERMINATION OF DICHLOROMETHANE AND 1,1,1-TRICHLOROETHANE
IDENTIFICATION AND DETERMINATION OF MERCAPTOACETIC ACID IN HAIR-WAVING, HAIR-STRAIGHTENING AND DEPILATORY PRODUCTSU.K.
4.IDENTIFICATIONU.K.
4.2.Identification by thin-layer chromatographyU.K.
4.2.1. Reagents U.K.
4.2.1.4.3-mercaptopropionic acid, 98 % minimum purity assayed by iodometry.U.K.