2008GB/T 14455.7-2008 Determination of ester value and evaluation of free alcohol and total alcohol content after acetylation of fragrances
1970ZB Y 41002-1986 Determination of ester value and evaluation of free and total alcohol content of essential oils after acylation
ZB Y 41002-1986 Determination of ester value and evaluation of free and total alcohol content of essential oils after acylation was changed to GB/T 14455.7-2008 Determination of ester value and evaluation of free alcohol and total alcohol content after acetylation of fragrances.