เคมี
เอกสารมาตรฐาน
สหรัฐอเมริกา
AOCS
Ea 3-58
SURPLUS Total and Organic Residue at 175° C
1973
3
665.0288 AOCS 3th ed. Ref. (Loose-Leaves FL2)
This method determines the material which is not volatilized in four hours at 175° C. minus any glycerol remaining. The inorganic ash is included and must be subtracted from the total residue to obtain the organic residue. Applicable to crude glycerine of the saponification or hydrolyzed types.