ISO 1388-2:1981
ISO 1388-3:1981
ISO 1388-4:1981
ISO 1388-5:1981
ISO 1388-6:1981
ISO 1388-7:1981
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ISO 1388-9:1981
Ethanol for industrial use — Methods of test — Part 9: Determination of esters content — Titrimetric method after saponification
Automatically translated name:
Ethanol for industrial use -- Methods of test -- Part 9: Determination of esters content -- Titrimetric method after saponification
STANDARD published on 1.12.1981
The information about the standard:
Designation standards: ISO 1388-9:1981
Publication date standards: 1.12.1981
SKU: NS-425013
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: International technical standard
Category: Technical standards ISO
The category - similar standards:
Annotation of standard text ISO 1388-9:1981 :
Description / Abstract: The method is applicable to products having esters contents in the range 0.005 % (m/m) to 0.15 % (m/m). The principle consists in the saponification of esters present in a test portion by boiling with excess standard volumetric sodium hydroxide solution; determination of the residual sodium hydroxide, and hence the amount used for saponification, by titration with standard volumetric hydrochloric acid solution in the presence of phenolphthalein as indicator. - International Standards ISO 1388/1 to ISO 1377/12 cancel and replace ISO Recommendation R 1388-1970 of which they constitute a technical revision.
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