0 Stavka
Moj nalog
Telefon: (011) 7541-421, 3409-301, 3409-335, 6547-293, 3409-310
E-mail: Prodaja standarda: prodaja@iss.rs Seminari, obuke: iss-edukacija@iss.rs Informacije o standardima: infocentar@iss.rs
Stevana Brakusa 2, 11030 Beograd
Glavni meni

ISO 685:1975

Analysis of soaps — Determination of total alkali content and total fatty matter content
1. 10. 1975.
95.99   Povučen   28. 2. 2020.

Опште информације

95.99     28. 2. 2020.

ISO

ISO/TC 91

Međunarodni standard

71.100.40  

francuski   engleski  

Kupovina

Povučen

Jezik na kome želite da primite dokument.

Apstrakt

The method consists in decomposition of the soap by a known volume of standard volumetric mineral acid solution, extraction and separation of the liberated fatty matter with light petroleum and determination of a total alkali content by titration of the excess of acid contained in the aqueous phase with a standard volumetric sodium hydroxide solution. After evaporation of the light petroleum from the extract, dissolution of the residue in ethanol and neutralization of the fatty acids with a standard volumetric potassium hydroxide solution. Evaporation of the ethanol and weighing of the soap formed to determine the total fatty matter content.

Životni ciklus

PRETHODNO

POVUČEN
ISO/R 455:1965

TRENUTNO

POVUČEN
ISO 685:1975
95.99 Povučen
28. 2. 2020.

REVIDIRAN OD

OBJAVLJEN
ISO 685:2020

Nacionalna preuzimanja

SRPS ISO 685:1992  
ISS

Metode ispitivanja sapuna - Određivanje sadržaja ukupnih alkalija i sadržaja ukupnih masnih materija (identičan sa ISO 685:1975)

95.99   Povučen

H091 Saznaj više