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ISO 6845:1989

Surface active agents — Technical alkane sulfonates — Determination of the mean relative molecular mass of the alkane monosulfonates and the alkane monosulfonate content
6. 7. 1989.

Опште информације

90.93     1. 11. 2024.

ISO

ISO/TC 91

Međunarodni standard

71.100.40  

francuski   engleski  

Kupovina

Objavljen

Jezik na kome želite da primite dokument.

Apstrakt

A test portion is dissolved in ethanol and the solution is acidified. The alkane monosulfonic acids are separated from the alkane disulfonates and sulfate ions by extraction with light petroleum. The light petroleum phase is evaporated and the residue is solved in ethanol. Traces of alkali are removed by means of a cation-exchange column. The eluate is neutralized with carbonate-free sodium hydroxide solution. The sodium alkane monosulfonates so formed are dried and weighed. The mean relative molecular mass of the alkanemonosulfonates and the alkanemonosulfonate content are calculated.

Životni ciklus

PRETHODNO

POVUČEN
ISO 6845:1982

TRENUTNO

OBJAVLJEN
ISO 6845:1989
90.93 Odluka o potvrđivanju standarda
1. 11. 2024.

Nacionalna preuzimanja

SRPS ISO 6845:1992  
ISS

Površinski aktivne materije - Tehnički alkansulfonati - Određivanje srednje molekulske mase alkan-monosulfonata i sadržaja alkanmonosulfonata (identičan sa ISO 6845:1989)

90.93   Odluka o potvrđivanju standarda

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