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ISO 6835:1981

Surface active agents -- Washing powders -- Determination of total boron content -- Titrimetric method

General information

Valid from 01.04.1981
ICS Groups
71.100.40 Surface active agents
Directives or regulations
None

Standard history

Status
Date
Type
Name
01.04.1981
Main
ISO 6835:1981
From an aqueous aolution of a sample the phosphates are removed by passing the solution over an ion-exchange resin. Then a boric acid mannitol complex is formed and titrated.

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Standard monitoring
English (PDF 372 KB)

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Standards designation

EVS Estonian standard
EN European standard (published by an CEN or CENELEC)
EN ISO International standard adopted as an European standard
ISO International Organization for Standardization’s standard
IEC International Electrotechnical Commission’s standard
HD CENELEC’s harmonisation document
   
EVS-EN European standard implemented in Estonia
EVS-EN ISO International standard adopted in Europe and implemented in Estonia
EVS-EN ISO/IEC International standard/International electrotechnical standard adopted in Europe and implemented in Estonia
EVS-IEC International electrotechnical standard implemented in Estonia
EVS-ISO International standard implemented in Estonia
   
A, AMD amedment
+A a full standard plus the amendment
/A only amendment
COR, AC corrigendum
+COR a full standard plus the corrigendum
NA national annex
+NA a full standard plus the national annex
/NA only national annex
TS technical specification
TR technical report
CWA agreement, developed by a CEN or CENELEC
prEVS-EN (etc) draft standard
   
et the standard is in Estonian only
en the standard is in English only
et-en the standard is in Parallel text Estonian-English