ISO/R 851:1968

Title missing - Legacy paper document

ISO/R 851:1968

Name:ISO/R 851:1968   Standard name:Title missing - Legacy paper document
Standard number:ISO/R 851:1968   language:English language
Release Date:31-Dec-1967   technical committee:ISO/TMBG - Technical Management Board - groups
Drafting committee:ISO/TMBG - Technical Management Board - groups   ICS number:
UDC.66.63 : 620.1 Ref. No. : ISO/R 851-1968 (E)
IS0
I N T E RN AT I O N A L O R G A N IZ AT 1 O N FOR STAND AR D 1 ZATl O N
IS0 RECOMMENDATION
R 851
SODIUM TRIPOLYPHOSPHATE FOR INDUSTRIAL USE
Measurement of pH
Po tent io metric met hod
1st EDITION
October 1968
COPYRIGHT RESERVED
The copyright of IS0 Recommendations and IS0 Standards
belongs to IS0 Member Bodies. Reproduction of these
documents, in any country, may be authorized therefore only
by the national standards organization of that country, being
a member of ISO.
For each individual country the only valid standard is the national standard of that country.
Printed in Switzerland
Also issued in French and Russian. Copies to be obtained through the national standards organizations.

---------------------- Page: 1 ----------------------
BRIEF HISTORY
The IS0 Recommendation R 85 1, Sodium tripolyphosphate for industrial use - Measurement
of pH - Potentiometric method, was drawn up by Technical Committee ISO/TC 47, Chemistry, the
Secretariat of which is held by the Ente Nazionale Itaiiano di Unificazione (UNI).
Work on this question by the Technical Committee began in 1960 and led, in 1966, to the
adoption of a Draft IS0 Recommendation.
In December 1966, this Draft IS0 Recommendation (No. 11 13) was circulated to all the IS0
Member Bodies for enquiry. It was approved, subject to a few modifications of an editorial nature, by
the following Member Bodies :
Austria
Israel Spain
Belgium Italy Switzerland
Brazil Japan Thailand
Bulgaria
Korea, Dem. P.R. of Turkey
Chile
Korea, Rep. of U.A.R.
Czechoslovakia Netherlands
United Kingdom
France New Zealand
U.S.S.R.
Germany
Poland Yugoslavia
Hungary
Romania
India South Africa, Rep. of
No Member Body opposed the approval of the Draft.
The Draft IS0 Recommendation was then submitted by correspondence to the IS0 Council,
which decided, in October 1968, to accept it as an IS0 RECOMMENDATION.
-2-

---------------------- Page: 2 ----------------------
ISO/R 851-1968 (E
IS0 Recommendation R 851 Octo ber 1968
SODIUM TRIPOLYPHOSPHATE FOR INDUSTRIAL USE
Measurement of pH
Potentiometric method
1. SCOPE
This IS0 Recommendation describes a potentiometric method for the measurement of the pH value
of a solution at a conventional concentration of 10 g/l, of sodium tripolyphosphate for industrial
use.
2. PRINCIPLE
Measurement of the pH of a sodium tripolyphosphate solution at a conventional concentration of
10 g/1 by means of a pH meter fitted with a glass electrode.
3. REAGENTS
Freshly boiled and cooled d
...

  • Relates Information
  • ISO 8130-9:1992

    ISO 8130-9:1992 - Coating powders
    09-28
  • EN 352-2:2020/FprA1

    EN 352-2:2021/oprA1:2023
    09-28
  • IEC TS 61158-4:1999

    IEC TS 61158-4:1999 - Digital data communications for measurement and control - Fieldbus for use in industrial control systems - Part 4: Data Link protocol specification Released:3/24/1999 Isbn:2831847656
    09-28
  • HD 566 S1:1990

    HD 566 S1:1998
    09-28
  • ISO 5131:1982/Amd 1:1992

    ISO 5131:1982/Amd 1:1992
    09-28
  • EN 60598-2-22:1990

    EN 60598-2-22:1996
    09-27
  • ISO 8504-2:1992

    ISO 8504-2:1992 - Preparation of steel substrates before application of paints and related products -- Surface preparation methods
    09-27
  • EN 12165:2024

    prEN 12165:2022
    09-27
  • IEC TS 61158-6:1999

    IEC TS 61158-6:1999 - Digital data communications for measurement and control - Fieldbus for use in industrial control systems - Part 6: Application Layer protocol specification Released:3/24/1999 Isbn:2831847613
    09-27
  • ISO 4252:1992

    ISO 4252:1992 - Agricultural tractors -- Operator's workplace, access and exit -- Dimensions
    09-27