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UDC 661.63 : 620.1 Ref. No. : ISO/R 853-1968 (E)
IS0
I N TERN AT1 O N A L ORGAN I2 AT1 ON FOR STAN DARD IZATl ON
IS0 RECOMMENDATION
c
R 853
SODIUM TRIPOLYPHOSPHATE AND SODIUM PYROPHOSPHATE
FOR INDUSTRIAL USE
Determination of loss on ignition
1st EDITION
October 1968
COPYRIGHï 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.
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BRIEF HISTORY
The IS0 Recommendation R 853, Sodium tripolyphosphate and sodium pyrophosphate for
industrial use - Determination of loss on ignition, was drawn up by Technical Committee ISO/TC 47,
Chemistry, the Secretariat of which is held by the Ente Nazionale Italian0 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 14) 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 Italy Spain
Belgium Japan Switzerland
Brazil Korea, Dem. P.R. of Thailand
Bulgaria Korea, Rep. of Turkey
Czechoslovakia Morocco U.A.R.
France Netherlands United Kingdom
Germany New Zealand U.S.S.R.
Hungary Poland Yugoslavia
India Romania
Israel 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.
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