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UNI ISO 127 : 2012

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

RUBBER, NATURAL LATEX CONCENTRATE - DETERMINATION OF KOH NUMBER
Superseded date

09-17-2022

Published date

01-01-2012

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Reagents
5 Apparatus
6 Sampling
7 Procedure
8 Expression of results
9 Precision
10 Test report
Annex A (informative) - Determination of formaldehyde
Annex B (informative) - Example of a typical titration and
        calculation of the end-point
Annex C (informative) - Precision statement
Bibliography

Defines a method for the determination of the KOH number of natural rubber latex concentrate which is preserved wholly or in part with ammonia.

DevelopmentNote
Supersedes UNI 5256. (07/2008)
DocumentType
Standard
PublisherName
Ente Nazionale Italiano di Unificazione (UNI)
Status
Superseded
SupersededBy
Supersedes

Standards Relationship
ISO 127:2012 Identical

ISO 124:2014 Latex, rubber — Determination of total solids content
ISO 1802:1992 Natural rubber latex concentrate Determination of boric acid content
ISO 1382:2012 Rubber Vocabulary
ISO 125:2011 Natural rubber latex concentrate Determination of alkalinity
ISO/TR 9272:2005 Rubber and rubber products Determination of precision for test method standards
ISO 976:2013 Rubber and plastics — Polymer dispersions and rubber latices — Determination of pH
ISO 123:2001 Rubber latex Sampling

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