DIN ISO 976:2008
Rubber and plastics - Polymer dispersions and rubber latices - Determination of pH (ISO 976:1996 + Amd. 1:2006);English version of DIN ISO 976:2008-07
- Standard No.
- DIN ISO 976:2008
- Release Date
- 2008
- Published By
- German Institute for Standardization
- Status
- Replace By
- DIN ISO 976:2016
- Latest
- DIN ISO 976:2016-12
- Replace
- DIN ISO 976:1998 DIN ISO 976:2006
- Scope
- This International Standard specifies a method for the determination of the pH of polymer dispersions and rubber latices (natural and synthetic) by means of a pH-meter equipped with a combined glass and silver reference electrode. The method is also suitable for prevulcanized latex and compounds containing polymer dispersions or rubber latices, including adhesives. NOTE 1 The accuracy of the method decreases at pH values above 11. Users should note that this edition of ISO 976 not only represents a revision of the previous edition, but also supersedes ISO 1148:1980, Plastics -- Aqueous dispersions of polymers and copolymers -- Determi- nation of pH. This edition represents a harmonized version of the two standards. One of the major changes in this new edition of ISO 976 is the use of a combined electrode rather than the separate electrodes used in the previous edition, the combined electrode being considered superior to the separate electrodes since the latter are prone to latex deposits blocking the electro- lyte iunction, thus adversely affecting repeatability. Although older-type twin electrodes are capable of giving accurate results, they should be progressively replaced because of this problem of cleaning and repeatability.
DIN ISO 976:2008 Referenced Document
- ISO 123:2001 Rubber latex - Sampling
- ISO 15528:2000 Paints, varnishes and raw materials for paints and varnishes - Sampling
- ISO 3696:1987 Water for analytical laboratory use; Specification and test methods
- ISO/TR 9272 Rubber and rubber products - Determination of precision for test method standards
DIN ISO 976:2008 history
- 2016 DIN ISO 976:2016-12 Rubber and plastics - Polymer dispersions and rubber latices - Determination of pH (ISO 976:2013)
- 2016 DIN ISO 976:2016 Rubber and plastics - Polymer dispersions and rubber latices - Determination of pH (ISO 976:2013)
- 2008 DIN ISO 976:2008 Rubber and plastics - Polymer dispersions and rubber latices - Determination of pH (ISO 976:1996 + Amd. 1:2006);English version of DIN ISO 976:2008-07
- 0000 DIN ISO 976:2006
- 0000 DIN ISO 976:1998
