BS ISO 5796:2000
Current
The latest, up-to-date edition.
Rubber compounding ingredients. Natural calcium carbonate. Test methods
Hardcopy , PDF
English
15-11-2000
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Foreword
1 Scope
2 Normative references
3 Sampling
4 Methods of test
5 Test report
Annex A (normative) Determination of total copper content -
Atomic absorption method
Annex B (normative) Determination of total manganese content
- Atomic absorption method
Annex C (normative) Determination of total iron content -
Atomic absorption method
Annex D (informative) Classification of natural calcium
carbonate and typical physical and
chemical properties
Defines methods for evaluating natural calcium carbonate (limestone or chalk) ground to a dry powder for use in the rubber industry. NOTE 1: Classification of natural calcium carbonate according to fineness and chemical purity and typical physical and chemical properties for use in the rubber industry are given in informative annex D. NOTE 2: Does not cover calcium carbonates prepared by precipitation from solution. Two sets of analytical methods are listed: In the body of the text (4.8.2 to 4.8.4), the traditional spectrophotometric methods are given; these are obsolescent, time-consuming and use a chlorinated solvent. It is recommended that these methods are phased out and replaced by the atomic absorption methods listed in annexes A, B and C.
| Committee |
PRI/50
|
| DevelopmentNote |
Supersedes 96/122513 DC. (07/2005) Reviewed and confirmed by BSI, August 2005. (08/2005)
|
| DocumentType |
Standard
|
| Pages |
28
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
1.1 This International Standard specifies the methods to be used for the evaluation of natural calcium carbonate (chalk or limestone) ground to a dry powder for use in the rubber industry.
NOTE1 Classification of natural calcium carbonate according to fineness and chemical purity and typical physical and chemical properties for use in the rubber industry are given in informative annexD.
NOTE2 This International Standard does not cover calcium carbonates prepared by precipitation from solution.
1.2 There are two sets of analytical methods listed in this International Standard. In the body of the text (4.8.2 to 4.8.4), the traditional spectrophotometric methods are given; these are obsolescent, time-consuming and use a chlorinated solvent. It is recommended that these methods be phased out and replaced by the atomic absorption methods listed in annexesA, B and C.
| Standards | Relationship |
| ISO 5796:2000 | Identical |
| ISO 4793:1980 | Laboratory sintered (fritted) filters — Porosity grading, classification and designation |
| ISO 3262-1:1997 | Extenders for paints — Specifications and methods of test — Part 1: Introduction and general test methods |
| ISO 565:1990 | Test sieves — Metal wire cloth, perforated metal plate and electroformed sheet — Nominal sizes of openings |
| ISO 787-10:1993 | General methods of test for pigments and extenders — Part 10: Determination of density — Pyknometer method |
| ISO 15528:2013 | Paints, varnishes and raw materials for paints and varnishes Sampling |
| ISO 787-2:1981 | General methods of test for pigments and extenders Part 2: Determination of matter volatile at 105 degrees C |
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