ISO 5796:2000
ISO 5796:2000

ISO 5796:2000

September 2000
International standard Current

Rubber compounding ingredients - Natural calcium carbonate - Test methods

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.NOTE 1 Classification of natural calcium carbonate according to fineness and chemical purity and typical physical andchemical properties for use in the rubber industry are given in informative annex D.NOTE 2 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 to4.8.4), the traditional spectrophotometric methods are given; these are obsolescent, time-consuming and use achlorinated solvent. It is recommended that these methods be phased out and replaced by the atomic absorptionmethods listed in annexes A, B and C.

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International ISO standards

Publication date

September 2000

Reference

ISO 5796:2000

ICS Codes

83.040.20   Rubber compounding ingredients
Sumary
Rubber compounding ingredients - Natural calcium carbonate - Test methods

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.

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 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 annexes A, B and C.

Replaced standards (1)
ISO 5796:1990
ISO 5796:1990
December 1990
International standard Cancelled
Rubber commpounding ingredients. Natural calcium carbonate. Test methods.

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