IS 5748

: 1969

Methods of test for tensile strength of asbestos fibre

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This standard specifies the methods for determining the tensile strength of asbestos fibres. It covers two distinct methods: Method A for longer spinning fibres and Method B for shorter fibres. The document details the necessary apparatus, specimen preparation techniques, testing procedures, and the formula for calculating tensile strength.

Methods of test for tensile strength of asbestos fibre

Quick Reference Values
Test specimen mass (Method A)0.0250 ± 0.0001 g
Number of test specimens10 for each sample
Rate of loadingsuch that the specimen breaks in 10 ± 2 seconds
Key Formulas
Tensile Strength (kg/cm²) = (Breaking Load in kg) / (Cross-sectional Area in cm²)
Practical Notes
This standard has been officially WITHDRAWN by BIS.
Due to severe health risks and widespread bans on asbestos, this standard is obsolete and should not be used.
The methods described require highly specialized equipment which is now rare.