BS 1521:1972
Current
The latest, up-to-date edition.
Specification for waterproof building papers
Hardcopy , PDF
English
05-19-1972
Foreword
Specification
1. Scope
2. General
3. Class A papers for building purposes
4. Class B papers for temporary purposes
5. Selection of rolls for sampling
6. Selection of test specimens from roll samples
7. Marking
Appendices
A. Tensile strength (wet)
B. Bursting strength (wet)
C. Resistance to water penetration
Tables
1. Tensile strength (dry)
2. Tensile strength (wet)
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