About this document
BS 1521 1972 by Omar Bahgat is a document available to read on EtoBox.
BS 1521:1972 is a British Standard that specifies the quality, workmanship, dimensions, and performance requirements for two classes of waterproof building papers, Class A for building purposes and Class B for temporary purposes. Each class is divided into grades and types, with specific tensile and bursting strength requirements outlined in tables. The standard aims to ensure that the finished products conform to minimum requirements without detailing constituent materials.
- Author
- Omar Bahgat
- Language
- EN