BS December 7, 2019 BS 4727-1:GROUP 04:1986 Click here to purchase Product Details Published: 02/28/1986 ISBN(s): 0580149692 Number of Pages: 34 File Size: 1 file , 3 MB Product Code(s): 00153622, 00153622, 00153622 Note: This product is unavailable in United Kingdom You May Also Like BS BS 5775-0:1982 BS BS CWA 13699:1999