BS ISO 16486-4. Plastics piping systems for the supply of gaseous fuels. Unplasticized polyamide (PA-U) piping systems with fusion jointing and mechanical jointing. Part 4. Valves shop-only 1 provides a ready means

1 provides a ready means of calculating the approximate millimetre equivalents of the inch dimensions

Whilst much of the background information provided is also relevant to geotechnical investigations there may be important additional requirements or differences in approach for determining relevant physical parameters

BS EN 2436-004 provides users guidance on physical and chemical characteristics of primers including

corrosion resistance or ability to withstand temperatures above 300 degrees C or below 50 degrees C

BS ISO 16486-4. Plastics piping systems for the supply of gaseous fuels. Unplasticized polyamide (PA-U) piping systems with fusion jointing and mechanical jointing. Part 4. Valves shop-only 1 provides a ready means