Cite
APA Citation
Institution,, B. S. (2021). BS EN ISO 16486-4. Plastics piping systems for the supply of gaseous fuels. Unplasticized polyamide (PA-U) piping systems with fusion jointing and mechanical jointing.. London : British Standards Institution. http://access.bl.uk/ark:/81055/vdc_100117719311.0x000001