Characterization of waste. Sampling of waste materials - Guidance on procedures for sub-sampling in the field Ingestion-build-209418 It also includes requirements for

It  also includes requirements for individual devices specified for use in humidification systems such as heated breathing tubes (heated-wire breathing tubes) and devices intended to control these heated breathing tubes (heated breathing tube controllers)

BS 3958-5 is the fifth part of the series that specifies composition

strip (see BS 2920) or wire in the unfabricated form

this standard applies only to those that are manufactured by machining of a hole in a forged or rolled solid axle

Characterization of waste. Sampling of waste materials - Guidance on procedures for sub-sampling in the field Ingestion-build-209418 It also includes requirements for