Standard Practices for Verification of Displacement Measuring Systems and Devices Used in Material Testing Machines Ingestion-build-109673 BS 3251 discusses fire hydrants

BS 3251 discusses fire hydrants and emergency water supplies

the object of a declaration of conformity can be a product

BS EN 9300-002 provides you with requirements for standardized processes (and associated technologies) that ensure product data is retrievable and usable for as long as needed

This includes the specialized clean room environment in which semiconductors are fabricated as well as the specialized nature of the semiconductor fabrication equipment itself

BS EN 61300 is a series on fibre optic interconnect devices and passive components

Standard Practices for Verification of Displacement Measuring Systems and Devices Used in Material Testing Machines Ingestion-build-109673 BS 3251 discusses fire hydrants