Business Telecommunications (BT) - Open Network Provision (ONP) technical requirements - 2048 kbit/s digital unstructured leased line (D2048U) - Attachment requirements for terminal equipment interface

Business Tele Communications (BTC) - 64 kbit/s digital unrestricted leased line with octet integrity (D64U) - Attachment requirements for terminal equipment interface

Respiratory protective devices - Fresh air hose breathing apparatus for use with full face mask, half mask or mouthpiece assembly - Requirements, testing, marking

Methods of measurement for radio transmitters - Part 8: Performance characteristics of vestigal-sideband demodulators used for testing television transmitters and transposers

Direct acting recording electrical measuring instruments and their accessories

Testing of concrete - Hardened concrete - Determination of the amount of silica fume in clumps

Roofing products from metal sheet - Specification for fully supported roofing products of zinc sheet

Specification for data logging and monitoring of lifts, escalators and passenger conveyors