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Mains communications systems. Protocol and data integrity and interfaces. Original standard PD 6620-1998 in PDF full version. Additional info + preview on request

Document status: Withdrawn

Guidance on the new European test method standards for thermal insulation materials. Original standard PD 6621-1998 in PDF full version. Additional info + preview on request

Document status: Withdrawn

Designation systems for steel - Additional symbols. Original standard PD 6622-1998 (CR 10260-1998) in PDF full version. Additional info + preview on request

Document status: Active

PUBLISHED DOCUMENT Biotechnology - Laboratories for research, development and analysis - Guidance on the selection of equipment needed for biotechnology laboratories according to the degree of hazard. Original standard PD 6632-1998 (CR 12739-1998) in PDF full version. Additional info + preview on request

Document status: Active

Gas welding equipment - Industrial manual and machine oxygen-fuel gases blowpipes for flame heating and allied processes. Original standard PD 6633-1998 (CR 13259-1998) in PDF full version. Additional info + preview on request

Document status: Active

Personal protective equipment. Lifejackets and buoyancy aids. Guide for selection and use. Original standard PD 6636-1998 (CR 13033-1997) in PDF full version. Additional info + preview on request

Document status: Active