Specification. Intrinsically-safe transformers primarily for bell-signalling circuits
Document status: Active
Specification for equipment for eye, face and neck protection against non-ionizing radiation arising during welding and similar operations
Document status: Active
Flameproof industrial clothing (materials and design)
Document status: Active
Specification for open bottomed taper plug valves for 1st, 2nd and 3rd family gases up to 200 mbar
Document status: Active
