Respiratory equipment. Breathing gas demand regulator used for diving to depths greater than 50 metres. Requirements and test methods LONG_TITLE

Respiratory equipment. Breathing gas demand regulator used for diving to depths greater than 50 metres. Requirements and test methods LONG_TITLEWhat is this standard about? The efficiency of breathing demand regulators is fundamental to the safe use of many types of underwater breathing apparatus. However until now, no standard covered demand regulators in self contained diving apparatus to depths greater than 50 metres; or demand regulators in umbilical supplied apparatus beyond 60 metres. Given that deeper dives now take place more frequently, BS 8547 was written to meet the clear need for

6 Specification of concrete

The hazard of dust layer ignition is also described

BS 7177 is a British Standard which specifies requirements for the resistance to ignition of mattresses

The dry mass of aggregates filling a specified container is determined by weighing and the corresponding loose bulk density is calculated

semi-detached and terraced houses and flats (with not more than four self-contained dwelling units per floor accessible from one staircase)

Freestanding or built-in grills

particular organization

in-service maintenance

Failure modes can be prioritized to support decisions about treatment

BS EN 14303 specifies the requirements for factory made mineral wool products

Note 1: The chemical composition or heat treatment

BS ISO/IEC 26514 supports the interest of software users in consistent