Specification for gas meter unions and adaptors1 Scope This British Standard specifies requirements and test methods for unions and adaptors for the installation of low pressure gas meters. It is applicable to unions and adaptors for gas meters for use with 1st, 2nd and 3rd family gases at temperatures between 20 C and +60 C, up to a maximum operating pressure of 75 mbar 1) and a maximum incidental pressure of 200 mbar. The gas tightness of the gas meter unions and adaptors is also specified. NOTE

Chemical disinfectants and antiseptics should always be used responsibly

Materials producers

Combination of SRP/CS to achieve overall PL

3 Protection of the line side circuit of the generator

and precautions to be followed during the design of earth electrodes to ensure safety of personnel and earth electrodes and prevent any significant impact they may exert on d

and by cross-linking are of

Safety of children's sleep bags

BS 5925 gives recommendations on the principles which should be observed when designing for the natural ventilation of buildings for human occupation

) shall be determined by supplementary tests to confirm that the requirements of BS EN 2436-004 are met

BS EN 1395-7 should be used in addition to EN 1395-2 when carrying out acceptance inspection for flame and/or HVOF (high velocity oxygen-fuel) spraying equipment

when they are used as intended and under the conditions foreseen by the manufacturer (see clause 4)

A general principle for the application of BS EN ISO 22442 is that it is advisable to give due consideration to the requirements and recommendations contained in all three parts of the standard