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PDF Standards BS 1542:1982

Specification for equipment for eye, face and neck protection against non-ionizing radiation arising during welding and similar operations
standard by BSI Group, 12/31/1982

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BS

PDF Standards BS 1875:1952

Specification for bi-pin lamp-holders for tubular fluorescent lamps for use in circuits the declared voltage of which does not exceed 250 volts
standard by BSI Group, 08/31/1979

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