Ballasts for operation of fluorescent lamps on a.c. 50 c/s supplies
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Auxliaries for operation of fluorescent lamps on a.c. 50 c/s supplies. Capacitors
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Ballasts for tubular fluorescent lamps-Specification for ballasts for use with lamps used in the UK not included in BS 1853 'Tubular fluorescent lamps for general lighting service' Part 1 'Specification for internationally specified lamps'
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Auxliaries for operation of fluorescent lamps on a.c. 50 c/s supplies. Starters
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Methods for the measurement of distortion in bowed and skewed fabrics
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Methods for determination of bow, skew and lengthway distortion in woven and knitted fabrics
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Specifications for lead chromes and zinc chromes for paints
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Cop bases for re-wound solid cops for cotton, spun rayon, woollen and worsted yarns
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Specification for 35-mm magnetic sound recording azimuth alignment test films
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