BS EN 481:1993
Workplace Atmospheres - Size Fraction Definitions for Measurement of Airborne Particles is part of the Occupational Health & Safety Information Service's online subscription. Bringing you a comprehensive selection of legislation, regulations, guidance, standards, including BSI and best practice which is
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Defines sampling conventions for particle size fractions for inhalable, inspirable, thoracic and respirable fractions.
British Standards Institution
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