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Document ID (ISN)25592
CIS number 76-1259
ISSN - Serial title 0002-8894 - American Industrial Hygiene Association Journal
Year 1976
Convention or series no.
Author(s) Treaftis H.N., Tomb T.F., Carden H.F.
Title Effect of altitude on personal respirable dust sampler calibration.
Bibliographic information Mar. 1976, Vol.37, No.3, p.133-138. Illus. 6 ref.
Abstract Studies on the effect of altitude on 3 personal samplers (MSA Model G, Bendix 3900 and Bendix C115) performed in a vacuum chamber simulating altitudes of 800-16,000 feet (240-4,800m) are described. Pump performance and calibration of the flow-rate meters were both affected by altitude changes. In all 3 cases, the flow rate of a pump unit calibrated for 2l/min at 800 feet increased by approx. 5% at 12,000 feet if not adjusted. If at 12,000 feet the flow was adjusted so that the flow-rate meter float was at the original calibration mark, flow rate increased by 10-23%. Equations for the empirical relations so derived are given for each sampler.
Descriptors (primary) personal sampling; respirable dust; calibration; high altitude; flowrate control
Descriptors (secondary) low-pressure chamber tests; equipment testing; mathematical analysis; accuracy
Document type -
Subject(s) Dust, aerosols and related diseases
Broad subject area(s)
Browse category(ies) Hypobaric pressure