Standard calibration and maintenance procedures for wet test meters and coal mine respirable dust samplers (supersedes IR 1073)
The Federal Mine Safety and Health Act of 1977 requires that the average concentration of respirable coal mine dust be measured with a device approved by the Secretary of Labor and the Secretary of Health, Education, and Welfare. Title 30, Code of Federal Regulations, Part 70, specifies that approved sampling device be calibrated at a flowrate of 2.0 liters per minute or at a different flowrate as prescribed by the Secretary of Labor and the Secretary of Health, Education, and Welfare for the particular device. This informational report presents the standard procedures used by the Mine Safety and Health Administration (MSHA) for calibration of currently approved personal samplers and associated equipment and maintenance procedures for the equpiment. Currently there are five samplers approved by the Secretary of Labor and the Secretary of Health, Education, and Welfare. They are the Bendix 3900 Micronair, Bendix BDX 30/31 and 44, Bendix C-115, and the MSA model G Monitaire. These samplers use similar sampling heads and have an operational flowrate of 2.0 liters per minute. The purpose of this report is to make standard procedures for calibration available to all MSHA and industry personnel that use these samplers in their daily routines. Use of standard calibration procedures will reduce or eliminate measurement differences resulting from different calibration procedures.
- Research Organization:
- Mine Safety and Health Administration, Arlington, VA (USA)
- OSTI ID:
- 5946976
- Report Number(s):
- MSHA/IR-1121; ON: DE83902838
- Country of Publication:
- United States
- Language:
- English
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