AS 2985-1987

1 - AS 2985-1987 WORKPLACE ATMOSPHERES - METHOD FOR SAMPLING AND GRAVIMETRIC DETERMINATION OF RESPIRABLE DUST
4 - PREFACE
4 - CONTENTS
5 - 1 SCOPE.
5 - 2 APPLICATION.
5 - 3 REFERENCED DOCUMENTS.
5 - 4 DEFINITIONS.
5 - 4.1 Breathing zone
5 - 4.2 Equivalent aerodynamic diameter (EAD)
5 - 4.3 Pulsation ratio
5 - 4.4 Respirable dust
5 - 5 PRINCIPLE.
5 - 6 APPARATUS.
5 - 6.1 Sampling systems.
5 - 6.2 Personal sampling.
6 - 6.3 Filter.
6 - 6.4 Sampling pumps.
6 - 6.5 Secondary flowmeter.
6 - 6.6 Timing device.
6 - 6.7 Microbalance.
6 - 6.8 Static eliminator.
7 - 7 CALIBRATION.
7 - 8 PROCEDURE.
7 - 8.1 Filter pre-weighing.
7 - 8.2 Sampling.
7 - 8.3 Transporting filters after sampling.
7 - 8.4 Weighing used filters.
7 - 9 CALCULATIONS.
8 - 10 PRECISION, ACCURACY AND DETECTION LIMIT
8 - 11 REPORTING OF RESULTS.
8 - BIBLIOGRAPHY
9 - APPENDIX A - CALIBRATION OF SECONDARY FLOWMETER
9 - A1 SCOPE.
9 - A2 APPARATUS.
9 - A3 PROCEDURE.
10 - A4 CALIBRATION RECORD.

Sets out a gravimetric method for the collection and determination of respirable dust (as defined by British Medical Research Council). The procedure can be used to assess personal exposure to sampling in a worker's breathing zone.

This Standard sets out a method for the collection and gravimetric determination of respirable dust in workplace atmospheres. This method does not consider the measurement of 'inspirable' dust.

Under Revision see DR 02321