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ASTM D 6061 : 2001 : R2012 : EDT 1

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Practice for Evaluating the Performance of Respirable Aerosol Samplers
Available format(s)

Hardcopy , PDF

Superseded date

01-08-2019

Language(s)

English

Published date

04-01-2012

CONTAINED IN VOL. 11.03, 2015 Describes the evaluating of the performance of personal samplers of non-fibrous respirable aerosol.

1.1 This practice covers the evaluation of the performance of personal samplers of non-fibrous respirable aerosol. The samplers are assessed relative to a specific respirable sampling convention. The convention is one of several that identify specific particle size fractions for assessing health effects of airborne particles. When a health effects assessment has been based on a specific convention it is appropriate to use that same convention for setting permissible exposure limits in the workplace and ambient environment and for monitoring compliance. The conventions, which define inhalable, thoracic, and respirable aerosol sampler ideals, have now been adopted by the International Standards Organization (ISO 7708), the Comité Européen de Normalisation (CEN Standard EN 481), and the American Conference of Governmental Industrial Hygienists (ACGIH, Ref (1)), developed (2) in part from health-effects studies reviewed in Ref (3) and in part as a compromise between definitions proposed in Refs (3,4).

1.2 This practice is complementary to Test Method D4532, which specifies a particular instrument, the 10-mm cyclone. The sampler evaluation procedures presented in this practice have been applied in the testing of the 10-mm cyclone as well as the Higgins-Dewell cyclone. , Details on the evaluation have been published (5-7) and can be incorporated into revisions of Test Method D4532.

1.3 A central aim of this practice is to provide information required for characterizing the uncertainty of concentration estimates from samples taken by candidate samplers. For this purpose, sampling accuracy data from the performance tests given here can be combined with information as to analytical and sampling pump uncertainty obtained externally. The practice applies principles of ISO GUM, expanded to cover situations common in occupational hygiene measurement, where the measurand varies markedly in both time and space. A general approach (8) for dealing with this situation relates to the theory of tolerance intervals and may be summarized as follows: Sampling/analytical methods undergo extensive evaluations and are subsequently applied without re-evaluation at each measurement, while taking precautions (for example, through a quality assurance program) that the method remains stable. Measurement uncertainty is then characterized by specifying the evaluation confidence (for example, 95 %) that confidence intervals determined by measurements bracket measurand values at better than a given rate (for example, 95 %). Moreover, the systematic difference between candidate and idealized aerosol samplers can be expressed as a relative bias, which has proven to be a useful concept and is included in the specification of accuracy (3.2.9-3.2.10).

1.4 Units of the International System of Units (SI) are used throughout this practice and should be regarded as standard.

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Committee
D 22
DocumentType
Standard Practice
Pages
9
ProductNote
Reconfirmed EDT 1
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

ASTM D 7948 : 2014 : EDT 1 Standard Test Method for Measurement of Respirable Crystalline Silica in Workplace Air by Infrared Spectrometry
ASTM D 1356 : 2017 Standard Terminology Relating to Sampling and Analysis of Atmospheres

ISO 7708:1995 Air quality — Particle size fraction definitions for health-related sampling
ASTM D 4532 : 2015 : REDLINE Standard Test Method for Respirable Dust in Workplace Atmospheres Using Cyclone Samplers
EN 481:1993 Workplace atmospheres - Size fraction definitions for measurement of airborne particles
EN 13205:2001 Workplace atmospheres - Assessment of performance of instruments for measurement of airborne particle concentrations
EN 1232:1997 Workplace atmospheres - Pumps for personal sampling of chemical agents - Requirements and test methods
ISO/IEC Guide 98-3:2008 Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)

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