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BS ISO 16740:2005

Current

Current

The latest, up-to-date edition.

Workplace air. Determination of hexavalent chromium in airborne particulate matter. Method by ion chromatography and spectrophotometric measurement using diphenyl carbazide

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

02-24-2005

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
   3.1 General definitions
   3.2 Particle size fraction definitions
   3.3 Sampling definitions
   3.4 Analytical definitions
   3.5 Statistical terms
4 Principle
5 Reactions
6 Requirement
7 Reagents
8 Apparatus
   8.1 Sampling equipment
   8.2 Laboratory apparatus
9 Occupational exposure assessment
   9.1 General
   9.2 Personal sampling
   9.3 Static sampling
   9.4 Selection of measurement conditions and measurement
        pattern
10 Sampling method
   10.1 Preliminary considerations
   10.2 Preparation for sampling
   10.3 Sampling position
   10.4 Collection of samples
   10.5 Transportation
11 Analysis
   11.1 Analytical requirements
   11.2 Preparation of solutions for determination of soluble
        hexavalent chromium compounds
   11.3 Preparation of solutions for determination of insoluble
        hexavalent chromium compounds
   11.4 Instrumental analysis
   11.5 Estimation of detection and quantification limits
   11.6 Quality control
   11.7 Measurement uncertainty
12 Expression of results
13 Method performance
   13.1 Sample collection and stability
   13.2 Hotplate extraction
   13.3 Ultrasonic extraction
   13.4 Interferences
14 Special cases
   14.1 Spray-painting
   14.2 Action to be taken when particles have become dislodged
        from the filter during transportation
15 Test report
   15.1 Test record
   15.2 Laboratory report
Annex A (informative) Temperature and pressure corrections
Annex B (informative) Background on methods for determination
                      of hexavalent chromium in air and guidance
                      on their use
Bibliography

Defines a method for the determination of the time-weighted average mass concentration of hexavalent chromium in workplace air.

This International Standard specifies a method for the determination of the time-weighted average mass concentration of hexavalent chromium in workplace air.

Separate sample preparation methods are specified for the extraction of soluble and insoluble hexavalent chromium. The method for insoluble hexavalent chromium can also be used to prepare samples for determination of total hexavalent chromium, if desired.

This International Standard is applicable to the personal sampling of the inhalable fraction of airborne particles, as defined in ISO7708, and to static (area) sampling. The analytical method is applicable to the determination of masses of 0,01µg to 10µg of hexavalent chromium per sample, without dilution.

The concentration range of hexavalent chromium in air for which the measuring procedure is applicable is determined by the sampling method selected by the user (see 10.1). For a 1m3 air sample, without sample dilution, the working range is approximately 0,01µg·m−3 to 10µg·m−3.

Committee
EH/2/2
DocumentType
Standard
Pages
50
PublisherName
British Standards Institution
Status
Current

Standards Relationship
ISO 16740:2005 Identical

ASTM E 1370 : 2014 : REDLINE Standard Guide for Air Sampling Strategies for Worker and Workplace Protection
EN 12919:1999 Workplace atmospheres - Pumps for the sampling of chemical agents with a volume flow rate of over 5 l/min - Requirements and test methods
ASTM D 4840 : 1999 Standard Guide for Sampling Chain-of-Custody Procedures
ISO 7708:1995 Air quality — Particle size fraction definitions for health-related sampling
ISO 8655-5:2002 Piston-operated volumetric apparatus Part 5: Dispensers
ISO 8655-1:2002 Piston-operated volumetric apparatus Part 1: Terminology, general requirements and user recommendations
ISO 3585:1998 Borosilicate glass 3.3 Properties
ISO 8756:1994 Air quality Handling of temperature, pressure and humidity data
ISO 1042:1998 Laboratory glassware One-mark volumetric flasks
ISO 648:2008 Laboratory glassware — Single-volume pipettes
EN 482:2012+A1:2015 Workplace exposure - General requirements for the performance of procedures for the measurement of chemical agents
ISO 9004:2009 Managing for the sustained success of an organization A quality management approach
ISO 6879:1995 Air quality — Performance characteristics and related concepts for air quality measuring methods
ISO 8655-2:2002 Piston-operated volumetric apparatus Part 2: Piston pipettes
EN 13205:2001 Workplace atmospheres - Assessment of performance of instruments for measurement of airborne particle concentrations
ISO 3696:1987 Water for analytical laboratory use — Specification and test methods
ISO 10882-1:2011 Health and safety in welding and allied processes Sampling of airborne particles and gases in the operator's breathing zone Part 1: Sampling of airborne particles
EN 1540:2011 Workplace exposure - Terminology
EN 1232:1997 Workplace atmospheres - Pumps for personal sampling of chemical agents - Requirements and test methods
ISO 8655-6:2002 Piston-operated volumetric apparatus Part 6: Gravimetric methods for the determination of measurement error
ISO 3534-1:2006 Statistics — Vocabulary and symbols — Part 1: General statistical terms and terms used in probability

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