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BS ISO 21438-1:2007

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Workplace atmospheres — Determination of inorganic acids by ion chromatography Part 1: Non-volatile acids (sulfuric acid and phosphoric acid)
Available format(s)

Hardcopy , PDF

Superseded date

01-09-2022

Language(s)

English

Published date

31-01-2008

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 Requirement
6 Reagents
7 Apparatus
   7.1 Sampling equipment
   7.2 Laboratory apparatus
8 Occupational exposure assessment
   8.1 General
   8.2 Personal sampling
   8.3 Static sampling
   8.4 Selection of measurement conditions and
        measurement pattern
9 Sampling
   9.1 Preliminary considerations
   9.2 Preparation for sampling
   9.3 Sampling position
   9.4 Collection of samples
   9.5 Transportation
10 Analysis
   10.1 Preparation of test and calibration solutions
   10.2 Instrumental analysis
   10.3 Estimation of detection and quantification
        limits
   10.4 Quality control
   10.5 Measurement uncertainty
11 Expression of results
12 Method performance
   12.1 Sample collection and stability
   12.2 Quantification limits
   12.3 Upper limits of the analytical range
   12.4 Bias and precision
   12.5 Uncertainty of sampling and analysis method
   12.6 Interferences
13 Test report
   13.1 Test record
   13.2 Laboratory report
Annex A (informative) Temperature and pressure correction
Bibliography

Describes a method for the determination of the time-weighted average mass concentration of sulfuric acid and phosphoric acid in workplace air by ion chromatography.

This part of ISO21438 specifies a method for the determination of the time-weighted average mass concentration of sulfuric acid and phosphoric acid in workplace air by ion chromatography.

The method 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 0,005mg to 2,0mg of sulfuric acid and phosphoric acid per sample, without dilution.

The concentration range of sulfuric acid and phosphoric acid in air for which the measuring procedure is applicable is determined by the sampling method selected by the user. For an air sample of volume1m3, the working range is approximately 0,005mg m−3 to 2,0mg m−3.

The method is not applicable to the determination of sulfur trioxide.

The procedure does not allow differentiation between the acids and their corresponding salts if both are present in the air.

The procedure does not allow differentiation between phosphoric acid and diphosphorus pentoxide (phosphoric anhydride) if both are present in the workplace.

Committee
EH/2/2
DevelopmentNote
Supersedes 06/30127422 DC. (01/2008)
DocumentType
Standard
Pages
38
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

Standards Relationship
ISO 21438-1:2007 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 8655-1:2002 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/IEC Guide 99:2007 International vocabulary of metrology Basic and general concepts and associated terms (VIM)
CEN/TR 15230:2005 Workplace atmospheres - Guidance for sampling of inhalable, thoracic and respirable aerosol fractions
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
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

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$478.43
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