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  • ISO 21438-1:2007

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    Withdrawn A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
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    Workplace atmospheres Determination of inorganic acids by ion chromatography Part 1: Non-volatile acids (sulfuric acid and phosphoric acid)

    Available format(s):  Hardcopy, PDF, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Withdrawn date:  24-05-2022

    Language(s):  English, French

    Published date:  10-12-2007

    Publisher:  International Organization for Standardization

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    Abstract - (Show below) - (Hide below)

    ISO 21438-1:2007 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 ISO 7708 and to static (area) sampling.

    The analytical method is applicable to the determination of masses of 0,005 mg to 2,000 mg 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 volume 1 m3, the working range is approximately 0,005 mg/m3 to 2,000 mg/m3.

    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.

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    Development Note Supersedes ISO/DIS 21438-1. (12/2007)
    Document Type Standard
    Publisher International Organization for Standardization
    Status Withdrawn
    Superseded By

    Standards Referenced By This Book - (Show below) - (Hide below)

    BS ISO 18158:2016 Workplace air. Terminology
    ISO 18158:2016 Workplace air Terminology
    PREN 13205 : DRAFT 2010 WORKPLACE EXPOSURE - ASSESSMENT OF SAMPLER PERFORMANCE FOR MEASUREMENT OF AIRBORNE PARTICLE CONCENTRATIONS
    12/30259163 DC : 0 BS EN 13205-1 - WORKPLACE EXPOSURE - ASSESSMENT OF PERFORMANCE OF INSTRUMENTS FOR MEASUREMENT OF AIRBORNE PARTICLE CONCENTRATIONS - PART 1: GENERAL REQUIREMENTS
    15/30269207 DC : 0 BS ISO 18158 - WORKPLACE AIR - TERMINOLOGY
    11/30228336 DC : 0 BS EN 13205 - WORKPLACE EXPOSURE - ASSESSMENT OF SAMPLER PERFORMANCE FOR MEASUREMENT OF AIRBORNE PARTICLE CONCENTRATIONS

    Standards Referencing This Book - (Show below) - (Hide below)

    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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