ISO 21438-1:2007
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.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)
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24-05-2022
English, French
10-12-2007
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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.
| DevelopmentNote |
Supersedes ISO/DIS 21438-1. (12/2007)
|
| DocumentType |
Standard
|
| Pages |
29
|
| PublisherName |
International Organization for Standardization
|
| Status |
Withdrawn
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| SupersededBy |
| Standards | Relationship |
| BS ISO 21438-1:2007 | Identical |
| NF ISO 21438-1 : 2008 | Identical |
| SS-ISO 21438-1 : 2015 | Identical |
| GOST R ISO 21438-1 : 2011 | Identical |
| 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 |
| 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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