BS ISO 21438-3:2010
Current
The latest, up-to-date edition.
Workplace atmospheres. Determination of inorganic acids by ion chromatography Hydrofluoric acid and particulate fluorides
31-12-2010
| Committee |
EH/2/2
|
| DevelopmentNote |
Supersedes 09/30165942 DC. (12/2010)
|
| DocumentType |
Standard
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This part of ISO21438 specifies a method for the determination of the time-weighted average mass concentration of soluble particulate fluorides and hydrofluoric acid (HF) in workplace air by collection of the particulate fluorides on a pre-filter and HF on an alkali-impregnated filter and analysis by ion chromatography.
The method is only applicable to determination of particulate fluorides that are soluble using the sample preparation procedure specified.
For aerosol sampling, 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 method is applicable to the determination of masses of 0,005mg to at least 1,25mg of particulate fluorides per sample and 0,0125mg to at least 1,2mg of HF per sample.
The concentration range of particulate fluorides and HF in air for which the measuring procedure is applicable is determined by the sampling method selected by the user. For a 120l air sample, the working range is approximately 0,04mg m−3 to at least 10mg m-3 for particulate fluorides and approximately 0,13mg m-3 to at least 10mg m-3 for HF.
HF can react with co-sampled particulate matter on the pre-filter, causing an interference on the measured concentration.
| Standards | Relationship |
| ISO 21438-3:2010 | 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 |
| EN 482:2012+A1:2015 | Workplace exposure - General requirements for the performance of procedures for the measurement of chemical agents |
| EN 13890:2009 | Workplace exposure - Procedures for measuring metals and metalloids in airborne particles - Requirements and test methods |
| 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 3534-2:2006 | Statistics — Vocabulary and symbols — Part 2: Applied statistics |
| ISO 9004:2009 | Managing for the sustained success of an organization A quality management approach |
| 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 |
| 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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