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BS ISO 21438-2:2024 – TC

BS ISO 21438-2:2024 – TC

$186.33

Tracked Changes. Workplace atmospheres. Determination of inorganic acids by ion chromatography – Volatile acids, except hydrofluoric acid (hydrochloric acid, hydrobromic acid and nitric acid)

Published By Publication Date Number of Pages
BSI 2024 79
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PDF Catalog

PDF Pages PDF Title
51 undefined
56 Foreword
57 Introduction
58 1 Scope
2 Normative references
59 3 Terms and definitions
60 4 Principle
5 Requirement
6 Reagents
61 7 Apparatus
7.1 Sampling equipment
62 7.2 Laboratory apparatus
63 8 Occupational exposure assessment
64 9 Sampling
9.1 Preliminary considerations
9.1.1 Selection and use of samplers
9.1.2 Sampling period
65 9.1.3 Effect of temperature and pressure on flow rate measurements
9.1.4 Sample handling
9.2 Preparation for sampling
9.2.1 Cleaning of samplers
9.2.2 Loading the aerosol samplers with filters
66 9.2.3 Setting the volumetric flow rate
9.2.4 Field blanks
9.3 Sampling position
9.3.1 Personal sampling
9.3.2 Static sampling
9.4 Collection of samples
67 9.5 Transportation
9.5.1 Samplers that collect airborne particles and/or gases on the filter
9.5.2 Samplers with an internal filter cassette
9.5.3 Samplers of the disposable-cassette type
9.5.4 Transport of samples to the laboratory
9.5.5 Equilibration period
10 Analysis
68 10.1 Preparation of test and calibration solutions, and filter samples
10.1.1 General
10.1.2 Preparation of filter solutions
10.1.3 Preparation of calibration solutions
10.2 Instrumental analysis
69 10.3 Estimation of limits of detection and quantification
10.3.1 Estimation of the instrumental limit of detection
10.3.2 Estimation of the method limit of detection and limit of quantification
10.4 Quality control
10.4.1 Reagent blanks and laboratory blanks
10.4.2 Quality control solutions
70 10.4.3 ​Certified reference materials
10.4.4 Proficiency testing
10.5 Measurement uncertainty
11 Expression of results
71 12 Method performance
12.1 Sampling efficiency and sample storage
12.2 Limits of quantification
12.3 Upper limits of the working range
12.4 Bias and precision
12.4.1 Analytical bias
72 12.4.2 Analytical precision
12.5 Uncertainty of sampling and analysis method
12.6 Interferences
13 Test report
13.1 Test record
73 13.2 Laboratory report
74 Annex A (normative) Temperature and pressure correction
76 Annex B (informative) Filter materials
77 Bibliography

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BS ISO 21438-2:2024 - TC
$186.33