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BS ISO 21438-2:2024

BS ISO 21438-2:2024

$142.49

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 30
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PDF Catalog

PDF Pages PDF Title
2 undefined
7 Foreword
8 Introduction
9 1 Scope
2 Normative references
10 3 Terms and definitions
11 4 Principle
5 Requirement
6 Reagents
12 7 Apparatus
7.1 Sampling equipment
13 7.2 Laboratory apparatus
14 8 Occupational exposure assessment
15 9 Sampling
9.1 Preliminary considerations
9.1.1 Selection and use of samplers
9.1.2 Sampling period
16 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
17 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
18 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
19 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
20 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
21 10.4.3 ā€‹Certified reference materials
10.4.4 Proficiency testing
10.5 Measurement uncertainty
11 Expression of results
22 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
23 12.4.2 Analytical precision
12.5 Uncertainty of sampling and analysis method
12.6 Interferences
13 Test report
13.1 Test record
24 13.2 Laboratory report
25 Annex A (normative) Temperature and pressure correction
27 Annex B (informative) Filter materials
28 Bibliography

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BS ISO 21438-2:2024
$142.49