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BS ISO 6323-1:2024

BS ISO 6323-1:2024

$142.49

Workplace air. Determination of arsenic and arsenic compounds by electrothermal atomic absorption spectrometry – Arsenic and arsenic compounds, except arsine by ET-AAS

Published By Publication Date Number of Pages
BSI 2024 32
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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
4 Principle
5 Requirement
6 Apparatus and equipment
6.1 Sampling equipment
6.1.1 Sampler
11 6.1.2 Filter capsule
6.1.3 Sampling pumps
6.1.4 Portable flowmeter
6.1.5 Silicone adapter
6.1.6 Ancillary equipment
6.2 Collection media
6.2.1 Filters
12 6.2.2 Recommendations for filters
13 6.2.3 Back pressure of filters
6.2.4 Weighing of filters
6.3 Equipment for the determination of dust concentration
6.4 Equipment for sample digestion
6.4.1 General
6.4.2 Equipment for all types of sample digestion
6.4.3 Laboratory equipment for open vessel hot block digestion
14 6.4.4 Laboratory equipment for high pressure microwave digestion
6.5 Equipment for analysis
6.5.1 General
6.5.2 Equipment for sample preparation
6.5.3 Analytical system
7 Reagents
7.1 General
15 7.2 Water
7.3 Chemicals for digestion
7.4 Chemicals for analysis
7.4.1 Stabilization and modifier
7.4.2 Calibration and quality control standards
7.5 Chemicals for method validation
8 Occupational exposure assessment
16 9 Sampling
9.1 Preliminary considerations
9.1.1 Collection characteristics and flow rate
9.1.2 Sampling period
9.1.3 Temperature and pressure effects
9.1.4 Sample handling
17 9.2 Sample preparation
9.2.1 Cleaning
9.2.2 Filter
9.2.3 Marking
9.2.4 Pre-weighing of filters
9.2.5 Assembly
9.3 Sampling preparation
9.3.1 Initial flow rate
9.3.2 Field blanks
9.3.3 Personal sampling
18 9.3.4 Static sampling
9.4 Parameters
9.5 Performing the sampling
9.5.1 Start of the sampling period
9.5.2 Sampling period
19 9.5.3 End of the sampling period
9.6 Transport and storage
9.6.1 General
9.6.2 Transportation
9.6.3 Storage
20 10 Analysis
10.1 Preparation
10.1.1 General
10.1.2 Weighing
10.1.3 Digestion
21 10.1.4 Solutions
10.2 Instrumental analysis
22 10.3 Estimation of detection and quantification limits
10.3.1 Estimation of the instrumental detection limit
10.3.2 Estimation of the method detection limit and quantification limit
23 10.4 Certified reference materials
10.5 Measurement uncertainty
11 Expression of results
11.1 Calculations
24 11.2 Method performance
11.3 Remarks
25 12 Test report
12.1 Test record
26 12.2 Laboratory report
27 Annex A (informative) Temperature and pressure correction
29 Annex B (informative) Typical operating parameters for determination of arsenic by electrothermal atomic absorption spectrometry
30 Bibliography

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BS ISO 6323-1:2024
$142.49