eLibrary >
ISO 17733:2015 Workplace air - Determination of mercury and inorganic mercury compounds - Method by cold-vapour atomic absorption spectrometry or atomic fluorescence spectrometry >
ISO 17733:2015 Workplace air - Determination of mercury and inorganic mercury compounds - Method by cold-vapour atomic absorption spectrometry or atomic fluorescence spectrometry, 2015
- Foreword
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 3.1 General definitions
- 3.2 Particle size fraction definitions
- 3.3 Sampling definitions
- 3.4 Analytical definitions
- 3.5 Statistical terms
- 4 Principle
- 5 Interferences
- 6 Requirement
- 7 Reagents
- 8 Apparatus
- 8.1 Sampling equipment for diffusive sampling
- 8.2 Sampling equipment for pumped sampling
- 8.3 Laboratory apparatus
- 8.4 Analytical instrumentation
- 9 Occupational exposure assessment
- 9.1 General
- 9.2 Personal sampling
- 9.3 Static (area) sampling
- 9.4 Selection of measurement conditions and measurement pattern
- 9.4.1 General
- 9.4.2 Screening measurements of variation of concentration in time and/or space
- 9.4.3 Screening measurements of time-weighted average concentration and worst case measurements
- 9.4.4 Measurements near an emission source
- 9.4.5 Measurements for comparison with limit values and periodic measurements
- 10 Sampling
- 10.1 Selection of sampling method
- 10.1.1 Measurement of mercury vapour
- 10.1.2 Measurement of particulate inorganic mercury compounds
- 10.1.3 Measurement of mercury vapour and particulate inorganic mercury compounds
- 10.2 Consideration of temperature and pressure effects
- 10.2.1 Effect of temperature and pressure on the uptake rate of diffusive badges
- 10.2.2 Effect of temperature and pressure on volumetric flow rate in the pumped sampling method
- 10.2.3 Expression of results
- 10.3 Diffusive sampling
- 10.3.1 Selection and use of diffusive badges
- 10.3.2 Preparation for sampling
- 10.3.3 Sampling position
- 10.3.4 Sample collection
- 10.3.5 Transportation of samples
- 10.4 Pumped sampling
- 10.4.1 Preliminary considerations
- 10.4.2 Preparation for sampling
- 10.4.3 Sampling position
- 10.4.4 Collection of samples
- 10.4.5 Transportation of samples
- 11 Analysis
- 11.1 General
- 11.2 Cleaning of glassware and plasticsware
- 11.3 Preparation of blank, sample and calibration solutions for analysis of diffusive badges
- 11.3.1 Preparation of blank and sample solutions
- 11.3.2 Preparation of calibration solutions
- 11.4 Preparation of blank, sample and calibration solutions for analysis of pumped samples
- 11.4.1 Preparation of blank and sample solutions
- 11.4.2 Preparation of calibration solutions
- 11.5 Instrumental analysis
- 11.5.1 Setting up the instrument
- 11.5.2 Introduction of solutions into the mercury cold-vapour generation system
- 11.5.3 Conditioning the mercury cold-vapour generation system
- 11.5.4 Check for contamination of the reagents and/or system
- 11.5.5 Calibration
- 11.5.6 Determination
- 11.6 Estimation of detection and quantification limits
- 11.6.1 Estimation of the instrumental detection limit
- 11.6.2 Estimation of the method detection limit and the quantification limit
- 11.7 Quality control
- 11.7.1 Reagent blanks and laboratory blanks
- 11.7.2 Quality control solutions
- 11.7.3 Certified reference materials (CRMs)
- 11.7.4 External quality assessment
- 11.8 Measurement uncertainty
- 12 Expression of results
- 12.1 Calculation of the volume of air samples
- 12.1.1 Diffusive sampling
- 12.1.2 Pumped sampling
- 12.2 Calculation of mercury in air concentrations
- 13 Method performance
- 13.1 General
- 13.2 Detection and quantification limits
- 13.2.1 Sampling with diffusive badges and analysis by cold-vapour atomic absorption spectrometry
- 13.2.2 Sampling with pumped sorbent tubes and analysis by cold-vapour atomic absorption spectrometry
- 13.2.3 Sampling with pumped sorbent tubes and analysis by cold-vapour atomic fluorescence spectrometry
- 13.2.4 Sampling with inhalable samplers and analysis by cold-vapour atomic absorption spectrometry
- 13.3 Upper limits of the analytical range
- 13.4 Blank values
- 13.5 Bias and precision
- 13.5.1 Analytical bias
- 13.5.2 Analytical precision
- 13.5.3 Overall bias of sampling and analysis methods
- 13.5.4 Overall precision of sampling and analysis methods
- 13.6 Overall uncertainty of sampling and analysis methods
- 13.7 Effects on sampler performance
- 13.7.1 Effect of exposure concentration and time on sampler performance
- 13.7.2 Effect of atmospheric temperature, pressure and humidity on sampler performance
- 13.7.3 Effect of air velocity on performance of diffusive badges
- 13.8 Sample uptake rate and sampling capacity of diffusive badges
- 13.9 Collection efficiency, breakthrough volume and sampling capacity of sorbent tubes
- 13.10 Storage stability
- 13.11 Mechanical strength
- 13.12 Interferences
- 14 Test report
- 14.1 Test record
- 14.2 Laboratory report
- Annex A (informative) Guidance on selection of a sampling method for mercury vapour
- Annex B (informative) Temperature and pressure corrections
- Bibliography [Go to Page]