BS EN ISO 21253-2:2019 Water quality. Multi-compound class methods Criteria for the quantitative determination of organic substances using a multi-compound class analytical method

Analysis
Quantitative analysis
Chemical analysis and testing
Mass spectrometry
Quality
Water

Link: BS EN ISO 21253-2:2019 Water quality. Multi-compound class methods Criteria for the quantitative determination of organic substances using a multi-compound class analytical method
Source: BSI Standards

BS ISO 13794:2019 Ambient air. Determination of asbestos fibres. Indirect-transfer transmission electron microscopy method

Specimen preparation
Shape
Density
Testing conditions
Mineral fibres
Equations
Confidence limits
Particulate air pollutants
Counting
Calibration
Asbestos
Working range
Ash determination
Electron microscopes
Length
Width
Test equipment
Sensitivity
Classification systems
Bibliography
Reports
Air
Aspect ratio
Poisson distribution
Performance
Toxic materials
Identification methods
Filtration
Concentration (chemical)
Test specimens
Interferences (chemical)
Determination of content
Amphiboles
Mathematical calculations
Sampling methods
Air pollution
Microscopic analysis
Sampling equipment
Fibres
Dimensional measurement

Link: BS ISO 13794:2019 Ambient air. Determination of asbestos fibres. Indirect-transfer transmission electron microscopy method
Source: BSI Standards