BS ISO 17168-4:2018 Fine ceramics (advanced ceramics, advanced technical ceramics). Test method for air-purification performance of semiconducting photocatalytic materials under indoor lighting environment Removal of formaldehyde

Composite materials
Glass tubes
Bacterial viruses
Ceramics
Centrifuges
Test methods
Bacteria
Radiometers
Semiconductors
Test equipment
Special ceramics

Link: BS ISO 17168-4:2018 Fine ceramics (advanced ceramics, advanced technical ceramics). Test method for air-purification performance of semiconducting photocatalytic materials under indoor lighting environment Removal of formaldehyde
Source: BSI Standards

BS ISO 1833-27:2018 Textiles. Quantitative chemical analysis Mixtures of cellulose fibres with certain other fibres (method using aluminium sulfate)

Textile fibres
Extraction methods of analysis
Chemical tests (textiles)
Chemical analysis and testing
Mixtures
Specimen preparation
Quantitative analysis
Textile testing
Separation methods (chemical analysis)
Interferences (chemical)
Separation
Determination of content
Fibre testing (textiles)

Link: BS ISO 1833-27:2018 Textiles. Quantitative chemical analysis Mixtures of cellulose fibres with certain other fibres (method using aluminium sulfate)
Source: BSI Standards

BS ISO 19690-2:2018 Disc springs Technical specifications

Ultrasonic testing
Metallography
Dimensional measurement
Eddy-current tests
Inspection
Replica techniques
Depth measurement
Ratings
Statistical methods of analysis
Visual inspection (testing)
Corrosion
Identification methods
Pitting corrosion
Non-destructive testing
Defects
Corrosion tests
Mechanical properties of materials
Alloys
Radiographic testing
Reproducibility
Machining tolerances
Penetrant flaw detection
Microscopic analysis
Metals

Link: BS ISO 19690-2:2018 Disc springs Technical specifications
Source: BSI Standards