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Chemical analysis of refractories containing alumina, zirconia and silica - Refractories containing 5 percent to 45 percent of ZrO<(Index)2> (alternative to the X-ray fluorescence method) - Part 1: Apparatus, reagents and dissolution

Chemical analysis of refractories containing alumina, zirconia, and silica - Refractories containing 5 percent to 45 percent of ZrO<(Index)2> (alternative to the X-ray fluorescence method) - Part 2: Wet chemical analysis

Chemical analysis of refractories containing alumina, zirconia, and silica - Refractories containing 5 percent to 45 percent of ZrO<(Index)2> (alternative to the X-ray fluorescence method) - Part 3: Flame atomic absorption spectrophotometry (FAAS) and inductively coupled plasma emission spectrometry (ICP -AES)

Test method to measure the efficiency of air filtration media against spherical nanomaterials - Part 2: Size range from 3 nm to 30 nm (ISO/TS 21083-2:2019)

Test method to measure the efficiency of air filtration media against spherical nanomaterials - Part 1: Size range from 20 nm to 500 nm (ISO 21083-1:2018)

Textiles - Method for determination of alkylphenols (AP) (ISO 21084:2019)

Health Informatics - Harmonized data types for information interchange (ISO 21090:2011)

Health informatics - Directory services for healthcare providers, subjects of care and other entities (ISO 21091:2013)

Information and documentation - Emergency preparedness and response

Information and documentation - Emergency preparedness and response

Information and documentation — A reference ontology for the interchange of cultural heritage information

Chemicals for the leather tanning industry - Determination of the total content of certain bisphenols (ISO 21135:2024)