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Standards [CURRENT]

BS EN ISO 21079-1

Chemical analysis of refractories containing alumina, zirconia and silica. Refractories containing 5 percent to 45 percent of ZrO2 (alternative to the X-ray fluorescence method). Apparatus, reagents and dissolution
Edition 2009-04-30

Standards [CURRENT]

BS EN ISO 21079-2

Chemical analysis of refractories containing alumina, zirconia, and silica. Refractories containing 5 percent to 45 percent of ZrO2 (alternative to the X-ray fluorescence method). Wet chemical analysis
Edition 2009-04-30

Standards [CURRENT]

UNE-EN ISO 21587-1

Chemical analysis of aluminosilicate refractory products (alternative to the X-ray fluorescence method) - Part 1: Apparatus, reagents, dissolution and gravimetric silica (ISO 21587-1:2007)
Edition 2008-03-05

Standards [CURRENT]

UNE-EN 15411

Solid recovered fuels - Methods for the determination of the content of trace elements (As, Ba, Be, Cd, Co, Cr, Cu, Hg, Mo, Mn, Ni, Pb, Sb, Se, Tl, V and Zn)
Edition 2012-05-03

Standards [CURRENT]

UNE-CEN ISO/TS 24283-1

Geotechnical investigation and testing - Qualification criteria and assessment - Part 1: Qualified technician and qualified operator (ISO/TS 24283-1:2022)
Edition 2022-05-11

Standards [CURRENT]

UNE-EN ISO 22475-1

Geotechnical investigation and testing - Sampling methods and groundwater measurements - Part 1: Technical principles for the sampling of soil, rock and groundwater (ISO 22475-1:2021)
Edition 2022-06-29

Standards [CURRENT]

UNE-EN ISO 54321

Soil, treated biowaste, sludge and waste - Digestion of aqua regia soluble fractions of elements (ISO 54321:2020) (Endorsed by Asociación Española de Normalización in March of 2021.)
Edition 2021-03-01

Standards [CURRENT]

UNE-EN ISO 21079-1

Chemical analysis of refractories containing alumina, zirconia and silica - Refractories containing 5 percent to 45 percent of ZrO₂ (alternative to the X-ray fluorescence method) - Part 1: Apparatus, reagents and dissolution (ISO 21079-1:2008) (Endorsed by AENOR in June of 2008.)
Edition 2008-06-01

Standards [CURRENT]

UNE-EN ISO 21079-2

Chemical analysis of refractories containing alumina, zirconia, and silica - Refractories containing 5 percent to 45 percent of ZrO₂ (alternative to the X-ray fluorescence method) - Part 2: Wet chemical analysis (ISO 21079-2:2008) (Endorsed by AENOR in June of 2008.)
Edition 2008-06-01

Standards [CURRENT]

UNE-EN ISO 21079-3

Chemical analysis of refractories containing alumina, zirconia, and silica - Refractories containing 5 percent to 45 percent of ZrO₂ (alternative to the X-ray fluorescence method) - Part 3: Flame atomic absorption spectrophotometry (FAAS) and inductively coupled plasma emission spectrometry (ICP -AES) (ISO 21079-3:2008) (Endorsed by AENOR in June of 2008.)
Edition 2008-06-01

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