UNE - Spanish national standards

Dentistry - Nominal diameters and designation code numbers for rotary instruments (ISO 2157:2016)

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Foodstuffs - Methods of analysis for the detection of genetically modified organisms and derived products - Quantitative nucleic acid based methods (ISO 21570:2005)

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Foodstuffs - Methods of analysis for the detection of genetically modified organisms and derived products - Quantitative nucleic acid based methods (ISO 21570:2005/Amd 1:2013)

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Foodstuffs - Methods of analysis for the detection of genetically modified organisms and derived products - Nucleic acid extraction (ISO 21571:2005)

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Foodstuffs - Methods of analysis for the detection of genetically modified organisms and derived products - Nucleic acid extraction - Amendment 1 (ISO 21571:2005/Amd 1:2013)

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Foodstuffs - Molecular biomarker analysis - Immunochemical methods for the detection and quantification of proteins (ISO 21572:2019)

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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)

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Chemical analysis of aluminosilicate refractory products (alternative to the X-ray fluorescence method) - Part 2: Wet chemical analysis (ISO 21587-2:2007)

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Chemical analysis of aluminosilicate refractory products (alternative to the X-ray fluorescence method) - Part 3: Inductively coupled plasma and atomic absorption spectrometry methods (ISO 21587-3:2007)

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Ship and marine technology - Technical requirements for dry-disconnect/connect couplings for bunkering liquefied natural gas (ISO 21593:2019)

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