UNE - Spanish national standards

Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda

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Fertilizers - Determination of the water-soluble potassium content

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Fertilizers - Determination of total nitrogen in urea

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Fertilizers - Spectrophotometric determination of biuret in urea

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HEXAGON WASHER HEAD DRILLING SCREWS WITH TAPPING SCREW THREAD (ISO 15480:1999)

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Chemicals used for treatment of water intended for human consumption - Sodium permanganate

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Textiles - Method for assessing appearance of apparel and other textile end products after domestic washing and drying. (ISO 15487:1999)

Available languages: Spanish

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Textiles - Method for assessing appearance of apparel and other textile end products after domestic washing and drying (ISO 15487:2009)

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Information and documentation. Records management . Part 1: General.

Available languages: Spanish, Catalan, English

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Ethanol as a blending component for petrol - Determination of total acidity - Colour indicator titration method

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