UNE - Spanish national standards

Optics and optical instruments - Test lenses for calibration of focimeters - Part 1: Reference lenses for focimeters used for measuring spectacle lenses (ISO 9342-1:2023)

Available languages: English, Spanish

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Optics and optical instruments - Test lenses for calibration of focimeters - Part 2: Test lenses for focimeters used for measuring contact lenses (ISO 9342-2:2005)

Available languages: English, Spanish

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Hygrothermal performance of buildings and building materials - Physical quantities for mass transfer - Vocabulary (ISO 9346:2007)

Available languages: English, Spanish

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Chemicals used for treatment of water intended for human consumption - Aluminium iron(III) chloride (monomeric) and aluminium iron(III) chloride hydroxide (monomeric)

Available languages: English, Spanish

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Galvanic anodes for cathodic protection in seawater and saline sediments (ISO 9351:2025)

Available languages: English, Spanish

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Chemicals used for treatment of water intended for human consumption - Carbon dioxide

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Anaesthetic and respiratory equipment - Heat and moisture exchangers (HMEs) for humidifying respired gases in humans - Part 1: HMEs for use with minimum tidal volumes of 250 ml (ISO 9360-1:2000)

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Anaesthetic and respiratory equipment - Heat and moisture exchangers (HMEs) for humidifying respired gases in humans - Part 2: HMEs for use with tracheostomized patients having minimum tidal volumes of 250 ml (ISO 9360-2:2001)

Available languages: English, Spanish

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Chemicals used for treatment of water intended for human consumption - Chlorine

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Water quality - Determination of hydrocarbon oil index - Part 2: Method using solvent extraction and gas chromatography. (ISO 9377-2:2000)

Available languages: English, Spanish

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