UNE - Spanish national standards

Welding consumables - Wire electrodes, wires, rods and deposits for gas shielded arc welding of creep-resisting steels - Classification (ISO 21952:2025)

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Plastics - Environmental aspects - State of knowledge and methodologies (ISO/TR 21960:2020) (Endorsed by Asociación Espanola de Normalización in May of 2020.)

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SPECIFICATION FOR UNUSED POLYBUTENES.

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Information and documentation — Records management in enterprise architecture

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Non-magnetic metallic coatings on metallic and non-metallic basis materials - Measurement of coating thickness - Phase-sensitive eddy-current method (ISO 21968:2019)

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High-pressure flexible connections for use with medical gas systems (ISO 21969:2009)

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Plastics - Polyketone (PK) moulding and extrusion materials - Part 1: Designation system and basis for specifications (ISO 21970-1:2019)

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Plastics - Polyketone (PK) moulding and extrusion materials - Part 2: Preparation of test specimens and determination of properties (ISO 21970-2:2019)

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Fine ceramics (advanced ceramics, advanced technical ceramics) - Mechanical properties of ceramic composites at ambient temperature in air atmospheric pressure - Determination of hoop tensile properties of tubes (ISO 21971:2019) (Endorsed by Asociación Espanola de Normalización in November of 2024.)

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Packaging - Tamper verification features for medicinal product packaging (ISO 21976:2018)

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