Standards UNE - Spanish national standards - Page 1362

Road vehicles - Dimethyl Ether (DME) refuelling connector (ISO 21058:2019)

Standard published on 21.9.2022

Anodizing of aluminium and its alloys - Determination of mass per unit area (surface density) of anodic oxidation coatings - Gravimetric method (ISO 2106:2019)

Standard published on 21.10.2020

Footwear - Chemical tests - General principles on the preparation of samples (ISO 21061:2021)

Standard published on 13.7.2022

Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 1: General information, terminology and sample preparation (ISO 21068-1:2024) (Endorsed by Asociación Espanola de Normalización in June of 2024.)

Standard published on 1.6.2024

Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 2: Determination of volatile components, total carbon, free carbon, silicon carbide, total and free silicon, free and surface silica (ISO 21068-2:2024) (Endorsed by Asociación Espanola de Normalización in August of 2024.)

Standard published on 1.8.2024

Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 3: Determination of nitrogen, oxygen and metallic and oxidic constituents (ISO 21068-3:2024) (Endorsed by Asociación Espanola de Normalización in August of 2024.)

Standard published on 1.8.2024

Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 4: XRD methods (ISO 21068-4:2024) (Endorsed by Asociación Espanola de Normalización in August of 2024.)

Standard published on 1.8.2024

Determination of boron (III) oxide in refractory products - Part 1: Determination of total boron (III) oxide in oxidic materials for ceramics, glass and glazes (ISO 21078-1:2008) (Endorsed by AENOR in March of 2008.)

Standard published on 1.3.2008

Determination of boron(III) oxide in refractory products - Part 2: Acid extraction method for the determination of boron(III) oxide in binder components (ISO 21078-2:2006)

Standard published on 12.3.2008

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.)

Standard published on 1.6.2008