UNE - Spanish national standards

Design and manufacture of site built, vertical, cylindrical, flat-bottomed tank systems for the storage of refrigerated, liquefied gases with operating temperatures between 0 °C and -196 °C - Part 5: Testing, drying, purging and cool-down (Endorsed by Asociación Espanola de Normalización in December of 2025.)

Available languages: English

Available design: electronic design (pdf), Print design

Textiles - Multifilament yarns - Methods of test for textured or non-textured filament yarns

Available languages: English, Spanish

Available design: electronic design (pdf), Print design

Devices to prevent pollution by backflow of potable water. Air gap with circular overflow (restricted). Family A-Type F

Available languages: English, Spanish

Available design: electronic design (pdf), Print design

Devices to prevent pollution by backflow of potable water - Air gaps with minimum circular overflow (verified by test or measurement) - Family A, type G

Available languages: English, Spanish

Available design: electronic design (pdf), Print design

Performance of portable locating leak detectors and of fixed gas detectors for all refrigerants

Available languages: English, Spanish

Available design: electronic design (pdf), Print design

Ambient air - Standard method for the measurement of the concentration of ozone by ultraviolet photometry

Available languages: English, Spanish

Available design: electronic design (pdf), Print design

Ambient air - Standard method for the measurement of the concentration of carbon monoxide by non-dispersive infrared spectroscopy

Available languages: English, Spanish

Available design: electronic design (pdf), Print design

Foodstuffs - Determination of trace elements - Determination of total arsenic and selenium by hydride generation atomic absorption spectrometry (HGAAS) after pressure digestion

Available languages: English, Spanish

Available design: electronic design (pdf), Print design

Fine ceramics (advanced ceramics, advanced technical ceramics) - Test method for fracture resistance of silicon nitride materials for rolling bearing balls at room temperature by indentation fracture (IF) method (ISO 14627:2012) (Endorsed by Asociación Espanola de Normalización in January of 2026.)

Available languages: English

Available design: electronic design (pdf), Print design

Ductile iron pipes, fittings and accessories - Requirements and test methods - Part 1: PE coatings

Available languages: English, Spanish

Available design: electronic design (pdf), Print design