UNE - Spanish national standards

District heating pipes - Bonded single pipe systems for directly buried hot water networks - Part 1: Factory made steel shut-off valve assembly for steel service pipes, polyurethane thermal insulation and a casing of polyethylene (Endorsed by Asociación Espanola de Normalización in May of 2025.)

Available languages: English

Available design: electronic design (pdf), Print design

District heating and district cooling pipes - Bonded pipe systems for directly buried hot and cold water networks - Part 2: Factory made steel service valve assembly for steel service pipes, polyurethane thermal insulation and a casing of polyethylene (Endorsed by Asociación Espanola de Normalización in May of 2025.)

Available languages: English

Available design: electronic design (pdf), Print design

Aerospace series - General technical specification for standard parts (Endorsed by Asociación Espanola de Normalización in September of 2023.)

Available languages: English

Available design: electronic design (pdf), Print design

Aerospace series - Micro-arc oxidation of aluminium and aluminium alloys (Endorsed by Asociación Espanola de Normalización in December of 2023.)

Available languages: English

Available design: electronic design (pdf), Print design

Aerospace series - Steel X5CrNiCu 17-4 (1.4542) - Air melted - Solution treated and precipitation treated - Sheets and strips - a = 6 mm - Rm = 1 070 MPa

Available languages: English

Available design: electronic design (pdf), Print design

Aerospace series - Steel X5CrNiCu 17-4 (1.4542) - Air melted - Solution treated and precipitation treated - Plates - 6 mm = a = 100 mm - Rm = 1 070 MPa

Available languages: English

Available design: electronic design (pdf), Print design

Hardmetals - Sampling and testing of powders using sintered test pieces (ISO 4884:2019)

Available languages: English, Spanish

Available design: electronic design (pdf), Print design

Aerospace series - Steel X3CrNiMoAl (1.4534) - Vacuum induction melted and consumable electrode remelted - Solution treated and precipitation treated - Bars for machining - a or D = 200 mm - 1 200 MPa = Rm = 1 350 MPa

Available languages: English

Available design: electronic design (pdf), Print design

Ferrous materials - Heat treatments - Vocabulary (ISO 4885:2018)

Available languages: English, Spanish

Available design: electronic design (pdf), Print design

Aerospace series - Rotorcraft life raft - Requirements, testing and marking (Endorsed by Asociación Espanola de Normalización in September of 2024.)

Available languages: English

Available design: electronic design (pdf), Print design