BS EN IEC 61788-23. Superconductivity. Part 23. Residual resistance ratio measurement. Residual resistance ratio of cavity-grade Nb superconductors
Edition 2023-04-25

Superconductivity - Part 23: Residual resistance ratio measurement - Residual resistance ratio of cavity-grade Nb superconductors (IEC 90/503/CDV) (english version)
Edition 2023-07-15

Superconductivity - Part 23: Residual resistance ratio measurement - Residual resistance ratio of Nb superconductors (Endorsed by Asociación Española de Normalización in November of 2018.)
Edition 2018-11-01

Methods of testing soils for engineering purposes, Method 5.4.1: Soil compaction and density tests - Compaction control test - Dry density ratio, moisture variation and moisture ratio
Edition 2007

Methods of testing soils for engineering purposes Soil compaction and density tests - Compaction control test - Dry density ratio and moisture ratio using statistical selection of reference values
Edition 2006

Thermoplastics pipes - Determination of creep ratio (ISO 9967:2016)
Edition 2016-04-20

Superconductivity - Part 12: Matrix to superconductor volume ratio measurement - Copper to non-copper volume ratio of Nb3Sn composite superconducting wires (Endorsed by AENOR in November of 2013.)
Edition 2013-11-01

Standard Test Method for Polyurethane Raw Materials: Determination of Dimer Ratio in Pure MDI
Edition 2016

Implants for surgery. Hydroxyapatite. Chemical analysis and characterization of crystallinity ratio and phase purity
Edition 2018-12-10

Plastics. Aromatic isocyanates for use in the production of polyurethanes. Determination of the isomer ratio in toluenediisocyanate (TDI)
Edition 2017-07-28