ISO 22551:2020 EN f3ac181c
Fine ceramics (advanced ceramics, advanced technical ceramics) — Determination of bacterial reduction rate by semiconducting photocatalytic materials under indoor lighting environment — Semi-dry method for estimating antibacterial activity on the actual environmental bacteria contamination surface
现行
发布日期 :
2020-01-07
实施日期 :
IEC TR 63226:2021 EN 190ac0ef
Managing fire risk related to photovoltaic (PV) systems on buildings
现行
发布日期 :
2021-02-18
实施日期 :
ISO 2096:1972 EN bb96c8ac
Glycerols for industrial use — Methods of sampling
现行
发布日期 :
1972-06-01
实施日期 :