GB/T 25915.1-2021
洁净室及相关受控环境 第1部分:按粒子浓度划分空气洁净度等级
Cleanrooms and associated controlled environments—Part 1: Classification of air cleanliness by particle concentration
- 实施日期
- 2022-03-01
- ICS 分类
- 13.040.35
组合使用关键词、标准类型、状态与 ICS 分类,快速定位所需国家标准。
找到 70,494 条
GB/T 25915.1-2021
Cleanrooms and associated controlled environments—Part 1: Classification of air cleanliness by particle concentration
GB/T 25915.10-2021
Cleanrooms and associated controlled environments—Part 10: Classification of surface cleanliness by chemical concentration
GB/T 25015-2021
Ships and marine technology—Ship-shifting winches
GB/T 24524-2021
Metallic materials—Sheet and strip—Hole expanding test
GB/T 24488-2021
Test method for electrochemical properties of magnesium alloys sacrificial anode
GB/T 24402-2021
General quality requirements for canned frying mud carps
GB/T 24347-2021
DC/DC converter for electric vehicles
GB/T 24311-2021
Plywood for foldable packing case
GB/T 24183-2021
Metallic materials—Sheet and Strip—Earing test
GB/T 23957-2021
Light calcium carbonate for tooth-paste industry
GB/T 23940-2021
Analytical methods of persulfate products for industrial use
GB/T 23108-2021
Methods for measuring performance for household and similar electric heating pads
GB/T 22778-2021
Liquid crystal digital quartz stopwatches
GB/T 22616-2021
Fenoxaprop-P-ethyl
GB/T 22590-2021
Refractory castables for rolling mill reheating furnace
GB/T 22485-2021
Specification for taxi operation service
GB/T 22209-2021
Marine no-asbestos fiber reinforced rubber gasket material
GB/T 20899.6-2021
Methods for chemical analysis of gold ores—Part 6: Determination of zinc content
GB/T 20899.5-2021
Methods for chemical analysis of gold ores—Part 5: Determination of lead content
GB/T 20899.4-2021
Methods for chemical analysis of gold ores—Part 4: Determination of copper content