GB/T 25915.9-2018

Active

Cleanrooms and associated controlled environments—Part 9: Classification of surface cleanliness by particle concentration

洁净室及相关受控环境第9部分：按粒子浓度划分表面洁净度等级

Standard Type

GBT

ICS

13.040.35

CCS

C70

Status

现行

Issue Date

2018-06-07

Implementation

2018-10-01

Responsible Dept

国家标准委

Drafting Unit

N/A

🔗 Related Standards / 同类标准

GB/T 4920-1985 Determination of sulphuric acidmist in tail gas in sulphuric acid concentration process--Barium chromate colorimetric method GB/T 5748-1985 Methods for airborne dust measurement in work place GB/T 6921-1986 Determination of the concentration of airborne particulate matters GB/T 6919-1986 Air quality--Vocabulary GB/T 8914-1988 Hygienic determination method of mercury in air of residential areas--Gold amalgamation-atomicabsorption spectrometric method GB/T 8913-1988 Hygienic determination method of sulfur dioxide in air of residential areas--Tetrachloromercurate (TCM)-pararosaniline spectrophotometric method GB/T 8912-1988 Hygienic determination method of arsenide in air of residential areas--Silver diethyldithiocarbamate spectrophotometric method GB/T 8911-1988 Hygienic determination method of carbon monoxide in air of residential areas--Method of replacing mercury