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E-mail
changliu006@126.com
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Phone
18915420690
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Address
Room 402, Building 117, Shuangyin International, No. 1388 Dongfang Avenue, Wuzhong District, Suzhou
Suzhou Yikang Environmental Testing Co., Ltd
changliu006@126.com
18915420690
Room 402, Building 117, Shuangyin International, No. 1388 Dongfang Avenue, Wuzhong District, Suzhou
GB/T 13277.1 Classification of Compressed Air Pollutants
compressed airMedium particle grade
The detection method should be based on the particle grade requirementsGB/T13277.4orISO8573-8Take measurements. When it is determined that there is a greater than5umWhen it comes to particles,Should not be used1Level up to5Level classification. | ||||
Particle grade |
Maximum number of particles per cubic meter based on particle size a/m3 |
|||
0.1 μm < d ≤ 0.5 μm |
0.5 μm < d ≤ 1.0 μm |
1.0 μm < d ≤ 5.0 μm |
||
0 |
As specified by the device user or manufacturer (compared to the grade) 1 Higher requirements) |
|||
1 |
≤20000 |
≤400 |
≤10 |
|
2 |
≤400000 |
≤6000 |
≤100 |
|
3 |
Not regulated |
≤90000 |
≤1000 |
|
4 |
Not regulated |
Not regulated |
≤10000 |
|
5 |
Not regulated |
Not regulated |
≤100000 |
|
6 |
— |
0 < Cₚ≤ 5 |
||
7 |
5 < Cₚ≤ 10 |
|||
X |
Cₚ> 10 |
|||
Humidity and liquid water level in compressed air
Testing Standard |
According to the requirements of humidity and liquid water levelGB/T13277.3orISO 8573-9Take measurements. |
|
level |
Pressure dew point（℃） |
Liquid water quality concentrationg/m3 |
0 |
As specified by the device user or manufacturer (compared to the grade) 1 Higher requirements) |
|
1 |
≤-70 |
|
2 |
≤-40 |
|
3 |
≤-20 |
|
4 |
≤+3 |
|
5 |
≤+7 |
|
6 |
≤+10 |
|
7 |
— |
Cw ≤ 5 |
8 |
0.5 < Cw ≤ 5 |
|
9 |
5< Cw ≤ 10 |
|
X |
Cw＞10 |
Total oil content grade in compressed air
Should be in accordance withGB/T13277.2Measure liquid oil and suspended oil. The total oil content grade is3Level4Level andXGrade time,Under standard conditions, the oil vapor content generally does not have a significant impact on the total oil content,Therefore,It can be determined whether to measure oil vapor based on the situation. If it is necessary to measure oil vapor,Should be in accordance withGB/T13277.5Take measurements. |
|
level |
Maximum concentration of total oil content（mg/m³） |
0 |
As specified by the device user or manufacturer (compared to the grade) 1 Higher requirements) |
1 |
≤0.01 |
2 |
≤0.1 |
3 |
≤1 |
4 |
≤5 |
X |
＞5 |
category judgment |
General judgment |
judgment criteria/data status |
detection method |
Determination of live microorganisms |
Determine based on the usage environment of the clean room |
No relevant judgment criteria or data available |
GB/T 13277.7-2021[Current] Compressed air 第7Part: Methods for measuring the content of active microorganisms |
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