Compressed air - Part 1: Contaminants and purity classes
1 Scope
This part of GB/T 13277 specifies purity classes of compressed air in respect of particles, water and trace oil.
This part also identifies microbiological and gaseous contaminants.
The gaseous contaminants included in this part are carbon monoxide, carbon dioxide, sulfur dioxide, nitrogen dioxide, nitric oxide and hydrocarbons with carbon atoms in the range C1 to C5.
Note: Other contaminants are taken into consideration for specific applications, e.g. air used for breathing, medical, food and beverage purposes.
2 Normative references
The following documents contain provisions which, through reference in this part of GB/T 13277, constitute provisions of this part. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this part. However, parties to agreements based on this part are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest editions apply to this part.
GB/T 10893 Compressed air dryers - Specifications and testing (GB/T 10893-1989, eqv ISO 7183: 1986)
JB/T 7664 Purging for compressed air - Vocabulary
ISO 8573-2 Compressed air - Part 2: Test methods for oil aerosol content
ISO 8573-3 Compressed air - Part 3: Test methods for measurement of humidity
ISO 8573-4 Compressed air - Part 4: Test methods for solid particle content
ISO 8573-5 Compressed air - Part 5: Test methods for oil vapour and organic solvent content
ISO 8573-6 Compressed air - Part 6: Test methods for gaseous contaminant content
ISO 8573-7 Compressed air - Part 7: Test method for viable microbiological contaminant content
ISO 8573-8 Compressed air - Part 8: Test methods for solid particle content by mass concentration
ISO 8573-9 Compressed air - Part 9: Test methods for liquid water content
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Measurement of contaminants
5 Standard condition
6 Contaminants
7 Compressed air purity classes
