This standard is applicable to light-load oil-injected rotary air compressor oil prepared from mineral oil fractions through various refining processes and added with antioxidant, anti-foam and anti-rust additives. GB 5904-1986 Light-load oil-injected rotary air compressor oil GB5904-1986 Standard download and decompression password: www.bzxz.net

National Standard of the People's Republic of China
Lubricants for light duty rotaryroil-ffooded air compressor
UDC621.89.092
GB5904-86
This standard is applicable to light-load oil-injected rotary air compressor oil prepared from mineral oil fractions through various refining processes and added with antioxidant, anti-foam and anti-rust additives.
This product is used for light-load oil-injected and internally cooled rotary air compressors with exhaust temperatures less than 100°C and effective working pressures less than 800kPa (less than 8bar).
This product is divided into six viscosity grades: N15, N22, N32, N46, N68 and N100 based on the central value of kinematic viscosity at 40°C. Reference standards
GB260
GB259
GB
GB
GB
GB
GB
GB
265
267
268
511
2541
3141
GB'
3535| |tt||GB
4756
GB
5096
SY
SY
SY
2000||tt ||2669
2674
SY
2680
SY
2683
Petroleum products moisture determination method
Petroleum products Water-soluble acid and alkali test method
Determination method of kinematic viscosity of petroleum products
Determination method of flash point and fire point of petroleum products (open cup method) Determination method of carbon residue of petroleum products
Petroleum products and Additive mechanical impurity determination method (gravimetric method) Petroleum product viscosity index calculation table
Industrial lubricating oil viscosity classification
Petroleum pour point determination method
Petroleum and liquid petroleum product sampling method (manual Method) Copper sheet corrosion test method for petroleum products
Petroleum product packaging, storage, transportation and delivery acceptance rules Lubricating oil foam properties determination method
Lubricating oil liquid phase corrosion determination method
Steam turbine Determination of oil oxidation stability
Turbine oil demulsification time determination method
National Bureau of Standards released on 1986-03-03
Implemented on 1986-12-01
3| |tt||Technical requirements
item
viscosity grade
item
kinematic viscosity (40℃), mm2/s
viscosity index||tt ||Burning point, ℃
Flash point (opening), ℃
Not less than
Not higher than
Not lower than
Corrosion (Ta copper Tablet, 100℃, 3h) level is not greater than the foaming property (24℃), ml:
Foam tendency
Foam stability
Not greater than
Not greater than | | tt |
Oxidation stability, h
Mechanical impurities, %
Moisture, %
Water-soluble acid or alkali
Carbon residue (before additives), %
not greater than
not greater than
not less than
not greater than
not big hand
N15
GB5904- 86
Quality index
22
N32
N46
N68
13.5~16.519.8~24.228.8~35.241.4 -50.661.2~74.890
- 9
165
175
Note: ① The manufacturer can provide oil with a lower pour point according to the agreement between the supply and demand parties. 190
②The foam stability is "0", which allows discontinuous small bubbles around the measuring cylinder. 1
100
30
Rust-free
1000
0.01
TraceswwW.bzxz.Net
None
Report
200
③The oxidation stability index is randomly checked once a year, but the products must be qualified every time they leave the factory. 3 Packaging, marking, storage and transportation
The packaging, marking, storage, transportation and delivery acceptance of this product shall be carried out in accordance with SY2000. 4 Sampling
Sampling is carried out in accordance with GB4756, and 2L is taken as inspection and retention samples. 210
N100
90.0~100
220
30
Test method
GB3141
GB265||tt| |GB2541
GB3535 and
Note
GB267
GB5096
SY2669 and
Note②
SY2683||tt ||SY2674
(use distilled water)
SY2680
and note ③
GB.511
GB260
GB259||tt| | GB268 | The main drafters of this standard are Cai Jiaohua, Lin Caifang, and Zhou Jinzhuang.
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