NB/SH/T 0869-2013 Translated English of Chinese Standard (NBSHT 0869-2013, NB/SHT0869-2013, NBSH/T0869-2013): Standard test method for oil separation from lubricating grease by centrifuging (Koppers method)This Standard applies to the determination of oil separation tendency of lubricating grease under high centrifugal force. This Standard specifies the determination method of oil separation from lubricating grease by centrifuging. |
Contents
| 3 | |
Scope | 4 |
Method summary | 6 |
Sampling | 7 |
Calculation | 9 |
Report | 10 |
Precision and deviation | 11 |
Appendix A Informative Calculation example | 13 |
Common terms and phrases
24 h test 24 Oil separation 96 Oil separation according to Formula application ASTM Calculate the oil Calculate the volume calculation results Centrifugal acceleration level centrifugal force centrifuge tube mouth centrifuge tube needs cubic centimeters cm3 cumulative test Cumulative time t/h decimal place definitions and symbols determination deviation dispersed document exceeds 24 h expressed fixed-axis rotor g of lubricating G value GB/T grease by centrifuging h and 12 hours h increases by less inner diameter integer inverted test centrifuge liquid column liquid lubricant lubricating grease according lubricating grease sample lubricating grease surface measure the oil Method for Oil millimeters oil separation rate Petroleum relative centrifugal acceleration report number rotates rotor angle round separated oil separation from lubricating shown in Figure SINOPEC stable Standard test centrifuge tube Test Method test period test results test temperature test time exceeds thickener total volume volume fraction volume of lubricating volume of separated