Noack 蒸發(fā)損失測定儀
- 公司名稱 北京迪索儀器有限公司
- 品牌
- 型號 Noack
- 產(chǎn)地 德國
- 廠商性質(zhì) 經(jīng)銷商
- 更新時(shí)間 2023/8/15 21:47:26
- 訪問次數(shù) 3470
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石油化工、煤炭、材料等儀器，vpo分子量測定儀，石油蒸餾儀，閃點(diǎn)儀，傾點(diǎn)儀，量熱儀，工業(yè)分析儀，灰熔點(diǎn)儀，原子吸收測定儀，接觸角儀，汞測定儀，砷測定儀等。
Noack蒸發(fā)損失測定儀
The thermal requirements on motor oils in particular have risen considerably over the last few years. This consequently means that the testing of these motor oils and lubricants has nowadays become more important for reasons of quality control and operating safety. Evaporation losses at high temperatures generally lead to an increase in the oil consumption and additionally cause a detrimental change in the lubrication properties of the oils.
The test method is standardized in DIN 51581, CEC L-40-A-93 and ASTM D5800. The oil sample is heated in the evaporation crucible, and subsequently retained at the testing temperature for exactly 60 minutes. Whilst the testing temperatures can generally be as high as 350癈, motor oils are usually tested at
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