1油液的洁净度：油液的洁净度就是油液污染程度的定量描述油液的洁净度的评定方法油液中颗粒尺寸的分布：对数座标以对数/线性log/log2洁净度等级表示法：NAS1638、SAE749D、IS04406NAS1638 油液洁净度等级（100ml 液压油液中颗粒数）污染度等级颗粒尺寸范围（|im）5-1515-2525-5050-100>10000125224100250448201500891631210001783261320003566311244000712126224580001425253458616000285050690167320005700101218032864000114002025360649128000228004050720128102560004560081001440256115120009120016200288051212102400018240032400576010242颗粒数/mlR浓度等级数大于小于（等于）80,000160,0002440,00080,0002320,00040,0002210,00020,000215,00010,000202,5005,000191,3002,50018SAE749D 油液洁净度等级（计数法）液压油污染等级试行标准（每 100ml）尺寸范围|dm污染等级01234567-10-5待定5-1027004600970024000320008700012800010-2567013402080536010700214004200025-5093210380780151031306500待定50-1001628561102254301000>10013511214192*电力行业标准 DL/T571-95（SAE749D 油液洁净度等级）R5/15 例 1：大于 5 微米的颗粒浓度为 400 颗/ml.大于 15 微米的颗粒浓度为 65 颗/ml.则 ISO=16/13例 2：大于 5 微米的颗粒浓度为 16,030 颗/ml.ISO 油液洁净度等34洁净度等级对照表ISO每毫升颗粒数AC 粉尘重量MILSTDNASSAE代码>10|im水平毫克/升1246A1638749 等级(1967)（1964）26/2325/2323/2010070021/184,5001220/182,40050020/172,3001120/161,4001019/161,2001018/155809617/142803008516/1314017415/12706314/124020014/11355213/10144112/993011/852510/8310010/7110/69/608/5007/5506/35/2252/10俄国「OCT 标准工业液污染度分级「OCT17216-71工作液污100+厘米 3液体容积里杂质微粒数不大于下列数值杂质质微米尺寸，微米量不大6染度等级>1-2>2-5>5-10>10-25>25-50>50-100>100-200纤维于％00800400328410160080063168211600125321632250633241312563624250125123550025025416100050050621720001000100124284000200020025639800040004005012410160008000800100255113150016000160020050101263000315003150400100201363000630080020040141250001250016004008015250003150080016016500063001600315171250031506307GJB中华人民共和国国家军用标准FL9150GJB420A-96飞机液压系统用油液固体污染度分级Solidparticlec...
