產品關鍵字搜尋
ASTM D4684
低溫下機油的屈服應力和表觀黏度的測定，該測試方法涵蓋了在超過45 小時的時間內以受控速率冷卻至–10°C 之間的最終測試溫度後發動機油的屈服應力和粘度的測量和–40 °C。精度適用於 –40°C 至 –15°C 的測試溫度。黏度測量是在 525Pa 剪切應力、0.4s–1 至 15s–1 剪切速率下進行的。發現在該剪切應力下測量的黏度在黏度達到臨界值的溫度與引擎中的臨界泵送故障溫度之間產生最佳相關性。
代理產品
- 功能分類
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方法分類
- ASTM D56
- ASTM D86
- ASTM D91
- ASTM D92
- ASTM D93
- ASTM D97
- ASTM D130
- ASTM D323
- ASTM D381
- ASTM D445
- ASTM D525
- ASTM D613
- ASTM D850
- ASTM D873
- ASTM D892
- ASTM D893
- ASTM D942
- ASTM D975
- ASTM D1078
- ASTM D1160
- ASTM D1290
- ASTM D1655
- ASTM D1796
- ASTM D1881
- ASTM D2112
- ASTM D2266
- ASTM D2272
- ASTM D2386
- ASTM D2500
- ASTM D2509
- ASTM D2596
- ASTM D2624
- ASTM D2625
- ASTM D2670
- ASTM D2699
- ASTM D2700
- ASTM D2709
- ASTM D2711
- ASTM D2782
- ASTM D2783
- ASTM D2885
- ASTM D3233
- ASTM D3241
- ASTM D3278
- ASTM D3702
- ASTM D3828
- ASTM D3829
- ASTM D4007
- ASTM D4052
- ASTM D4172
- ASTM D4206
- ASTM D4294
- ASTM D4530
- ASTM D4683
- ASTM D4684
- ASTM D4737
- ASTM D4741
- ASTM D4742
- ASTM D5134
- ASTM D5183
- ASTM D5188
- ASTM D5191
- ASTM D5443
- ASTM D5453
- ASTM D5481
- ASTM D5504
- ASTM D5623
- ASTM D5771
- ASTM D5773
- ASTM D5800
- ASTM D5845
- ASTM D5853
- ASTM D5949
- ASTM D5950
- ASTM D5972
- ASTM D6082
- ASTM D6277
- ASTM D6335
- ASTM D6371
- ASTM D6377
- ASTM D6378
- ASTM D6417
- ASTM D6616
- ASTM D6667
- ASTM D6729
- ASTM D6730
- ASTM D6733
- ASTM D6751
- ASTM D6821
- ASTM D6839
- ASTM D6896
- ASTM D6897
- ASTM D7011
- ASTM D7097
- ASTM D7098
- ASTM D7153
- ASTM D7183
- ASTM D7215
- ASTM D7220
- ASTM D7236
- ASTM D7345
- ASTM D7346
- ASTM D7371
- ASTM D7467
- ASTM D7619
- ASTM D7621
- ASTM D7647
- ASTM D7667
- ASTM D7668
- ASTM D7689
- ASTM D7777
- ASTM D7797
- ASTM D7807
- ASTM D7833
- ASTM D7840
- ASTM D7945
- ASTM D7963
- ASTM D8009
- ASTM D8073
- ASTM D8174
- ASTM D8175
- ASTM D8183
- ASTM D8447
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