IS: 1448 (P 68) - 1967; methods of test for petroleum and its products P 65 evaporation loss in greases 22 hour drying
IS: 1448 (P 68) - 1967; methods of test for petroleum and its products P 65 evaporation loss in greases 22 hour drying
- New Delhi BIS 1967
- 4p
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