IS: 1448 [P - 4] - 1984 (Reaffirmed 1989); Methods of test for petroleum and its products Part 4 Ash, sulpated ash and water soluble ash
IS: 1448 [P - 4] - 1984 (Reaffirmed 1989); Methods of test for petroleum and its products Part 4 Ash, sulpated ash and water soluble ash
- New Delhi BIS 1984
- 10p
/
/