BUREAU OF INDIAN STANDARDS IS : 3025 (PART 1) 1987 METHODS OF SAMPLING AND TEST (PHYSICAL AND CHEMICAL) FOR WATER AND WASTEWATE - 4TH ED. REP. 2008 - NEW DELHI BUREAU OF INDIAN STANDARDS. 1987 - 10 Subjects--Topical Terms: METHODS OF SAMPLING AND TEST Dewey Class. No.: 624 / BUR