Methods of sampling and test (physical and chemical ) for water and wastewater  Part 20 Dispersion 

 - New Delhi  Bureau of Indian standards  1985 
<br/><br/><label>Subjects--Index Terms: </label>IS:3025(Part20)-1984 
<br/><br/><label>Dewey Class. No.: </label>628.1/.3:532.696.22