TY  - BOOK
ED  - Bureau of indian standards
TI  - Methods of sampling and test (physical and chemical)for water and waste water : Part 18 volatile and fixed residue(total,filterable and non-filterable)/1st rev
U1  - 628.1/.3:543.3:543.813 
PY  - 1993///
CY  - New Delhi
PB  - Bureau of indian standards
KW  - IS:3025(Part 18)-1984
ER  -