000 00273nam a2200073 4500
080 _a
_b
245 _aIS:1448 (P : 1) - 1971 : Methods of test for Petroleum and its Products part 1 Neutralization number by Potentiometric Titration
700 _aINDIAN STANDARDS INSTITUTION
260 _aNew Delhi
_bBIS
_c1972
300 _a13p
999 _c26519
_d26519