000 00220nam a2200073 4500
080 _a
_b
245 _aIS: 1448 (p 1) - 1971; Neutralization number by potentiometric titration P 1=
700 _aBureau of Indian Standards
260 _aNew Delhi
_bBIS
_c1972
300 _a13p
999 _c34059
_d34059