000 00290 a2200121 4500
080 _a541.132.3
_bA 512 S
245 1 _apH measurement
260 _aPhiladelphia
_bAmerican Society for Testing Materials
_c1946
650 _apH Measurement
100 _a
_d
300 _a79 p.
901 _a24130
999 _c26633
_d26633