000 004170000a22001450004500
027 _aBS 1747 : Pt. 1 : 1969
_q1969
041 _aeng
080 _a628.5:551.510.42:551.508.79
_b
942 _cSD
110 _aBRITISH STANDARDS INSTITUTION
245 _aBS 1747 : Pt. 1 : 1969 : methods for the measurement of air pollution : deposit gauges
260 _aLondon
_bB.S.I.
_c1969
300 _a15p.
500 _aSTD476
999 _c24772
_d24772