000 00983nam a2200265 a 4500
001 00334359
003 PWmBRO
005 20240602094923.0
008 821203s1982 mdu a f0001 eng l
082 0 0 _a622 s
090 0 0 _aVF
_b546.
_b75165/L923g
100 1 0 _aLoya, Ernest W.
245 1 0 _aGravimetric preparation of primary standard gas mixtures in the parts per trillion range
_cby Ernest W. Loya, Charles A. Seitz, and David E. Emerson
260 0 0 _a[Avondale, Md.]
_bU.S. Dept. of the Interior, Bureau of Mines
_c1982
300 0 0 _a4 p.
_c28 cm
490 1 0 _aReport of investigations / United States Department of The Interior, Bureau of Mines
_v8643
650 0 0 _aHelium
_xAnalysis
650 0 0 _aChemistry, Analytic
_xQuantitative
700 1 0 _aSeitz, Charles A.
700 1 0 _aEmerson, David E.
840 0 0 _aReport of investigations (United States. Bureau of Mines)
_v8643
942 _2ddc
994 _a001001865 83010 0001
999 _c4112
_d4112