Quality of mine air; dust content and cooling power

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008			850908s1948 sa a b 000 0 eng
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040	⊔	⊔	‡aDLC ‡cUMR ‡dOCL ‡dCUY
050	⊔	⊔	‡aTN301 ‡b.T7
082	⊔	⊔	‡a622.46
090	⊔	⊔	‡a TN301 ‡b.T7
110	2	⊔	‡aTransvaal and Orange Free State Chamber of Mines. ‡bGold Producers' Committee.
245	1	0	‡aQuality of mine air; ‡bdust content and cooling power.
260	⊔	⊔	‡aJohannesburg, ‡c1947 [i. e. 1948]
300	⊔	⊔	‡aiii, 56 p. ‡bdiagrs. ‡c24 cm.
500	⊔	⊔	‡aErrata slip and addendum leaf inserted.
500	⊔	⊔	‡aPublished by the chamber under its earlier name: Transvaal Chamber of Mines.
504	⊔	⊔	‡aIncludes bibliographies.
538	⊔	⊔	‡aMode of access: Internet.
650	⊔	0	‡aAir ‡xAnalysis.
650	⊔	0	‡aMine ventilation.
740	0	1	‡aMine air.
CID	⊔	⊔	‡a006256953
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DAT	1	⊔	‡a20120815184702.0 ‡b2023-05-09T18:01:31Z
DAT	2	⊔	‡a2023-05-09T17:30:02Z
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