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| 02247cam 2200433zi 4500 |
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| 001 | 9.870038 |
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| 003 | CaOODSP |
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| 005 | 20221107163020 |
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| 006 | m o d f |
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| 007 | cr nn||||||||| |
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| 008 | 190315t19711972oncad obt f000 0 eng d |
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| 040 | |aCaOODSP|beng|erda|cCaOODSP |
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| 041 | |aeng|bfre |
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| 043 | |an-cn--- |
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| 086 | 1 |aM38-1/250-1971E-PDF|zM38-1/250 |
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| 100 | 1 |aCochrane, T. S., |eauthor. |
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| 245 | 10|aComparison of dust sampling instruments / |cT.S. Cochrane, G. Knight, L.C. Richards and W. Stefanich, Mining Research Centre. |
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| 264 | 1|aOttawa : |bDepartment of Energy, Mines and Resources, Mines Branch, |cOctober 1971. |
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| 264 | 4|c©1972 |
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| 300 | |a1 online resource (1 volume (in various pagings)) : |billustrations, charts, figures. |
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| 336 | |atext|btxt|2rdacontent |
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| 337 | |acomputer|bc|2rdamedia |
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| 338 | |aonline resource|bcr|2rdacarrier |
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| 490 | 1 |aResearch report ; |vR 250 |
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| 500 | |aCover title. |
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| 500 | |aDigitized edition from print [produced by Natural Resources Canada]. |
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| 500 | |a"October 1971." |
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| 504 | |aIncludes bibliographical references. |
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| 520 | |a"This report describes many comparisons between dust sampling instruments. These narrow down to the very wide range in ratio of dust concentrations indicated by any two types of dust sampling instruments in different dust clouds and, therefore, the need to consider physiological factors in applying dust sampling instruments to assess health hazards. Changes in design that are apparently minor can have a large effect on the respirable dust concentration indicated by a sampler that has an aerodynamic size selector"--Summary, page i. |
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| 546 | |aIncludes summary in French. |
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| 693 | 4|aDust sampling instruments |
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| 700 | 1 |aKnight, G., |eauthor. |
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| 700 | 1 |aRichards, L. C., |eauthor. |
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| 700 | 1 |aStefanich, W., |eauthor. |
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| 710 | 1 |aCanada. |bDepartment of Energy, Mines and Resources. |
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| 710 | 1 |aCanada. |bMines Branch. |
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| 710 | 1 |aCanada. |bMining Research Centre. |
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| 830 | #0|aResearch report (Canada. Mines Branch)|vR 250.|w(CaOODSP)9.855660 |
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| 856 | 40|qPDF|s4.78 MB|uhttps://publications.gc.ca/collections/collection_2019/rncan-nrcan/m38-1/M38-1-250-1971-eng.pdf |
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