Selection of gas detection instrumentation

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      <subfield code="a">Selection of gas detection instrumentation</subfield>
      <subfield code="c">by Michael D. Shaw</subfield>
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      <subfield code="a">Increasingly, the safety specialist and industrial higienist are being called upon to recommended or select air sampling instruments and systems. Here is a guide to the often bewildering array of choices. This article includes: application; round-the-clock or intermittent; results; area size; environmental factors</subfield>
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      <subfield code="g">Vol. 124, nº 4, October 1981 ; p. 35-37</subfield>
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