You are asked to evaluate employees\u2019 exposures to methyl n-amyl ketone during a painting operation. After careful consideration, you choose NIOSH Method 2553 for the sampling. You can access the method by clicking the link below:
\nNational Institute for Occupational Safety and Health. (2003). Ketones II: Method 2553. In P. M. Eiler & M. E. Cassinelli (Eds.), NIOSH manual of analytical methods (4th ed.). Retrieved from http:\/\/www.cdc.gov\/niosh\/docs\/2003-154\/pdfs\/2553.pdf
\nYour pre-sampling and post-sampling pump calibrations using a primary standard are both 0.05 L\/min. You collect personal samples on two employees working in the operation. The samples are collected for 430 minutes (Sample 1) and 440 minutes (Sample 2).
\nCalculate the sample volumes for each of the samples.
\nThe laboratory reports that the front section of Sample 1 contains 5,000 \u00b5g of methyl n-amyl ketone and the back section contains 200 \u00b5g of methyl n-amyl ketone. The front section of Sample 2 contains 4,000 \u00b5g of methyl n-amyl ketone and the back section contains 50 \u00b5g of methyl n-amyl ketone. Neither the front nor back sections of the field blank you supplied contain any detectable levels of methyl n-amyl ketone.
\nCalculate the concentrations of the two personal samples in \u00b5g\/L and mg\/m\u00b3.
\nConvert the result to ppm (MW for methyl n-amyl ketone = 114.2). Note: Use the ideal gas constant of 24.45.
\nShow all the steps for your calculations.
\nYou then reference OSHA\u2019s Table Z-1 and find that the 8-hour TWA PEL for methyl n-amyl ketone is 100 ppm
\nDiscuss how the results of the two personal samples you collected compare to the OSHA PEL, and describe the sampling method you implemented.
\nYou also look up the ACGIH TLV for methyl n-amyl ketone and find that the TLV is 50 ppm as an 8-hour TWA exposure.
\nDiscuss how the results for the two personal samples compare to the ACGIH TLV.
\nDiscuss whether you would recommend comparing the results of your sampling to the OSHA PEL or the ACGIH TLV. Include your rationale for the choice, and explain how you would rationalize your choice to your employer.
\nThe case study should be a minimum of three pages in length, and you should cite the NIOSH document using APA style.<\/p>\n","protected":false},"excerpt":{"rendered":"
You are asked to evaluate employees\u2019 exposures to methyl n-amyl ketone during a painting operation. After careful consideration, you choose NIOSH Method 2553 for the sampling. You can access the method by clicking the link below: National Institute for Occupational Read More …<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-428206","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/www.benedictsol.com\/blogs\/wp-json\/wp\/v2\/posts\/428206","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.benedictsol.com\/blogs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.benedictsol.com\/blogs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.benedictsol.com\/blogs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.benedictsol.com\/blogs\/wp-json\/wp\/v2\/comments?post=428206"}],"version-history":[{"count":0,"href":"https:\/\/www.benedictsol.com\/blogs\/wp-json\/wp\/v2\/posts\/428206\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.benedictsol.com\/blogs\/wp-json\/wp\/v2\/media?parent=428206"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.benedictsol.com\/blogs\/wp-json\/wp\/v2\/categories?post=428206"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.benedictsol.com\/blogs\/wp-json\/wp\/v2\/tags?post=428206"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}