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Posted By Christopher Boocock
We used to have a significant machine shop with 24 hour working. However, most of the routine & repetitive machining has now been outsourced, and we now effectively have a "jobbing" workshop admitedly with almost every conceivable type of rotary & reciprocating machine tool.
Although we use biocides & regularly circulate & flush through the (solouble type oil) metal working fluids, I have been asked about concentration & pH measurements, bacteria dip slide measurements & refractometers to check strengths.
Where, when & why would it be most appropriate to use these techniques? For 24 hour production working or for "jobbing" machine shops.
Comments, opinions & experience welcome!
Thanks
Chris.
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Posted By Chris Packham
Chris
One of my special interests. Try contacting me off the forum and I will see what I can do to help.
Chris
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Posted By John Murgatroyd
"A study of cancer risk in workers exposed to metalworking fluids suggests common study approaches systematically under-estimate the true extent of the problem. US researchers say failure to take adequate account of the time lag between exposure and development of an occupational cancer - the latency period - means a significant proportion of work-related cancers can be missed. The Harvard University team looked at the exposure-response relationship between metalworking fluid exposure in the car industry and rectal cancer. They found when their study took account of the time lag effect, the proportion of cancers found to be caused by work was almost 50 per cent higher. The authors conclude their analysis 'has shown stronger evidence for a causal association between straight metalworking fluid and rectal cancer than was previously described using standard analytical methods.' They recommend their methods should be applied to other cancer studies"
Elizabeth J Malloy, Katie L Miller and Ellen A Eisen. Rectal cancer and exposure to metalworking fluids in the automobile manufacturing industry, Occupational and Environmental Medicine , volume 64 , pages 244-249, 2007
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