This post is a little stale, but I will add that hexavalent chrome is the concern when welding and grinding materials containing chrome. Part of the inspection work I do at the refinery is ongoing inspection during weld overlay work inside of vessels. The overlay material generally has a high chrome content. We go over a lot of safety information prior to these jobs, welders who are working continuously in this environment are required to be in enclosed helmets with breathing air supplied from outside the vessel. Personnel such as myself who are in the area periodically can do so with a proper respirator. However, while arc gouging chrome material is in process inside a vessel generally only the welders with the sealed helmets are allowed inside. I�ll attach an OSHA link on hex-chrome.
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Today's Featured Article - Restoring a John Deere 2010 Diesel Tractor - by Jim Nielsen. Following seven years working in California's Silicon Valley, my wife, baby son and I moved back to Australia to retire. We bought a small 'farm' of about 50 acres near Bendigo, in the state of Victoria. I soon found that it would be very useful to have a tractor around the place for things such as grading our long drive and brush-hogging the fields. I was also embarking on planting 1000 eucalyptus trees, and hence I would need a ripper, small disk plow, sprayer etc. to get these things accompli
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