Document RpROrmO3gbvMdGDENOpQ3KQ5z

/_,) . General Offices - St, Louie 66, Mo. November 12, 1962 Pydraul National Coal Board of Great Britain Your raeao - 11/2/62 Hr. C. B. Ammons General Offices Attached are two sussnaries of toxicity and cafe handling data; one for Pydraul F-9 and one for\Pydraul 150* I doubt that these will persuade the National Coal Board to tala* e. favorable view of the use of the PydLraule in underground miiwts. I would not be concerned about the incidental exposure of ingesting either of these Pydraula by contaminating sandwich*c, etc., with the fluid on unwashed hands. The real problem with these fluids is the possibility of: 1. Repeated and prolonged skin contact can lead to "defatting" of the- ekn such as slight occur with paint thinner. Tfr loss of the nonml fats and oils of the skin leads? tc chapping, cracking and possible infection. 2. Karo important, the components of the Fydrauls can be absorbed through the unbroken skin with the danger of subsequent systemic effects. V* would hesitate to reconmtcsd the us* of these fluids where workmen would b exposed day-in and. day-out to skin contamination such as ic normally the experience of ft mechanic repairing automobiles in the typical garage-, perhaps this is not a good an&lcgy but it Is the beet I can offer. I EPW:sf Elmer P. Wheeler DSW 584830 TOWOLDMONOQ46065