Document 5bL2drrXXJ8DgnygrjaOVx7bV

/ . . . General Offices - St. Louie 66, Mo. November 12, 1962 Pydraul National Coal Board of Great Britain Your memo - 11/2/62 Kr. C. B. Ammons General Offices Attached are two BUBsnariea of toxicity and cafe handling data; one for Pydraul F-9 and one for\Pydre.ul 150 I doubt that thee will persuade the National Coal Board to tala* , fa v crabla view of the uac of the PytiLrauls in underground miiwts. I would not be concerned about the Incidental exposure of ingesting either of then Fydrauls by contaminating s&mdwichec, etc., with the fluid on unwashed hands. The rce.1 problem with these fluids is the poesibility cf: 1. Repeated and prolong*^ akin contact can lead to "defatting" of the- skin such ait might occur with paint thinner. Th loss cf the nonml fata and oils of the sicin leads? tc chapping, cracking and possible infection. 2. Karo important, the components of the Fydrsmls can be absorbed through the unbroken skin with the danger of subsequent systemic effects. Ve would hesitate to reccasaecd the us* of these fluids where wcrloaen would be exposed day-in and. day-out to skin contamination such as ic normally the experience of a mechanic repairing automobiles in the typical garage-. perhaps this is not a good analogy but it is the beet I can offer. I EPW:sf Elmer P. Wheeler DSW 584830 WATER_PCB-SD0000017751