Document qmdD54NakzDDB77Yrx1yLnNRj

C O M PA N Y "'R 27 1967 6670 Ea&t Flotilla Street Los Angeles. California 90022 (213) RAymond 3-2492 April 24, 1967 Mr. Jim Galligan Esco Corporation 2141 North West 25th Avenue Portland, Oregon \j A U Dear Jim: I hope the Pydraul samples have arrived by now. If not please let me know, as they were mailed last week. You may want to use the attached complete medical analysis en leu of duplicating this medical investigation yourself. Younger Laboratories completed the analysis on our Pydraul 312 (then a developmental fluid labeled MCS 312) on November 12, 1964. It's a pretty complete investigation. Please note conclusions that the vapors, were practically non-toxic under press conditions. It Is classed as a slight skin and eye irritant under test conditions. As a suppliment, I'm attaching a copy of the "Toxicity and Safe Handling Information" on Pydraul 312 by Dr. R. Emmet Kelly. According to the local Garlock office, the Chevron packing should be replaced. They had no record of a number 421 packing, so I assumed it was their number 432 cotton-duck-rubber material. Their suitable replacement is a number 433 butyl packing. Compatible packings are also offered by many of the companies listed in our conversion booklet a copy of which is attached. We look forward to serving you through our Pydraul Fluids. Sincerely, DRP:ga Enclosure a D.R. Pogue DSW 018611 STLCOPCB4005155