Document 4Jdk4eBOJD7KnMQKnVaE3dLe1

CHLORINATED METHANES PLANT HOW TO SAJELY PREPAIR AN AQUEOUS HCL LINE FOR WORK I. Safety A. HCL in liquid form is a non-flanmable water white solution' that is very corrosive. Exposure to eyes may cause some permanent loss of vision and exposure to skin can cause serious burns. HCL vapors are very irritating to the respiratory passages end may cause serious injury. 1. A full acid suit and respirator are required when breaking into an HCL line (aqueous). II. Procedure A. Wearing full acid suit and respirator, isolate and drain section of line to be worked on. B. If possible, connect water line to isolate section and flush cut for 15 - 30 minutes. 1. After line has been washed out, work may be performed wearing minimum protection (bard hat, monoggles, rain coat, rubber boots and rubber gloves). 2. If section can not be flushed out, maximum protection must be work (full acid suit and respirator). 3. Issue Red Tag Master and place tags in proper places. H. L. Mack -0 9A5/7-2-----------esn OONFTDFNTTAI DO 008935