Document kmO0jZrpeaveb5JxB67G1n7vE

CertainTeed Corporation Pipe & Plastics Group P.O. Box 253 Sulphur, LA 70663 (318) 882-1441 September 4, 1984 Mr. R. W. Ormsby Manager, Safety Air Products and Chemicals, Inc. Box 538 Allenton, PA 18105 Dear Mr. Ormsby: RE: Automatic Shortstop System Questionnaire I have attached the Automatic Shortstop System Questionnaire. We do not have a shortstop system; but, we do plan to install an automatic shortstop system by the first quarter of 1985. Therefore, the answers 2 through 11 depict what we intend to have. CertainTeed Corporation's Lake Charles Polymer Plant is a five reactor 50 cubic-meter vessel bulk polymerization plant. If you need more information, please let me know. Best regards, C. A. Gellner Plant Manager Lake Charles Polymer Plant dap Attachment - Automatic Shortstop System Questionnaire pc Vinyl Chloride Safety Association 1984 Folder CTL020179 01-90-0283 I VINYL CHLORIDE SAFETY ASSOCATION 1984 Automatic Shortstop System Questionnaire 1. Do you have a fully automatic shortstop kill system? _ 2. Is the same shortstop system used for control and for killing of the batch? j _ 3. What process measurements are used to trigger shortstop addition? a. Pressure X b. Temperature c. Loss of agitation High amps X Low amps ___ RFM____ d. Loss of power __ X e. Other 4. Are combinations of measurements required to add shortstop such as high T and high P or 2 out of 3 voting system on pressure? Explain. Normally, one of those issues at the discretion of the Supervisor. 5. Can the operator activate the kill system prior to it being activated automatically? The system, can be automatic. The operator can manually operate the system. 6. Is the system a. Hardwired X b. Part of the main computer system c. Other (Explain) ____ 7. At what levels above set point will the automatic system take over a. Pressure Greater than 25 pounds above normal b. Temperature c. Other____ CTL2Ol8o .. ./2 Automatic Shortstop System Questionnaire (Continued) 8. How long has the automatic system been in place? Plan to install by 1st quarter 1985. 9. Number of releases since automatic system installation. Q Mjmber of releases prevented since automatic system installation. ____ Number of spurious failures (shortstop added because of instrument failure when it was not needed) since automatic system installation. ____ 10. Does the operator have any ability to bypass the automatic shortstop kill system? , We do not project the ability of the operator to bypass the shortstop kill system. _________________________________ _ 11. What is your overall opinion of the automatic shortstop system? would you do it again? Please comment. Nonapolicable._________ YOUR RETURN ADDRESS FCR SURVEY REVIEW IF DESIRED. MAIL RESPONSES TO; 1744J/jrw R.W. Ormsby Manager, Safety Air Products and Chemicals, Inc. Box 538, Allentown PA 18105 U.S.A. Telephone: (215) 481-4911 CTL020181