Document QMJ4NK0B5pXGvYeR1ej1QnJy8

Honeywell December 9, 1974 Conoco VCM Plant Box 605 Westlake, La. 70669 Attn: Paul Fetzer Dear Mr. Fetzer : We have recently supplied several Model 1000 Chromatographs to YOUR PLANT WHICH ARE APPLIED FOR VlNYL CHLORIDE MEAUSREMENT IN AM BIENT AIR. WE HAVE SPECIFIED THE ACCURACY OF THE MACHINE TO MEET OR EXCEED THE OSHA REQUIREMENT IN A LETTER TO Mr. LEON VERNON, GEN ERAL Manager, Conoco Plastics, Saddlebrook, N.J. dated Octover 23, 1974. The accuracy of these instruments is unaffected by other com ponents in the ambient air unless these components directly interfere WITH THE SEPARATION CHARACTERISTICS OF THE COLUMN OR ALTER DETECTOR SENS I TI V I TY. In the event that other COMPONENTS IN THE AIR ARE SUSPECT OF INTERFERENCE, SUCH AS METHYL CHLORIDE, A SUITABLE SELECTION OF COL UMN CONFIGURATION AND DETECTOR SENSITIVITY MUST BE MADE TO PRESERVE THE ACCURACY OF THE INSTRUMENT. The accuracy within tolerences, of the Model 1000 Chromatograph, AS IT IS CURRENTLY APPLIED FOR VCM MEASUREMENT IN AMBIENT AIR WILL NOT BE AFFECTED BY THE FOLLOWING COMPONENTS LISTED. OF COURSE, SUB JECTING THE INSTRUMENT TO EXCESS CONCENTRATIONS OF ANY COMPONENT WILL IMPAIR THE OPERATION OF THE ANALYZER. 1. Methane, Ethylene, Propylene, Benzene 2. Ethyl Chloride, Chlorobenzene 3. 1,2 Dichloroethane, 1,1 Dichloroethylene 1,1 Dichloroethylene, 1,1 Dichloropropane Dl CHLOROBUTENE, Ci.S & TRANS 1,2 D 1 C H LO R 0 E T H Y L E N E 4. Chloroform, 1,1,1 Trichloroethene 1,1,2 Trichloroethane, Trichloroehtylene 5. Carbon Tetrachloride, 1,1,2,2 Tetrachloroethylene, Tetrachloroethylene VVC 000002091 HONEYWELL INC., 6625 McGREW, HOUSTON, TEXAS 77017, TELEPHONE 713/645-4911 6, Water, Hydrogen Chloride Very truly yours fam E. General Manager Process Analyzer Center EM:po cc: Leon Vernon, General Manager, Conoco Plastics Robert Walston, Conoco Job file VVC 000002092