Document xj1106aG095XD7qx6d0Z7jNzJ

1I T9 See Distribution MM M. M. O'Mara r <CUS AUNT ON AKH(V< OCN4N7MCMT * SCOO. NO. nCUD fMT on MOON OCNANTmCMT O SUM. NO. Avon Lake Technical Center Calibration of MSA Exnloaimeter UATK Y4* ucttkm OATS THIS birtU June 6, 1974 A MSA Modal 2A Exploslmeter (#414-1) was calibrated against various concentrations of VCM in air. All standards were prepared by metering the VCM standard (10,000 ppm) and air through calibrated flowmeters. Each of the three standards were checked with the Century OVA Analyzer. The following calibration data was obtained: VCM. ODB 1,000 5,000 10,000 Exnlosimeter Readins. Z 5 18 32 The explosimeter readings were reproducible to within 10Z of the value reported. The calibration curve is fairly linear and is shown in the enclosed figure. ch Distribution: A. Vittone E. D. Scott B. A. DiLiddo B. M. G. Zwicker E. G. Schwaegerle J. L. Nelson Plant Manager* P^antSafetjJ&o^neera H. waitemate E. W. Harrington R. M. Kreager A. L. Schultz L. B. Crider F. E. Krause J. Alten MW/File Enclosure /f/. G'/l/ldA** M. M. O'Msra BFG25219 TOOZfrKTZ cv. ,* utno. m U.O.A. ...Sm C a lib ra tio n o f ) Sxplosimeter Model 2A