Document Y9jKMGwpvRdZozpj6k0QadZJk

MONSANTO INDUSTRIAL CHEMICALS CO. Sauget, Illinois 62201 Phono: (616) 271-5835 March 15, 1973 General Electric Co. M&PT Laboratory Mr. Robert Devfart, Manager John Street Hudson Falls, N. Y. 12839 Re: Aroclor 1016 Round Robin Laboratory Measurement Dear Bob: Attached are .the water .results from the four areas participating in the round robin testing on Aroclor'1016. These results were given to our laboratory statistician, J. A. Gloeckner. His report in part is as follows: Ten lots were analyzed, each 4 times. Once each by Karl Fisher (VJGK), Aauatestor (Research), Karl Fisher (G.E. - Pittsfield) and Aquatestor (G.E. Hudson Falls). An analysis of variance was' performed on these results. It indicates that although the means of G.E. results is higher (r^2 ppm) than Monsanto's, the difference is not statistically significant. Monsanto - KF G.E. - KF Monsanto - AT G.E. - AT Average 28.1 28.7 29.4 31.2 (ppm) We wish to extend our appreciation to Al-Jenny at Pittsfield, Bill Haynes of our Corporate Research and your laboratory for helping us in this program. Very truly yours dy attach. cc: J. C. Bryant P. G. Benignus W. M. Haynes R. II. Munch J. R. Savage A. L. Jenny - G.E A. E. Leisy J. R. Anal. G. A. Hippe W. C. Engman^^gJ J. K. Grant H. J, Horner a unit of Monsanto Company Kuster, Lab Supervisor DSW 310191 STLCOPCB4070178 1 A- Page 2 Attachment Sample Round Robin 1 2 3 4 5 6 7 8 9 10 March 15, 1973 Aroclor 1016- Results WGK KF (water in ppm) GE GE Mon.Res KF AT AT 28 23 26 29 33 21 23 23 25 40 41 35 31 36 40 41 20 20 21 25 36 30 33 28 48 57 6l 53 19 21 21 19 " 17 17 20 17 24 22 26 24 DSW 310192 STLCOPCB4070179