Document ZnvMJ7rwG3keR1kNRadDm0xg7
St. Louif
Mr. S. R. Clement - Phos. Mr. C. M. Williams - "
Mr. D. Dunwody New York
' October 10,. 1952
,-
E. I. DuPont de Nemours, Inc.. Wilmington, Delavrare
Reference your memorandum of October 1, the specifications mentioned in Mr. G. H. Collins letter of January 9, 1950 for Aroclor 1254 are as follows:
Aroclor 1254 - Specifications
General Appearance Color Cloud
Viscosity Specific Gravity
Acid Number Refractive Index Chlorine Test
Pale yellow viscous oil
10 Max. . 1/4 Max.
30-50" #25 cup @ 25C. 1.52-1.56 @ 25/25C. 0.05 Max.
1.637 - 1.639 @ 25C. Positive test for chlorine
You will observe that Viscosity is shown as 30-50& #25 cup % 25C.' Therefore, DuPont has never actually given us speci fications for viscosity for Aroclor 1254 of 46.5 Min. and 47.5 Max.
I am returning tie file you attached and will discuss this further with you next week.
John B. Trotter
JBT:dth
OSVM 550808
STLCOPCB4089225