Document 8Ra3ae0D89nyKOG1aOqMnLdmZ
--=s f'ue.
fhd L;ab
Oklahoma City PVC Plant Progress Report March, 1990
RECEIVED
LABORATORY - R.S. Battles A. CUSTOMER RELATIONS
Complaints:
APR 2 3. 90
WILLIAM L. McCLAIN
There was one complaint in March. Cotter merchandise received one car with wet resin. The car was returned to OKC with two compartments full of wet resin.
B. RESIDUAL VINYL CHLORIDE
Shns
D301
Average Std. Dev. 6-Month Avg. Cpk Spec Limit
1.1 0.2 1.1 1.5 2.0
279 84
315 0.5 400
C. PARTICLE SIZE ANALYSES
302
238 94
264 0.6 400
mm
247 84
271 0.6 400
3Q4
242 97
291 0.5 400
P3Q5
299 125 274 0.3 400
P306
222 107 186 0.6 400
Shipments
40 60 80 100 120 140 200 PAN %>140
Average Std. Dev. 6-Month Avg. Cpk Spec Limit
0.0 0.8 28.2 26.2 22.3 13.4 6.8 1.8 8.7
0.2 2.1
0.4 0.8
0.0 1.7 29.9 26.0 20.7 12.9 6.1 1.6 7.6
2.7 247
5.0 20.0
D. MOISTURE ANALYSES (Specs : Ships .13 Max, Customers 0.30 Max)
SHIPMENTS
Average Std. Dev. 6-Month Avg. Cpk (internal) Spec Limit (Internal) Cpk (Customer Spec) Spec Limit (Customer)
0.09 0.01 0.09 1.3 0.13 7.0 0.3
E. BULK DENSITY (Specification: 0.510 - 0.576) (Reported "As Is"
Average Std. Dev. 6-Month Avg. Cpk Spec Limit
SHIPMENTS
0.571 0.010 0.564 2.0 0.510
OO0QO6333
Oklahoma City PVC Plant Progress Report March, 1990
LABORATORY - (Cont'd)
F. INHERENT VISCOSITY (Specification: 0.895 0.95) Shipments
Average Std. Dev. 6-Month Avg. Cpk Spec Limit
0.902 0.009 0.909 0.3 0.895
G. COLOR
Shipments:
L a __ b
Average Std. Dev. 4 month average Cpk Spec Limit
96.2
-0.3
0.6
98.6
0.3
0.00
97.0(Min)
2.2 0.1 1.8 0.03 3.0(Max)
CONTAMINATION
Shipments
Black
Brown
Average Four Mo. Avg. Cpk (Pipe) Cpk (Siding) Cpk (Type 1) Spec Limit (Pipe) Spec Limit (Siding) Spec Limit (Type 1)
9 23 10 24
--2.8 3.3
35 100
Total
32 34
3. 1.
150
75
Bulk density lower spec changed to .510 from .512 in December. IV spec changed to .895 to .95 (from .90 to .95) in December. B-color spec changed to 3.0 (from 3.5) in December. Color procedure was modified in mid-January.
CCR 000006334