Document B8rNK1x35x8Q5NZ7k0yneXBQo
1-184 (SOM)
INTER-OFFICE MEMO TENNECO CHEMICALS,
To Route List
AT
fhom
Carr
AT Burlington
subject Tentative Color Specifications
date June 28, 1973
copy Tov/piTe
Reference: Memo: H.B, Carr to M. Freifeld, dated January 31, 1973
In the referenced memo, a program was described for the development of color specifications on raw materials and finished compounds based on quantitative color readings obtained on a Gardner XL-10 Color Difference Meter.
The Gardner instrument provides measurements of the Adams Color Space (L, a and b values), as per ASTM D-2244. A three-dimensional plot of these color coordinates is attached and provides the following definitions:
L value - light to dark value; the higher the value, the lighter the color
a value - positive values indicate degree of red shade; negative values indicate degree of green shade
b value - positive values indicate degree of yellow shade; negative values indicate degree of blue shade
In accordance with the schedule outlined in the referenced memo, which was based on the frequency of compound production runs and raw material re ceipts, tentative specifications have been established as shown in Table I (attached).
An actual plot of 1, a and b values is attached that provides an expanded representation of the color coordinates.
Attachments (3), HBC/.jst
Route List
W.A. R,J, M. 1, D.A. D.C. D. J.W.
Britton Eckman Freifcld Gawason Cuarino Hawk Johnson Me Broom
R. Merkel
L.T. O' Hrien
F. Ro osier
Dr. M. Rosen
G, I. Rozand
P. R. Scarito
! R.
Sherman
A. C. Siegel
H.B. Carr
COLORITE 014655
\
COMPOUNDS Group I
TABLE 1 TENTATIVE COLOR SPECIFICATIONS
Compound
38OSD Black 2300 Brown 1 WE S35 LOG WE 644 Natural Colorite VOR-73 Clear Green 2580 Black WE 715 Black 2710C-4 Natural 3098 Clear 6 3192 Black 2901-1 Natural 01 2820 Black (T-6300) 2800 Black 4703 Clear
La b
10.0 + 0.7 23.2 + 1.2 49.7 + 0.8
89.1 1.1 11.5 + 0.9 11.3 + 2.0 11.1 + 1.6 82.1 + 2.6 11.5 + 1.7
11.3 1.5 85.6 + 3.9 13.9 1.2
1.5 + 0.2 9.0 + 0.5 0.2 + 0.2 -0.5 0.5 -0.6 + 0.1 1.2 + 0.3 1.2 + 0.3 0.5 + 0.6 1.3 + 0.2 1.2 + 0.4 0.3 + 0,7 1.0 + 0.2
-0.4 + 0.4 7.9 + 0.7 6.3 -t 0.5 8.2 + 0. 6
-5.0 0.7 -0.5 0. 3 -0.7 0.2 11.7 + 2.2
1.1 0. 2 -0.6 0.4
9.5 + 1.2 -0.7 + 0.4
Insufficient Data Available
Insufficient Data Available
Group II
Croup III Croup IV
The following tentative specifications have been established for Croup II compounds:
2022 Gray 148 2300 White 219 2580 Natural 2814 Black 2820 Natural 2901 Black 2901 Natural 2905 Natural 3086 Clear 22 3118 LOG WE 534 LOG
50.8 3.3 87.1 4.6 83.7 3.8 10.5 + 0.9 81.8 1.7 13.2 + 1.3 77,4 + 0.7 84.4 + 1.2 12.1 + 2.7 50.5 0.7 49.8 1.1
0.1 + 0.2 -0.9 + 1.8 -0.4 + 0.3
1.4 0.2 0.8 1.0 1.1 0.1 1.6 0. 8 0.5 0.4 1.3 i- 0.2 0.4 + 0.1 0.0 0.1
1.3 J- 0. 5 8.5 + 3.3 7.6 4- 0. 8 -0.5 0.4 11.5 2.0 -0.6 0.4 12.0 1.4 9.5 1.2 -1.2 0.4 6.2 + 0. 5 6, 6 + 0.2
%
3078 Clear 22 WE 527 LOG
3063 White 222
12.1 + 0.8 48.8 + 1.7
88.7 3.5
1.3 f 0.2 0.2 + 0.3
#
-0.9 0.6
-1.5 5.5
1.3 0.5
0.3 -f- 0.7
New Compounds
T746-D Natural
3135 White 248
3160 Green 107
i
87.3 l.S 90.1 1 0.7 33.2 t 1.9
0.0 0.8 -1.4 0.4 -25.7 i 1.3
9.2 1.4 0.3 0.5 -0.4 0.3
COLORITE 014656
TABLE 1 TENTATIVE COLOR SPECIFICATIONS
(continued)
RAW MATERIALS
The following tentative specifications have been established for raw materials:
Raw Materials
1a b
Mark WS Tribase EXL Tribase Tribasc E Tribase XL Nuostab V-133 DiBasic Lead Stearate Camelwhite Plastiflow LPC
87.6 4.7 87,4 + 2.1 88.4 + 1.8
88.5 0.9 87.9 + 0.7
91.6 0.4 90.5 + 0.9
90.6 0. 6 80.6 + 1.1
-0.9 + 0.4
-1.1 0.7
-1.2 0.7
-0.8 0.3 -1.2 0.5 -1.3 0.3 -1.4 0.2 -1.1 0. 6 -0.5 + 0.2
3.1 + 0. 8 2.3 1.4 3.3 1.3 3.2 + 0.7
2.4 1.4 1.8 + 0,6 2.8 0.9 1.9 0. 6 8.6 0.6
The following tentative specifications have been established for pigments:
10% M.B. Sudan Lrisol RBH Red F225 Monarch 700
15.3 0.5 21.0 0.9 10.2 +0.6
3.8 0.1 32.2 3.3
1.4 0.2
2.7 + 1.3 8.1 + 0.8 -0,7 0.6
COLORITE 014657
Color Coordinates L, a. b Space
100-WHITE
COLORITE 014658
L, a, b SPACE
B. + Ye 1 lowness - Blueness
[
SPECHVIE^S 3160 GREEN 107
STD,
OSS.
DATE
Gardner Laboratory', Inc., Hothead!!, Md. DATA AND GRAPH SHEET FOR GARDNER COLOR-DIFFERENCE METER
JUNE 15, 1973