|
Specimen
Number |
Room: 69 deg F, 20% hum
Specimen: room conditions |
Room: 69 deg F, 21% hum
Specimen: -15 deg F (avg temp
over test period) |
Rockwell Hardness
R Scale ASTM D785
Procedure A
Tested perpendicular to molding
top: molded, flat
bottom: machined, flat
|
1
|
101 |
120 |
104 |
113 |
105 |
111.5 |
106 |
109 |
2 |
91 |
119 |
98 |
115 |
99 |
116 |
97 |
111.5 |
3 |
99 |
112 |
105 |
114 |
105 |
112.5 |
105 |
109 |
Average HRR Value |
101 |
114 |
Standard Deviation |
4.4 |
3.3 |
|
 |