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| CERTIFICATE OF COMPLIANCE |
| The Plastic Valve, Curb Service
and Meter Boxes of ARMORTM
Access Boxes are injection molded, commercially manufactured
products, utilizing a proprietary Plymouth Products compound
known as PLYMOUTH SUPERFLEXON® 1203, per ASTM D2853-70, Class
1212. The material is a rigid combination of polyolefin with
fibrous inorganic component reinforcing, and U.V. stabilizer
additives to assure resistance to material degradation from
Ultra-Violet light. Test bars of this compound, molded
according to ATM Standards, meet the following properties when
tested under specified ASTM laboratory testing methods and
conditions: |
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| PHYSICAL PROPERTIES OF PLYMOUTH
SUPERFLEXON® |
| Properties |
Test
Method
ASTM |
Minimum
Test Values |
| Tensil Strength (2.0" min.) |
D-638-82a |
3400 psi |
| Flexural Modulus |
D-790-81 |
191,000 psi |
| Compressive Strength
(0.05"/min.) |
D-695-80 |
3350 psi |
| Durometer Hardness, Type D |
D-2240-81 |
60 |
| Deflection Temperature @ 66 psi
Stress |
D-648-82 |
230° F |
| Specific Gravity |
D-792-66 (1979) |
1.15 |
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| If testing is attempted other
than as specified under the ASTM prodcedures, such as removal of
a bar or section from a finished product, allowances must be
made for the location of the piece cut out. An additonal heat
history and fill and flow patterns, all of which will affect the
test results on this type of material testing sample. |
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