the test values will be used to meet the requirements of the minimum
physical properties of Table A-1.
3. MPa is the Metric Unit of pressure Megapascal, equal to 145 psi.
Based on Table A-1 of ANSI/ASME PVHO-1 (1).
Table 3-2
Specified Values of Physical Properties for Each Casting
(To be verified by the testing of specimen from each casting or lot as defined in
Chapter B.2 of reference 1).
Test
Minimum Values
Procedures
ASTM
Physical Property
Engineering Units
Metric Units
D638*
Tensile ultimate strength
> / = 62 MPa
> / = 9,000 psi
elongation at break
> / = 2%
> / = 2%
modulus of elasticity
> / = 2760 MPa
> / = 400,000 psi
D695*
Compressive yield strength
> / = 103 MPa
> / = 15,000 psi
modulus of elasticity
> / = 2760 MPa
> / = 400,000 psi
D621*
Compressive deformation at 4000
psi and 122 deg. F
> / = 1%
> / = 1%
E308
Ultraviolet transmittance (for
0.5 inch thickness
> / = 5%
> / = 5%
D702
Visual Clarity
Must pass
Must pass
Readibility test
Readibility test
Method B.5Residual methyl methacrylate
< / = 1.5%
< / = 1.5%
monomer
Method B.5Residual ethyl acrylate monomer< / = 0.01 percent < / = 0.01 percent
Note 1. Tests marked with an (*) require testing of a minimum of two specimens.
For others, test a minimum of one specimen.
2. Where two specimens are required in the test procedure, the average of
the test values will be used to meet the requirements of the minimum
physical properties shown in this table based on table A-2 of ANSI/ASME
PVHO-1 (1).
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