Table 3-1. Specified Values of Physical Properties for Each Lot

Table 3-1

Specified Values of Physical Properties for Each Lot

(To be certified by the manufacturer of material)

Test

Minimum Values

Procedures

ASTM

Physical Property

Engineering Units

Metric Units

D256*

Izod matched impact strength

> / = 0.25 ft-lb/ > / = 13.3 J/m

in.-min.

D542*

Refractive Index

1.49 +/- 0.01

1.49 +/- 0.01>

D570*

Water absorption, 24 hr.

< / = 0.25%

D621

Compressive deformation,

< / = 0.85%

4000 psi, 122 F

D638*

Tensile

(a) Ultimate strength

> / = 9000 psi

> / = 62 MPa

(b) Elongation at break

> / = 2%

(c) Modulus

> / = 400,000 psi > / = 2760 MPa

D695*

Compressive, yield strength

> / = 15,000 psi > / = 103 MPa

Modulus

> / = 400,000 psi > / = 2760 MPa

D732*

Shear, ultimate strength

> / = 8,000 psi

> / = 55 MPa

D785*

Rockwell hardness

> / = M scale 90 > / = M scale 90

D790*

Flexural, ultimate strength

> / = 14,000 psi > / = 97 MPa

D792*

Specific gravity

1.19 +/- 0.01

E308

Ultraviolet (290-330 nm)

light transmittance

< / = 5%

D702

Clarity, visually rated

Must have readibility

D696

Coefficient of linear

thermal expansion at

10 -5 in./in. 10 -3 mm/mm

deg. F

deg. C

+60

4.0

1.83

+80

4.3

1.96

+100

4.7

2.15

D648

Deflection temperature of

> / = 200 deg. F > / = 93 deg. C

plastics under flexure

Method B.5Residual monomer:

(a) methyl methacrylate

< / = 1.5%

(b) ethyl acrylate

< / = 0.01%

Note 1. Tests marked with an (*) require testing of a minimum of two specimens.

For others, test a minimum of one specimen. Where applicable use the

sampling procedures described in B.4. For other tests use the sampling