1 Scope
2 Normative references
3 Definitions
4 Material
5 Classes of optical quality
6 Physical characteristics
7 Appearance
8 Optical characteristics
9 Resistance to weathering
10 Thermal characteristics
11 Mechanical characteristics
12 Susceptibility to solvent crazing
13 Resistance to crack propagation
14 Thermal relaxation - degree to stretch
15 Dimensions and tolerances
16 Quality assurance
17 Protection
18 Marking
19 Packing
20 Storage
21 Designation