IS 14443 : 1997 Polycarbonate sheets

1 Scope

  1.1 This standard covers the requirements, methods ofsampling and tests for polycarbonate sheets of solid section aswell as multi-wall variety and also thinner gauge sheets (films),multi-layer composite laminates of polycarbonate compact sheets andcomposites of polycarbonate compact sheets and glass sheets. Sheetscontaining glass fibre or any other reinforcement are, however, notcovered by this standard.

1.2 This standard establishes a system for designating variouspossible polycarbonate sheets and films. Since the system is notbased on application, end use condition and performancerequirement, it cannot be used for selection of any sheet or filmfor specific end use. For selection of material for specific use,experts well versed with the application, design and performancecriterion as well as polycarbonate sheets and films should beconsulted. Similarly the code of good fabrication practices coveredin this standard is intended to act as a guide. For specific enduse and type of sheet or film, expert opinion should be sought forfabrication details.

1.3 The classification system for various types of polycarbonatesheets and films is based on important properties like:

- Weight per sq. metre,

- Dart drop impact strength,

- Light transmission, and

- Surface texture, surface coating, colour, profile and somespecific performance requirements.

2 References

IS 4905 : 1968Methods for random sampling

IS 14434 : 1997Polycarbonate moulding and extrusion materials -Specification