What is BS 2782-9: Method 940B - Preparation of test specimens of amorphous thermoplastics about? 
BS 2782-9 is a British Standard that is identical to ISO 2557-2.
BS 2782-9 discusses the Method 1108A for sampling and preparation of test specimens of amorphous thermoplastics.
Method 1108A has been prepared under the direction of the Plastics Standards Committee.
Method 1108A is one of a series of methods described in BS 2782-9 for sampling and preparation of specimens of amorphous thermoplastics.
BS 2782-9: Method 940B specifies the procedure for the preparation of test specimens with predominantly monoaxial orientation in the form of rectangular plates, made from rigid amorphous thermoplastic material. The rectangular plates may be used for impact testing by the falling weight method.
Note: Cellular plastic materials and fibre-containing plastic materials are excluded from BS 2782-9: Method 940.
Who is BS 2782-9: Method 940B - Preparation of test specimens of amorphous thermoplastics for? 
BS 2782-9: Method 940B on preparation of test specimens of amorphous thermoplastics is relevant to: 
- Manufacturers of thermoplastic materials
- Plastic industry
- Product designers/product development teams
- Quality control and testing authorities
Why should you use BS 2782-9: Method 940B - Preparation of test specimens of amorphous thermoplastics?
BS 2782-9: Method 940B provides the best industry guidance on sampling and specimen preparation methods for amorphous thermoplastics.
Bars cut from the plate in different directions may serve as test specimens for the determination of the dependence of mechanical strength upon the degree and direction of the predominant orientation in the plate.
BS 2782-9: Method 940B covers guidance on moulding conditions, design and shape of the plate, injection mould and preparation of the test specimen.
As a result, compliance with BS 2782-9: Method 940B can ensure the test specimens used by quality control and testing authorities, can play a positive role in the accuracy of the tests.
