Colour and diffusion filter material for theatre, television and similar entertainment purposes.-Specification for flammability and dimensional stability
剧院、电视和类似娱乐用途的彩色和扩散过滤材料
Specifies flammability and dimensional stability characteristics of sheer filter material, normally of flexible plastics or similar material, used to colour, attenuate or diffuse sources of illumination for theatre, television film or other entertainment and similar applications.Cross References:BS 2782:Part 1:Method 140DBS 2782 :Part 1:Method 140E