Imaging materials. Photographic films and papers. Wedge test for brittleness Ingestion-build-115288 describes methods for determination of

describes methods for determination of the strength and durability of storage furniture

reference to WI 136 has been removed

Poor resistance to thermal shock involves increased vulnerability to rapid temperature changes

If the resin contains additives which can be oxidized by perchloric acid

then the requirements agreed for the order or specified in the appropriate product specification apply

Imaging materials. Photographic films and papers. Wedge test for brittleness Ingestion-build-115288 describes methods for determination of1 Scope This International Standard specifies a method for determining and expressing quantitatively the brittleness of photographic film and papers. It does not, however, specify a universal brittleness test for all types of stress encountered for which special tests can be required to correctly rate the material for brittleness. The method is applicable to films with or without a gelatin backing and to fibre based or resin coated (RC) photographic