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<p><b>1.1 </b>This International Standard specifies test methods for the determination of residual thiosulfate and other</p>
<p>related chemicals in processed photographic materials.</p>
<p><b>1.2 </b>This International Standard applies to silver halide/gelatin products that have been processed with a final</p>
<p>thiosulfate fixing bath and a water wash. This International Standard does not apply to stabilised black-and-white</p>
<p>products, thermally processed films, or instant-type products. The procedures given in this International Standard</p>
<p>measure residual thiosulfate, and the silver densitometric method measures residual related polythionate materials</p>
<p>as well. Measurements carried out by the procedures in this International Standard may, within the limitations stated</p>
<p>in annexes A and B, correlate with the image stabilities of processed photographs.</p>
<p><b>1.3 </b>Film or plates with photographic-sensitive layers on both sides, or with a photographic sensitive layer on one</p>
<p>side and a gelatin backing layer on the reverse side, may contain approximately twice as much thiosulfate after</p>
<p>processing as samples having a coating on one side only. This situation will be true for materials for which residual</p>
<p>thiosulfate is determined by the iodine-amylose or methylene blue procedures.</p>
<p>NOTE For the method of reporting such results, see figure 1, example 2.</p>
<p><b>1.4 </b>The iodine-amylose can be used with fibre-based paper, resin-coated paper, films and plates. It is the method</p>
<p>to be used with films and papers containing incorporated developing agents.</p>
<p><b>1.5 </b>The methylene blue method can be used with fibre-based paper, resin-coated paper, films and plates but not</p>
<p>with films and paper containing incorporated developing agents.</p>
<p><b>1.6 </b>The silver sulfide densitometric method measures thiosulfates, polythionates and all other residual chemicals</p>
<p>in a processed product that react with silver ion to form a silver "stain" under the conditions of the test.</p>
<p><b>1.7 </b>A tabulated summary of methods, scope, etc. is given in annex B.</p>
Reģistrācijas numurs (WIID)
28235
Darbības sfēra
<p><b>1.1 </b>This International Standard specifies test methods for the determination of residual thiosulfate and other</p>
<p>related chemicals in processed photographic materials.</p>
<p><b>1.2 </b>This International Standard applies to silver halide/gelatin products that have been processed with a final</p>
<p>thiosulfate fixing bath and a water wash. This International Standard does not apply to stabilised black-and-white</p>
<p>products, thermally processed films, or instant-type products. The procedures given in this International Standard</p>
<p>measure residual thiosulfate, and the silver densitometric method measures residual related polythionate materials</p>
<p>as well. Measurements carried out by the procedures in this International Standard may, within the limitations stated</p>
<p>in annexes A and B, correlate with the image stabilities of processed photographs.</p>
<p><b>1.3 </b>Film or plates with photographic-sensitive layers on both sides, or with a photographic sensitive layer on one</p>
<p>side and a gelatin backing layer on the reverse side, may contain approximately twice as much thiosulfate after</p>
<p>processing as samples having a coating on one side only. This situation will be true for materials for which residual</p>
<p>thiosulfate is determined by the iodine-amylose or methylene blue procedures.</p>
<p>NOTE For the method of reporting such results, see figure 1, example 2.</p>
<p><b>1.4 </b>The iodine-amylose can be used with fibre-based paper, resin-coated paper, films and plates. It is the method</p>
<p>to be used with films and papers containing incorporated developing agents.</p>
<p><b>1.5 </b>The methylene blue method can be used with fibre-based paper, resin-coated paper, films and plates but not</p>
<p>with films and paper containing incorporated developing agents.</p>
<p><b>1.6 </b>The silver sulfide densitometric method measures thiosulfates, polythionates and all other residual chemicals</p>
<p>in a processed product that react with silver ion to form a silver "stain" under the conditions of the test.</p>
<p><b>1.7 </b>A tabulated summary of methods, scope, etc. is given in annex B.</p>
