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BS ISO 12206:1995 Photography. Methods for the evaluation of the effectiveness of chemical conversion of silver images against oxidation

Other Titles Withdrawn Description Printed version of this is available at library. To request, please e-mail to referencepk@usm.my and include a copy of this record in your e-mail. Abstract 1.1 This International Standard describes methods for evaluating the effectiveness of chemical conversion treatments intended to increase the resistance of wet processed silver images to oxidation. The treatment may be applied as part of the original processing, or it may be a post-processing treatment. 1.2 This International Standard applies to silver-gelatin images coated on to supports of either plastic, paper or glass. 1.3 It does not recommend general or specific treatments for silver images. Likewise, treatment temperature, times and replenishment rates are out-side the scope of this International Standard. Factors to be considered in a stabilizing treatment are discussed in annex B. 1.4 This International Standard describes two test methods: the dichromate bleach test and the hydrogen peroxide incubation test[7]. The significance of each is discussed in annex C.

Contributor(s): MAR - Data Entry Person Primary Item Type: British Standard Identifiers: ICS 1.1 This International Standard describes methods for evaluating the effectiveness of chemical conversion treatments intended to increase the resistance of wet processed silver images to oxidation. The treatment may be applied as part of the original processing, or it may be a post-processing treatment. 1.2 This International Standard applies to silver-gelatin images coated on to supports of either plastic, paper or glass. 1.3 It does not recommend general or specific treatments for silver images. Likewise, treatment temperature, times and replenishment rates are out-side the scope of this International Standard. Factors to be considered in a stabilizing treatment are discussed in annex B. 1.4 This International Standard describes two test methods: the dichromate bleach test and the hydrogen peroxide incubation test[7]. The significance of each is discussed in annex C. ISBN 0580241866 Language: English Subject Keywords: Plain bearings; Lubrication; Flanges; Journal bearings; Accuracy; Vertical; Shafts (rotating); Tolerances of position; Horizontal; Designations; Bearings; Axial-thrust bearings; Roughness (surface); Form tolerances; Dimensional tolerances; Grades (quality); Collars (mechanical components) First presented to the public: 8/21/2023 Original Publication Date: 6/15/1995 Previously Published By: British Standards Institution Place Of Publication: London, United Kingdom Citation: Extents: Number of Pages - 12 License Grantor / Date Granted:   / ( View License ) Date Deposited 2023-08-22 09:18:29.218 Submitter: Muhamad Azmil Ramli

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