3 Review(s)

The precious metal and its various compounds are used in different chemical, photography, lithographic, printing, and block making industries and often used to go-down the refuses in the drain which contains some percent of silver. It is found that studio workers, Block makers, photographers, do not know the exhaustion point of negative fixers for maximum print permanancy and if they check the quantity of silver present in the solution by our silver estimator paper they will get a good result. For print fixers- Silver 1gr. per liter is regarded as the limit for maximum print permanency. Discard the fixer if silver touches 1.75gr. per liter. Negative fixers- Silver 7gms per liter is regarded us the limit. In case of two bath fixers and for second bath 1gr. per liter is for max permanency and do not exceed 1.75gr. per liter. Our silver estimator paper will ony be used in solution of normal acidity and not in excess acid. Dip the silver estimator paper in solution quickly remove the excess liquid by shaking, put this paper on a white piece of board or card wait for few second and compare with our colour chart and take the nearest patch. In ordinary electric light (not in the fluorescent light). It has the best performance. In broad day - light colour may not match accurately but match the nearest two colour patch and take the nearest match and you will get a reliable indication.