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Retouching, Dyes & Sundries

Residual Hypo Tester 50ml

Powder to make: 
For: Black and White
Shipping: Worldwide Shipping Possible
The residual Hypo Tester is used to test the washing process of prints.

For example, you would run a test page through the washing process, and drop a bit of the hypo on the print. If it liquid turns yellow, the process/print is not clear of Fixer and you qould re-wash the actual prints.

The residual Hypo Test is a simple chemical test that can be used to determine if a print or film strip has been adequately washed. The test is based upon the formation of a yellow stain of sylver sulfide-silver thiosulfate on the white of atest print, or the clear area of a negativefilm stripwhen the test solution is applied.

The reliability of the test depends upon the washing procedure.

Shake well prior to each use.

Description Code Price Quantity
Residual Hypo Tester 50ml Residual Hypo Tester 50ml
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