Scan of Perma Wash label

Discussion in 'B&W: Film, Paper, Chemistry' started by Todd Barlow, Nov 13, 2011.

  1. Todd Barlow

    Todd Barlow Subscriber

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    Attached is a scan of the Perma Wash label. I have not been able to find this on the internet so I thought it may be helpful to others as well.
    Best regards

    Todd
     

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  2. Ian C

    Ian C Member

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    The Permawash instructions to mix 3 oz. of Permawash into 1 gallon (128 oz) of water works out to 3 parts concentrate + 128 parts water = 131 parts of working strength Permawash bath.

    So for any volume V of working strength Permawash bath wanted we need only measure (3/131)*V of concentrate and add (128/131)*V of water.

    Example: We want 500ml of Permawash bath.

    Measure (3/131)*500ml = 11.5ml of concentrate and add (128/131)*500ml = 488.5ml of water to make 500ml of Permawash bath.