一、Product description：LT - 603 is used on the surface adjustments before it‘s activated, is also used to ensure the concentration stability of LT-604.

二、Operation condition：

             LT - 603 200 grams / liter

             CP-5% hydrochloric acid

             The temperature     room temperature

             Time 1-2 minutes

             Filtering  Regular use 5-10 µ mp. P cotton filter core

             Not boost

三、  Confect method：

              LT - 603 200 grams / liter

            CP-5% hydrochloric acid

              DI water allowance

四、 Tank liquor maintan:

            1、  To maintain the proportion of 16-19Be °, each adding bacterial / L LT - 603 can improve 1Be °;

            2、  Dealing with 100m2 per board area required addition of LT - 603 3 kg;

            3、  Maintaining pH 0.5-0.7N, each adding 9ml / L can improve HCL acidity 0.1N;

            4、  copper content> 1.0 g / liter (Bath dark green) per liter or working fluid handling 20m2 plate replacement fluid;

五、Analysis method：

   1．  Acidity analysis：

             a、  Inject 1ml to 250ml bottle Cone, add 50ml deionized water, coupled with 2-3 drops phenolphthalein indicator;

             b、   Titrate with 0.1N sodium hydroxide to end at the pink, the number of titration is V;

             c、  Calculation: acidity (equivalent / L) = 0.1 × V

             d、  Control range: acidity 0.5-0.7N

                  The proportion  16-19Be °