Calculation method to solution concentration In the PCB manufacturing

In PCB manufacturing technology, all kinds of solution play a key role on the final PCB product quality .Whether buying or accessory must be with scientific calculation.Based on the characteristics of PCB production, we provide six kind of calculation method for the colleague to choose:

1.Volume percentage concentration calculation:
Defined: 
volume ratio between Solute (or concentrated solution) and the solvent.
1:5 is sulfuric acid compound with one volume Concentrated sulfuric acid and water .

2.G l concentration calculation:
Defined: Grams of solute in the liter solution.
E.g.：100 grams of copper sulfate was dissolved into 10 liter water. How much is a liter of concentration？
100/10=10 G/L

3.The weight percentage concentration calculation
Defined: showed by the solute weight percentage of the total solution
E.g.：What’s the percentage , 3 grams of sodium carbonate was dissolved into 100 g water ?

4.The molar concentration calculation
Defined: showed by mole fraction of 1 molar enthalpy in 1 liter solution.
Symbol: M, n solute the mole fraction, V is the volume of a solution

5.Equivalent concentration calculation
Defined: A litre of solution contained in the number of gram equivalent of the solute. 
Symbol: N (gram equivalent/l).

6.The proportion of computing
Defined: All objects per unit volume weight (unit: g/cm 3).
Method: the hydrometer
Baume degree and the proportion of conversion methods:
Baume degree = 144.3 (144.3 / share); B = 144.3 / (144.3 - baume degree)