Overview of the Plate PAC Methods
A Preparation and titer determination of the
titrants
NaOH, HCl, iodine, thiosulfate, EDTA, AgNO3
B Acidic copper baths
Cu, sulfuric acid, chloride
C Alkaline copper baths
Cu, free cyanide, NaOH and carbonate
D Nickel baths
Ni, boric acid, chloride
E Chromium/chromatizing baths
Cr(VI), total chromium and Cr(III), sulfate/sulfuric acid, chloride, fluoride,
Fe
F Zinc baths
Zn, NaOH and carbonate, total cyanide
G Acidic tin baths
Sn(II), total tin and Sn(IV), free sulfuric acid/free fluoroboric acid, chloride
H Alkaline tin baths
Total tin, NaOH and carbonate
I Silver baths
Ag, Cu, carbonate, free cyanide
J Gold baths
Au, Cu, free cyanide
K Palladium baths
Pd, chloride, nitrite
L Brass baths
Cu, Zn, free cyanide, NaOH and carbonate, sulfite, ammonium/ammonia
M Bronze baths
Cu, Sn, free cyanide
N Lead, lead/tin and cadmium baths
Pb, Sn, Cd, free fluoroboric acid, NaOH and carbonate, total cyanide
O Degreasing baths
NaOH/Na2CO3, NaOH/Na3PO4, Na2SiO3/Na3PO4,
Na2SiO3/Na3PO4/NaCN
P Acidic etching or mordant baths
HNO3 or HCl or H2SO4, H3PO4,
HF, H2SO4/HNO3/HCl, H2SO4/H3PO4,
H2SO4/CrO3, H2SO4/H2O2,
HF/HNO3, heavy metals contained in the baths
Q Baths for anodic oxidation of aluminum (anodizing
baths)
H2SO4/Al/oxalic acid/chloride, H2SO4/CrO3/chloride |