According to JIS, the electroplating and electroless plating specifications must be indicated in the following classifications and orders:

(1)Note 2) Symbol for plating method

EP: Electroplating, ELP: Electroless plating

(2)Note 3) Hyphen

(3)Symbol for substrate material

Fe: Steel, Cu: Copper and Copper Alloy, Zn: Zinc Alloy, AL: Aluminum and Aluminum Alloy, Mg: Magnesium Alloy, PL: Plastics, CE: Ceramics

(4)Note 4) Slash

(5)Symbol for plating material

Ni: Nickel, Cr: Chrome, Cu: Copper, Zn: Zinc, Au: Gold, Ag: Silver, Sn: Tin, Crr: Regular Chrome, ICr: Industrial Chrome

(6)Symbol for plating thickness

The unit is um (micrometer). e.g. 0.1, 5, 10, 20, 40

(7)Symbol for plating type

b: Bright plating, s: Semi-bright plating, d: Duplex plating, t: Three-layer plating, v: Fine matte plating, n: Non-smooth plating, m: Dull plating, cp: Composite plating, bk: Black plating, r: Regular plating, mp: Microporous plating, mc: Microcracked plating, cf: Crack-free plating

(8)Symbol for post-treatment

CM1: Bright chromate, CM2: Colored chromate, HB: hydrogen-removal baking, DH: Diffusion treatment, PA: Painting, CL: Coloring, AT: Anti-tarnish treatment

(9)Note 6) Colon

(10)Symbol for operating environment

A:Highly corrosive outdoor environment (e.g. coastal areas and industrial zones)
B:Normal outdoor environment (e.g. rural zones and residential areas)
C:Highly humid indoor environment (e.g. bathrooms and kitchens)
D:Normal indoor environment (e.g. inside of houses and offices)