具体请参考德国标准:EN 12476 Phosphate conversion coatings of metals. f- h+ |5 R }- d
5 F3 i1 Y D/ f1 j( C- ^ # B- f" d) p4 b% G. R7 B9 U2 k% |EXAMPLE* G; d/ R O) }( p! z2 z2 m
Designation of a zinc phosphate type coating (Znph) applied to ferrous metal (Fe) to give corrosion protection ® at a mass per unit area of 3g/m2 ± 0.9 g/m2 (3) and for which the after-treatments are sealing (T2) and painting (T1)7 \, z% p I" K: ` Phosphate conversion coating EN 12476-Fe/Znph/r/T2/T1 9 F/ v8 ~2 H7 f$ ] {