BS 3189:1991
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Method for specifying phosphate conversion coatings for metals
Hardcopy , PDF
10-15-2000
English
06-28-1991
Committees responsible
National foreword
Method for specifying
1 Scope
2 Normative references
3 Information to be supplied by the purchaser to the
coater
4 Coating classification code
5 Sampling
6 Treatment of basis metals before coating
7 Phosphate conversion coating
8 Heat treatment after coating
9 After treatment
Annexes
A Guidance information
B Recommendations for phosphate conversion coatings
to provide corrosion protection
C Recommendations for phosphate conversion coatings
to ensure good adhesion of paints, varnishes and
related coatings and to improve corrosion
resistance
D Recommendations for phosphate conversion coatings
to facilitate cold forming
E Recommendations for phosphate conversion coatings
to facilitate sliding action
F Guidance on heat treatment of steel
G Appearance of types of phosphate conversion
coatings
H Determination of corrosion resistance
J Identification of phosphate conversion coatings
Tables
1 Summary of principal types of phosphate conversion
coatings
A.1 Characteristics of phosphate conversion coatings
B.1 Recommendations for phosphate conversion coatings
and after-treatment to provide corrosion protection
C.1 Recommendations for phosphate conversion coatings
to ensure good adhesion of painted and related
coatings and to improve corrosion resistance
D.1 Recommended zinc phosphate conversion coating mass
per unit area to facilitate cold forming
E.1 Recommended manganese phosphate conversion coating
mass per unit area to facilitate sliding action
F.1 Hydrogen embrittlement relief after phosphating
G.1 Usual appearance of phosphate conversion coatings
H.1 Minimum permissible exposure time (in hours) before
first corrosion for non-after-treated, phosphated
ferrous components
J.1 Identification of phosphate conversion coating type
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