BS 4921:1973
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Specification for sherardized coatings on iron and steel articles
Hardcopy
02-29-1988
English
02-28-1973
Important note : All end users must be registered with an Account prior to user licenses being assigned.Specifies coatings consisting principally of zinc applied to iron and steel articles by the sherardizing process to protect them against corrosion. Deals with the purity of the zinc powder used in the sherardizing process and with the thickness, appearance and adhesion of the coating. Two classes of coating thickness are specified together with the reference method of determining the coating thickness. Gives advice on the condition of the basis metal and the need for post treatments.
| Committee |
STI/33
|
| DocumentType |
Standard
|
| Pages |
0
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
| I.S. 197-2:1985 | ALUMINIUM ALLOY WINDOWS |
| BS 6858:1987 | Specification for manually operated positioning devices and associated anchorage lines for use with industrial safety belts and harnesses |
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