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Ted Mooney, P.E. RET
Pine Beach, NJ

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Cadmium plating specification query

Q. We produce a number of aerospace products which require Cadmium Plating in accordance with 'DTD 904' On investigating the MOD website www.dstan.mod.uk, this particular specification has been omitted from their listing. Can anyone advise whether this spec. has been superseded and if so, by what spec. and where this can be confirmed?

Derek Mansfield
BAS Components Ltd. - Sevenoaks, Kent, United Kingdom
2002

A. All DTD specifications have been cancelled; the majority have been superceded by either ISO specifications or DEF STANs. DTD 904 is superceded by DEF STAN 03-19 and is available for download from the DEF STAN home page. Passivation of cadmium and zinc is covered by DEF STAN 03-33 (superceding DEF-130).

Brian Terry
Westland Helicopters Ltd - Yeovil, Somerset, England
2002

A. DEF STAN 03-33 has now been withdrawn and is superseded by BS 6338.

Bob Bebbington
Portsmouth Aviation Ltd. - Portsmouth England
March 28, 2018

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