MIL-DTL-45204D
INTERNATIONAL STANDARDIZATION AGREEMENTS
ISO 17025
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General requirements for the competence of testing and calibration
laboratories (DoD Adopted)
(Copies of this document are available from https://www.iso.ch or from the International
Organization for Standardization American National Standards Institute 11 West 42nd Street,
13th Floor New York, New York, United States, 10036.)
2.4 Order of precedence. In the event of a conflict between the text of this document and the
references cited herein, the text of this document takes precedence. Nothing in this document,
however, supersedes applicable laws and regulations unless a specific exemption has been
obtained.
3. REQUIREMENTS
3.1 Plating materials and processes. The materials and processes used shall produce coatings
that meet the requirements of this specification. Either bright or matte deposits are acceptable
unless otherwise specified in the contract or purchase order (see 6.2).
3.2 Basis metal. The basis metal shall be free from defects, scratches, pits, non-conducting
inclusions, and roll and die-marks that will adversely affect the appearance and the performance
of coatings applied thereto despite the observance of the best plating practice.
3.2.1 Preplating operations. Unless otherwise specified in the contract or purchase order (see
6.2), plating shall be applied after all basis metal heat treatments and mechanical operations such
as machining, brazing, welding, forming, and impregnating have been completed. This
requirement does not prohibit certain required operations after plating to take place, such as,
embrittlement relief, heat treatment and forming operations such as crimping electrical
connections.
3.2.1.1 Plating of steel parts. Unless otherwise specified in the contract or purchase order (see
6.2), steel parts having an ultimate tensile strength of 220,000 psi or above shall not be plated
without specific approval from the procuring activity.
3.2.2 Stress relief treatment. All steel parts shall be given a stress relief heat treatment at a range
of 375° ± 25° F (191° ± 14° C) for 3 hours or more prior to cleaning and plating if they contain
tensile stresses caused by machining, grinding, or cold forming operations. Parts which are cold
straightened are considered to contain damaging stresses. The temperature and time at
temperature shall be such that maximum stress relief is obtained without reducing the hardness
below the specified minimum (see 6.2.1).
3.3 Pretreatment. Articles shall be cleaned, pickled, or otherwise pretreated as necessary. Acid
pickling on high strength steels shall be prohibited.
3.4 Strikes. When gold plating is preceded by a strike or a strike and underplate, it shall be as
specified in the contract or purchase order (see 6.2 and 6.3). For exterior use and when the basis
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