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Norma ASTM B634-14a(2021) 1.10.2021 náhled

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ASTM B634-14a(2021)

Standard Specification for Electrodeposited Coatings of Rhodium for Engineering Use (Includes all amendments and changes 10/27/2021).

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NORMA vydána dne 1.10.2021

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Provedení	PDF - okamžité stažení - 1 679.30 Kč Tištěné - 1 679.30 Kč
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1 679.30 Kč

Informace o normě:

Označení normy: ASTM B634-14a(2021)
Datum vydání normy: 1.10.2021
Kód zboží: NS-1040627
Počet stran: 5
Přibližná hmotnost: 15 g (0.03 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM

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Anotace textu normy ASTM B634-14a(2021) :

This specification covers the requirements for electrodeposited rhodium coatings for engineering applications, usually employed for their corrosion resistance, stable electrical contact resistance, wear resistance, reflectivity, and heat resistance. Coating shall be classified based on their thickness. Specimens shall undergo preparatory preplating procedures such as surface cleaning and stress relief treatment, as well as post-plating embrittlement relief process. Coatings shall be sampled, tested, and conform accordingly to specified requirements as to purity, appearance, adhesion, hydrogen embrittlement, reflectivity, and thickness (to be measured either nondestructively by beta backscatter method or X-ray fluorescence, or destructively by microscopical cross sectioning method).

Keywords:

connectors, contacts, electrical connectors, electrical contacts, engineering coatings, reflectors, relays, relay switches, rhodium, rhodium coatings, rhodium electrodeposits, rhodium platings,, ICS Number Code 25.220.40 (Metallic coatings)

Doplňující informace

1. Scope

1.1?This specification covers requirements for electrodeposited coatings of rhodium used for engineering purposes.

1.2?Coatings of rhodium covered by this specification are usually employed for their corrosion resistance, stable electrical contact resistance, wear resistance, reflectivity, and heat resistance.

1.3?Appendix X1 covers some typical applications for electrodeposited rhodium.

1.4?The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.5?This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.6?This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

2. Referenced Documents

B456-17(2022)	Standard Specification for Electrodeposited Coatings of Copper Plus Nickel Plus Chromium and Nickel Plus Chromium
QQ-N-290	Nickel Plating, Electrodeposited
B567-98(2021)	Standard Test Method for Measurement of Coating Thickness by the Beta Backscatter Method
B507-14(2021)	Standard Practice for Design of Articles to Be Electroplated on Racks
B487-20	Standard Test Method for Measurement of Metal and Oxide Coating Thickness by Microscopical Examination of Cross Section
B482-85(2019)	Standard Practice for Preparation of Tungsten and Tungsten Alloys for Electroplating
B481-68(2019)	Standard Practice for Preparation of Titanium and Titanium Alloys for Electroplating
B242-99(2020)	Standard Guide for Preparation of High-Carbon Steel for Electroplating
B183-18(2022)	Standard Practice for Preparation of Low-Carbon Steel for Electroplating
B322-99(2020)e1	Standard Guide for Cleaning Metals Prior to Electroplating (Includes all amendments and changes 12/7/2020).
B281-88(2019)e1	Standard Practice for Preparation of Copper and Copper-Base Alloys for Electroplating and Conversion Coatings (Includes all amendments and changes 5/14/2019).
B254-92(2020)e1	Standard Practice for Preparation of and Electroplating on Stainless Steel (Includes all amendments and changes 12/7/2020).
B252-92(2020)	Standard Guide for Preparation of Zinc Alloy Die Castings for Electroplating and Conversion Coatings
B568-98(2021)	Standard Test Method for Measurement of Coating Thickness by X-Ray Spectrometry
E8-04	Standard Test Methods for Tension Testing of Metallic Materials
B762-21	Standard Guide of Variables Sampling of Metallic and Inorganic Coatings
B697-88(2021)	Standard Guide for Selection of Sampling Plans for Inspection of Electrodeposited Metallic and Inorganic Coatings
B602-21	Standard Guide for Attribute Sampling of Metallic and Inorganic Coatings
B571-23	Standard Practice for Qualitative Adhesion Testing of Metallic Coatings
MIL-R-46085	Rhodium Plating, Electrodeposited Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700 Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
B343-92a(2020)	Standard Practice for Preparation of Nickel for Electroplating with Nickel (Includes all amendments and changes 12/4/2020).

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