25.220.40 标准查询与下载



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This document specifies a method for the measurement of metal coating thickness by first forming a step between the surface of the coating and the surface of its substrate and then measuring the step height using a profile recording instrument. It covers the instrumentation characteristics and the procedure appropriate to this specific application of profilometric methods. The method is applicable to the measurement of thicknesses of metal coatings from 0,01 µm to 1000 µm on flat surfaces and, if appropriate precautions are taken, on cylindrical surfaces. It is highly suitable for the measurement of minute thicknesses but, for thicknesses of less than 0,01 µm, surface flatness and surface smoothness are very critical and, accordingly, the method is not suitable for use down to the lowest level of measurement usual for electronic stylus instruments. The method is suitable for measuring coating thicknesses when preparing coating thickness reference standards.

Metallic coatings — Measurement of coating thickness — Profilometric method

ICS
25.220.40
CCS
发布
2021-04-08
实施

1.1 This test method closely estimates the thickness of individual layers of a multilayer nickel electrodeposit and the potential differences between the individual layers while being anodically stripped at constant current density.2,3 1.2 This test method does not cover deposit systems other than multilayer electroplated nickel deposits. 1.3 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. 1.4 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.

Standard Test Method for Simultaneous Thickness and Electrode Potential Determination of Individual Layers in Multilayer Nickel Deposit (STEP Test)

ICS
25.220.40
CCS
发布
2021-04-01
实施

1.1 This specification covers the requirements for a cadmium coating vacuum-deposited on iron and steel basis metals. The coating is especially beneficial to those ferrous metals, heat treated to 46HRC and higher or having an ultimate tensile strength greater than 1500 MPa, wherein protection against corrosion and appearance are important (see Appendix X1). 1.2 Vacuum-deposited production items are normally free of hydrogen embrittlement, a danger when using electroplating processes for deposition. Vacuum deposition can handle large high-strength parts that cannot be conveniently mechanically plated in the rotating barrels. 1.3 The coating is provided in various thicknesses up to and including 12 µm (3.1) either in the as-deposited condition or with a supplementary finish (3.2). 1.4 The following precautionary caveat pertains only to the test methods portion, Section 9, of this specification: This standard does not purport to address all of the safety problems, 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. 1.5 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.

Standard Specification for Coatings of Cadmium Vacuum-Deposited on Iron and Steel

ICS
25.220.40
CCS
发布
2021-04-01
实施

1.1?This specification covers requirements for powdered refractory metal coatings produced with or without additives. These coatings are applied to ceramic bodies to join ceramic bodies to metals or to other metallized ceramics by means of brazing or soldering. Included in this

Standard Specification for Metallized Surfaces on Ceramic

ICS
25.220.40
CCS
发布
2021-04-01
实施

This document specifies a method for measuring the in-plane Young’s modulus of thermal barrier coatings (TBCs) formed on substrates, from room temperature up to 1000 °C.

Metallic and other inorganic coatings - Measurement of Young's modulus of thermal barrier coatings at elevated temperature by flexural resonance method

ICS
25.220.40
CCS
发布
2021-04-00
实施

Metallic coatings - Measurement of coating thickness - Profilometric method (ISO 4518:2021)

ICS
25.220.40
CCS
发布
2021-04-00
实施

Metallic and other inorganic coatings - Electroplated coatings of cadmium with supplementary treatments on iron or steel

ICS
25.220.40
CCS
发布
2021-03-18
实施
2021-03-18

Metallic coatings -- Hot dip galvanized coatings on ferrous materials -- Gravimetric determination of the mass per unit area (ISO 1460:2020)

ICS
25.220.40
CCS
发布
2021-03-01
实施
2021-03-01

Metallic coatings - Measurement of coating thickness - Scanning electron microscope method (ISO/DIS 9220:2021)

ICS
25.220.40
CCS
发布
2021-03-00
实施

Metallic coatings - Porosity tests - Ferroxyl test

ICS
25.220.40
CCS
发布
2021-02-11
实施
2021-02-11

This document specifies the requirements for the coating mass per unit area, for other properties and also for testing of zinc or zinc-alloy coatings on steel wire and steel wire products of circular or other section.

Steel wire and wire products - Non-ferrous metallic coatings on steel wire - Part 2: Zinc or zinc-alloy coating

ICS
25.220.40
CCS
A29
发布
2021-02-00
实施

Metallic coatings - Hot dip galvanized coatings on ferrous materials - Gravimetric determination of the mass per unit area (ISO 1460:2020)

ICS
25.220.40
CCS
发布
2021-01-00
实施
2021-01-01

1.1 This specification covers requirements for autocatalytic (electroless) nickel-phosphorus coatings applied from aqueous solutions to metallic products for engineering (functional) uses. 1.2 The coatings are alloys of nickel and phosphorus produced by autocatalytic chemical reduction with hypophosphite. Because the deposited nickel alloy is a catalyst for the reaction, the process is self-sustaining. The chemical and physical properties of the deposit vary primarily with its phosphorus content and subsequent heat treatment. The chemical makeup of the plating solution and the use of the solution can affect the porosity and corrosion resistance of the deposit. For more details, see ASTM STP 265 (1)2 and Refs (2), (3), (4), and (5). 1.3 The coatings are generally deposited from acidic solutions operating at elevated temperatures. 1.4 The process produces coatings of uniform thickness on irregularly shaped parts, provided the plating solution circulates freely over their surfaces. 1.5 The coatings have multifunctional properties, such as hardness, heat hardenability, abrasion, wear and corrosion resistance, magnetics, electrical conductivity provide diffusion barrier, and solderability. They are also used for the salvage of worn or mismachined parts. 1.6 The low phosphorus (2 to 4 % P) coatings are microcrystalline and possess high as-plated hardness (620 to 750 HK 100). These coatings are used in applications requiring abrasion and wear resistance. 1.7 Lower phosphorus deposits in the range between 1 % and 3 % phosphorus are also microcrystalline. These coatings are used in electronic applications providing solderability, bondability, increased electrical conductivity, and resistance to strong alkali solutions. 1.8 The medium phosphorous coatings (5 to 9 % P) are most widely used to meet the general purpose requirements of wear and corrosion resistance. 1.9 The high phosphorous (more than 10 % P) coatings have superior salt-spray and acid resistance in a wide range of applications. They are used on beryllium and titanium parts for low stress properties. Coatings with phosphorus contents greater than 11.2 % P are not considered to be ferromagnetic. 1.10 Units—The values stated in SI units are to be regarded as standard. 1.11 The following precautionary statement pertains only to the test method portion, Section 9, of this specification. 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. 1.12 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.

Standard Specification for Autocatalytic (Electroless) Nickel-Phosphorus Coatings on Metal

ICS
25.220.40
CCS
/
发布
2021
实施
0000-00-00

1.1?This specification limits the amounts and types of visual defects that can be tolerated on decoratively electroplated surfaces of plastic products. The quantity of defects permitted shall be specified by the purchaser. 1.2?This international standard was developed in accord

Standard Specification for Appearance of Electroplated Plastic Surfaces

ICS
25.220.40
CCS
A29
发布
2021
实施

Metallic coatings-Review of methods of measurement of ductility

ICS
25.220.40
CCS
发布
20201224
实施
20201224

Electrodeposited nickel coatings on magnetic and non-magnetic substrates-Measurement of coating thickness-Magnetic method

ICS
25.220.40
CCS
发布
20201224
实施
20201224

Metallic and related coatings-Vickers and knoop microhardness tests

ICS
25.220.40
CCS
发布
20201224
实施
20201224

Metallic and other inorganic coatings-Electrochemical measurement of diffusible hydrogen in steels-Barnacle electrode method

ICS
25.220.40
CCS
发布
20201224
实施
20201224

Electroplated coatings of tin-nickel alloy-Specification and test methods

ICS
25.220.40
CCS
发布
20201224
实施
20201224

Electrodeposited metallic coatings and related finishes-Sampling procedures for inspection by attributes

ICS
25.220.40
CCS
发布
20201224
实施
20201224



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