25.220.40 标准查询与下载



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1.1 This standard details a laboratory method to accelerate the effects of exposure to hygroscopic corrosive chloride compounds on electroplated chromium components. It is applicable to any substrate and coating system that utilizes electroplated chromium as the final metallic coating. 1.2 Field experience has shown that hygroscopic chlorides are significantly more aggressive than sodium chloride toward chromium electroplated deposits. The most common of which is calcium chloride. 1.3 The standard does not specify exposure periods to be used for a specific product nor the interpretation to be given to the results. The suitability of this test and correlation of results with service experience should be determined before it is specified for coating systems. 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.

Standard Test Method for Chloride Resistance Test for Chromium Electroplated Parts (Russian Mud Test)

ICS
25.220.40
CCS
发布
2021-10-01
实施

1.1 This guide gives sampling plans that are intended for use in the inspection of metallic and inorganic coatings for conformance to ASTM standard specifications. 1.2 The plans in this guide, except as noted, have been selected from some of the single sampling plans of MIL-STD105D. The specific plans selected are identified in Tables 1-3 of this guide. The plan of Table 4, which is used for destructive testing, is not from the Military Standard. This standard does not contain the Military Standard’s requirement for tightened inspection when the quality history of a supplier is unsatisfactory. 1.3 The plans are based on inspection by attributes, that is, an article of product is inspected and is classified as either conforming to a requirement placed on it, or as nonconforming. Sampling plans based on inspection by variables are given in Guide B762. Variables plans are applicable when a test yields a numerical value for a characteristic, when the specification imposes a numerical limit on the characteristic, and when certain statistical criteria are met. These are explained in Guide B762. 1.4 The plans in this guide are intended to be generally suitable. There may be instances in which tighter or looser plans or ones that are more discriminating are desired. Additional plans that may serve these needs are given in Guide B697. Also, Guide B697 describes the nature of attribute sampling plans and the several factors that must be considered in the selection of a sampling plan. More information and an even greater selection of plans are given in MIL-STD-105D, MIL-STD-414, ANSI/ASQC Z1.9-1979, Refs (1-7)2 , and in Guide B697. 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.

Standard Guide for Attribute Sampling of Metallic and Inorganic Coatings

ICS
25.220.40
CCS
发布
2021-10-01
实施

1.1 This specification describes the requirements for coatings of autocatalytic nickel boron deposited from aqueous solutions onto substrates for engineering (functional) use. The specification classifies these coatings into two types: 1.1.1 Type 1 Coatings have a boron content of 0.1 to less than 3.5 mass percent with the balance nickel. 1.1.2 Type 2 Coatings have a boron content of 3.5 to 6 mass percent and a minimum of 90 mass percent nickel. 1.2 Nickel boron coatings are produced by autocatalytic (electroless) deposition from aqueous solutions. These solutions contain either an alkylamineborane or sodium borohydride as a reducing agent, a source of nickel ions, a buffer, complexant, and control chemicals. 1.3 The coatings are hard and uniform in thickness, even on irregular shaped parts, and used in a wide range of applications. 1.4 Process solutions formulated with an alkylamineborane usually produce coatings that contain 0.1 to 3.5 % boron. Thin coatings of this type provide bondability and solderability on electronic components such as lead frames, electrical contacts, and headers. To maintain solderability, these coatings are generally not heat treated. 1.5 Process solutions formulated with sodium borohydride are strongly alkaline and are frequently used to plate steel and titanium parts to impart surface hardness and wear resistance properties. Deposits produced from these processes can contain 3 to 5 % boron and thallium or other metals which are used to stabilize the plating solution and modify the coating properties. 1.6 The physical and mechanical properties of these deposits such as density, hardness, stress, and melting point will vary with the boron content. The variation of boron content also affects the quantity and structure of nickel boride precipitated during heat treatment. In the as-plated condition, the deposit consists of a predominantly amorphous mixture of nickel and boron with a hardness of about 700 HKN. When the deposit is heated above 300 °C, the nickel crystallizes, forming nickel clusters of Ni (111) and boron precipitates as nickel boride, Ni3B (211) and (311), increasing the hardness to greater than 1000 HK100 for Type 2 coatings. 1.7 The nickel boron coatings are microporous and offer limited corrosion protection. Their columnar structure, however, is beneficial in reducing wear because it provides a means of trapping lubricants within the surface of the coated part. 1.8 This document describes only autocatalytic nickel boron coatings that have been produced without use of external electric sources. 1.9 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.10 The following hazards caveat pertains only to the Test Methods section of this specification: This standard does not purport to address the safety problems 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. 1.11 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 Nickel Boron Coatings for Engineering Use

ICS
25.220.40
CCS
发布
2021-10-01
实施

1.1 These test methods describe procedures for assessing the adhesion of metallic and inorganic coatings and other thin films to metallic and nonmetallic substrates. Assessment is made by applying pressure-sensitive tape to a coated surface and then utilizing a mechanical device to remove the tape at a regulated, uniform rate and constant angle while simultaneously recording the removal force. 1.2 Four methods are described. Methods A1 and A2 are intended primarily for use on parts. Methods B1 and B2 are intended primarily for use in laboratory evaluations. Methods B1 and B2 are not recommended for testing coatings and films on polymer substrates. 1.3 These test methods may be used to establish whether the adhesion of a coating to a substrate is within a required range (between a quantified low and a quantified high level). Determination of actual adhesive forces requires more sophisticated methods of measurement. In multilayer systems adhesion failure may occur between intermediate coating layers so that the adhesion of the total coating system to the substrate may not necessarily be determined. 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.

Standard Test Methods for Assessing the Adhesion of Metallic and Inorganic Coatings by the Mechanized Tape Test

ICS
25.220.40
CCS
发布
2021-10-01
实施

1.1 This guide provides sampling plans that are intended for use in the inspection of metallic and inorganic coatings on products for the purpose of deciding whether submitted lots of coated products comply with the specifications applicable to the coating. 1.2 The sampling plans are variables plans. In plans of this type, several articles of product are drawn from a production lot. A characteristic of the coating on the drawn articles is measured. The values obtained are used to estimate the number of articles in the lot that do not conform to a numerical limit, for example a minimum thickness. The number is compared to a maximum allowable. 1.3 Variables plans can only be used when the characteristic of interest is measurable, the test method gives a numerical measure of the characteristic, and the specification places a numerical limit on the measured value. It is also necessary that the variation of the characteristic from article to article in a production lot be normally distributed (see Appendix X2). Each article must be tested in the same way (for example, coating thickness must be measured at the same location, see X2.7) so that the values from article to article are comparable. If one or more of these conditions are not met, a variables plan cannot be used. Instead, an attributes plan must be used. These are given in Guide B602 and Guide B697. 1.4 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. 1.5 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 Guide of Variables Sampling of Metallic and Inorganic Coatings

ICS
25.220.40
CCS
发布
2021-10-01
实施

1.1 This test method covers the determination of the degree of adhesion (bonding strength) of a coating to a substrate or the cohesion strength of the coating in a tension normal to the surface. The test consists of coating one face of a substrate fixture, bonding this coating to the face of a loading fixture, and subjecting this assembly of coating and fixtures to a tensile load normal to the plane of the coating. It is adapted particularly for testing coatings applied by thermal spray, which is defined to include the combustion flame, plasma arc, two-wire arc, high-velocity oxygen fuel, and detonation processes for spraying feedstock, which may be in the form of, wire, rod, or powder. NOTE 1—Thermal spray coating materials include ceramics, such as metal oxides or carbides, and metals. In some cases, a coating is formed of different spray materials, such as an oxide layer sprayed onto a sprayed metal-bonding layer. The substrate generally is a metal, but may be a ceramic, such as an oxide or graphite. 1.2 Usually this test method is performed at ambient temperature. Higher temperature testing is restricted by the need for a suitable adhesive bonding agent. For certain fundamental investigations, it is suggested that very low (cryogenic) temperature be used. 1.3 This test method is limited to testing thermal spray coatings that can be applied in thickness greater than 0.015 in. (0.38 mm). The limitation is imposed because an adhesive bonding agent is used in the test. Those bonding agents established so far for this method tend to penetrate thermal spray coatings and may invalidate results unless the coatings are thick enough to prevent penetration through the coating. Further development may establish that thin layers of certain types of especially dense coatings may be tested satisfactorily. Alternatively, new adhesive bonding agents that would allow reduction of the minimum thickness limitation may become available. 1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered 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.

Standard Test Method for Adhesion or Cohesion Strength of Thermal Spray Coatings

ICS
25.220.40
CCS
发布
2021-10-01
实施

This document specifies four electrographic tests for assessing the porosity of electrodeposited gold and gold alloy coatings for engineering, and decorative and protective purposes.

Metallic coatings - Test methods for electrodeposited gold and gold alloy coatings - Part 3: Electrographic tests for porosity

ICS
25.220.40
CCS
A29
发布
2021-10-00
实施

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

ICS
25.220.40
CCS
发布
2021-09-24
实施
2021-09-24

Copper and copper alloys - Test methods for assessing protective tin coatings on drawn round copper wire for electrical purposes

ICS
25.220.40
CCS
发布
2021-09-01
实施
2021-09-01

Hot dip galvanized coatings on fabricated iron and steel articles - Specifications and test methods (ISO/DIS 1461:2021)

ICS
25.220.40
CCS
发布
2021-09-00
实施

Jewellery-Gold alloy coatings

ICS
25.220.40
CCS
发布
20210827
实施
20210827

Electroplated coatings of gold and gold alloy for decorative purposes

ICS
25.220.40
CCS
发布
20210827
实施
20210827

Metallic and oxide coatings - Measurement of coating thickness - Microscopical method (ISO 1463:2021)

ICS
25.220.40
CCS
发布
2021-08-16
实施
2021-08-16

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

ICS
25.220.40
CCS
发布
2021-07-15
实施
2021-07-15

ISO 19598:2016 applies to electrodeposited zinc and zinc-alloy coatings on iron and steel with Cr(VI)-free passivation. The zinc-alloy coatings contain nickel or iron as alloying elements (referred to as zinc/nickel and zinc/iron coatings, respectively). The main purpose of the coatings or coating systems is protecting iron and steel components against corrosion. ISO 19598:2016 specifies - the designations to be used for the above coating systems, - the minimum corrosion resistance to be achieved in specified test procedures, and - the minimum coating thicknesses required.

Metallic coatings — Electroplated coatings of zinc and zinc alloys on iron or steel with supplementary Cr(VI)-free treatment

ICS
25.220.40
CCS
发布
2021-07-01
实施

ISO 19477:2016 specifies a method for measuring the in-plane Young's modulus, at room temperature, of thermal barrier coatings formed on substrates by thermal spraying.

Metallic and other inorganic coatings — Measurement of Young's modulus of thermal barrier coatings by beam bending

ICS
25.220.40
CCS
发布
2021-07-01
实施

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

ICS
25.220.40
CCS
发布
2021-07-01
实施
2021-07-01

ISO 19487:2016 specifies the requirements for electrodeposited nickel-ceramics composite coatings applied to ferrous and non-ferrous basis metals for engineering purposes. In addition, it enables both providers and users to offer a consistent methodology to fabricate electrodeposited nickel-ceramics composite system. Nickel alloys or composites in which nickel content is less than 40 vol.% are outside the scope of this document. The designation provides a means of specifying the type of nickel composite coatings appropriate for engineering applications.

Metallic and other inorganic coatings — Electrodeposited nickel-ceramics composite coatings

ICS
25.220.40
CCS
发布
2021-07-01
实施

This document specifies methods for assessing the tin coating on drawn round copper wire for the manufacture of electrical conductors, e. g. according to EN 13602.This European Standard includes test methods for the determination of the following characteristics:a) thickness of t

Copper and copper alloys - Test methods for assessing protective tin coatings on drawn round copper wire for electrical purposes; German version EN 13603:2021

ICS
25.220.40
CCS
发布
2021-07-00
实施

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

ICS
25.220.40
CCS
发布
2021-07-00
实施
2021-07-01



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