ASTM B488 PDF

Thank you for visiting the Advanced Plating Technologies Specification Database . Below is a technical summary of specification ASTM B from ASTM for. Our gold plating services comply with different categories of specifications, such as MIL-G, ASTM B, and AMS Gold plating compliant to. Accurate Precision Plating has 50 years experience performing gold plating services under the ASTM B certification & standard. Call today!.

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Other calibration standards for gold are generally certi? Thus, the appearance of test coupons may serve as an indication of an approaching need for the activated carbon treatment. When Guide B is speci? When plated parts are used in mating applications, the maximum thickness shall not exceed the tolerance speci? asm

Deposit purity should be determined on samples at plating conditions aastm of actual production. It is soluble in water and forms carbonic acid that ionizes and is at equilibrium at 0.

The military standard designation of Grade is included for reference. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Test Method B contains four sampling plans, three for use with tests that are nondestructive and one with those that are destructive.

Gold Plating – ASTM B, AMS , MIL-G | Accurate Precision Plating

Copper, zinc, cadmium from racking materials, bus bars, etc. It is customary that allowance for plated coatings be included within the part tolerance. Special racks may involve the use of conforming, auxiliary, bipolar electrodes, or nonconducting shields. Such stress relief shall not reduce the hardness to a value below the speci?

Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.

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The conductivity of the water extract is measured, and the increase in conductivity due to residual salts and other conducting impurities is calculated.

Nonmagnetic Coatings on Magnetic Basis Metals. For Type I Code B and C coatings, metallic hardening agents such as nickel, cobalt or iron combined shall be equal to or less than 0.

Since many gold coatings have a density lower than the theoretical density of gold This standard does not purport to address all of the safety concerns, if any, associated with its use. Examples of commonly speci? Initial scanning should be carried out for all elements in order to detect any unknown or unexpected metallic impurities.

ASTM B Gold Plating & Electroplating Certification | Accurate Precision Plating

NOTE n488 coating thickness requirement of this speci? However, care must be taken to ensure that the thickness of the Type I or Type II gold topcoat is sufficient so as not to compromise wear properties. You can be assured your gold plating project will be completed right the first time and your part delivered to you production-ready. We offer our clients a superior product due to our attention to detail and commitment to quality, supported by the highest level of customer astk.

Some typical ast, of gold coatings are enumerated below, but the list is not complete and is intended for general guidance only. To convert mass of gold per unit area that is present over the measured area to a geometrical thickness, it is necessary to use standards having a density identical to that of the coatings to be measured, or to multiply the reading obtained by factor, f.

NOTE 8—In applications in which forming or? CO2 is a component of air.

ASTM B488 Gold Plating Standard

All other metals excluding potassium and b4888 are considered impurities and shall not be present in amounts greater than 0. A suggested four-point method is detailed in Test Method F It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application.

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Values provided in parentheses are for information only. In a closed polyethylene bottle, the equilibrated water will remain in the range from 0. Oxidation of co-deposited metals can make soldering more difficult.

ASTM B-488

Once it has been established that the co-deposited metallic impurity limitations are being continuously met in production, frequency of determination can be reduced. Call today to see how we can solve your plating challenges. In b48 case of Type I gold, the occluded potassium has been shown to improve durability and is desirable for that reason. All non-gold metals, excluding potassium and sodium, are considered impurities and shall not be present in amounts greater than 0.

If you feel that your comments have not received awtm fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. This standard does not purport to address all of the safety concerns, if any, associated with its use. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.

This is particularly useful in automatic reel-to-reel applications in which dwell times are signi? Test Method B can be used only for coating requirements that have a numerical limit, such as coating thickness. The gold thickness on signi?

Historical Version s – view previous versions of standard. The surface must be chemically clean and continuously conductive, that is, without inclusions or other contaminants. Warning—Do ast store activated carbon in areas in which vapors from solvents and other chemicals may contaminate the carbon.

No separation of the coating from the substrate shall occur. Your comments will receive careful consideration at a meeting of the responsible b48 committee, which you may attend.