November 30, 2018

ASTM B322 PDF

10 Nov ASTM B – Designation: B – 99 (Reapproved ) Endorsed by American Electroplaters’ Socie. International Auto and Engineering Works (IAEW), a year-old company based in Mumbai, follows the (The American Society for Testing and Materials) ASTM. ASTM-B Standard Guide for Cleaning Metals Prior to Electroplating – ICS Number Code (Metallic coatings).

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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. Electroplated articles are used in many industries such as the marine, automotive, plumbing fixtures, and appliance industries.

These stages are discussed in three parts:. Part I —Precleaning use of a solvent, emulsion, or alkaline spray to remove the bulk of the soil. Various metals are electroplated for decorative bb322 engineering finishes. Part II —Intermediate alkaline cleaning.

Usually, even with light soils, it is advisable to retain multistage cleaning, thereby increasing the life and efficiency of the cleaning solutions.

This treatment b322 the metal and is usually accomplished in acid baths which also serve to neutralize the residual alkaline film from alkaline cleaning. Often, depending largely on the amount and type of soil on the workpieces as received, one or more of these stages may be eliminated or modified.

Part I —Precleaning use of a solvent, emulsion, or alkaline spray to remove the bulk of the soil. Because most experience and knowledge in cleaning have been obtained by suppliers of proprietary processes and formulations, these sources should be consulted before setting up a cleaning process.

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Standard – Standard Guide for Cleaning Metals Prior to Electroplating ASTM B –

The choice of these procedures must be based on a knowledge of the metals to be cleaned and ast, the soils to be removed. These stages are discussed in three parts: 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.

These stages are discussed in three parts:. Methods of removal of heat-treat or mill scale are not included in these methods, because they are covered in practices referring to specific metals.

Standard Guide for Cleaning Metals Prior to Electroplating

The degree of cleanliness required for metals to be electroplated is greater than for most other finishes. This treatment activates the metal and is usually accomplished in acid baths which also serve to neutralize the residual alkaline film from alkaline cleaning.

The choice of these procedures must be based on a knowledge of the metals to be cleaned and of the soils to be removed. Part III —Final electrocleaning, to remove trace solids and especially adherent impurities. Various metals are electroplated for decorative or engineering finishes. Part IV —Trouble shooting. The degree of cleanliness required for metals to be electroplated is greater than for most other finishes. Alkaline chelated derusting and cleaning solutions, alone or with sodium cyanide, used as a soak or electrocleaner, are often preferred before electroplating on ferrous alloys.

Alkaline chelated derusting and cleaning solutions, alone or with sodium cyanide, used as a soak or electrocleaner, are often preferred before electroplating on ferrous alloys. Part III —Final electrocleaning, to remove trace solids and especially adherent impurities. It should also be understood that while these procedures are broadly applicable, particular substrates may require certain specific cleaning procedures.

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Electroplated articles are used in many industries such as the marine, automotive, plumbing fixtures, and appliance industries. Usually, even with light soils, it is advisable to retain multistage cleaning, thereby increasing the life and efficiency of the cleaning solutions.

Often, depending largely on the amount and type of soil on the workpieces as received, one or more of these stages may be eliminated or modified. The common electroplates applied are usually copper, nickel, and chromium for decorative and functional uses. For more specific safety precautionary statements see Sections 11 and The common electroplates applied are usually copper, nickel, and astn for decorative and functional uses.

It should also be understood that while these procedures are broadly applicable, particular substrates may require certain specific cleaning procedures.

Because most experience and knowledge in cleaning have been obtained by suppliers of proprietary processes and formulations, these sources should be consulted before setting up a cleaning process.

Part II —Intermediate alkaline cleaning. Link to Active This link will always route to the current Active version of the standard.

These stages are discussed in three parts: Historical Version s – view previous versions of standard. ICS Number Code Methods of removal of heat-treat or mill scale are not included in these methods, because they are covered in practices referring to specific metals. Part IV —Trouble shooting. For more specific safety precautionary statements see Sections 11 and