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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Often, depending largely asttm the amount and type of soil on the workpieces as received, one or more of these stages may be eliminated or modified. The choice of these procedures must be based on a knowledge of the metals to be cleaned and of the soils to be removed. Various metals are electroplated for decorative or engineering finishes.

Norma ASTM B()

Part I —Precleaning use of a solvent, emulsion, or alkaline spray to remove the bulk of the soil. Usually, even with light soils, it is advisable to retain multistage cleaning, thereby increasing the life and efficiency of the cleaning solutions.

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

ICS Number Code The common electroplates applied are usually copper, nickel, and chromium for decorative and functional uses. The common electroplates applied are usually copper, nickel, and chromium for decorative and functional uses.

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.

Because most experience and knowledge in cleaning have been obtained by suppliers b32 proprietary processes and formulations, these sources should be consulted before setting up a cleaning process. This treatment activates the metal and is usually accomplished in acid baths which also serve to neutralize the residual alkaline film from alkaline cleaning.

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. The choice of these procedures must be based on a knowledge of the metals to be cleaned and of the soils to be removed. The degree of cleanliness required for metals to be electroplated is ast than for most other finishes.

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.

ASTM-B | Standard Guide for Cleaning Metals Prior to Electroplating | Document Center, Inc.

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.

For more specific safety precautionary statements see Sections 11 and 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 IV —Trouble shooting. 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.

ASTM B322 – 99(2014)

These stages are discussed in three parts:. Usually, even with light soils, it is advisable to retain multistage cleaning, thereby increasing the life and efficiency of the cleaning solutions. Part II —Intermediate alkaline cleaning. For more specific safety precautionary statements see Sections 11 and It should also be understood that while these procedures are broadly applicable, particular substrates may require certain specific cleaning procedures.

Part I —Precleaning use of a solvent, emulsion, or alkaline spray atsm remove the bulk of the soil. This treatment activates the metal and is usually accomplished in acid baths which also ast to neutralize the residual alkaline film from alkaline cleaning. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations atsm to use.

Part III wstm electrocleaning, to remove trace solids and especially adherent impurities. Historical Version s – view previous versions of standard.

These stages are discussed in three parts: