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The degree of cleanness required on a surface depends on the application. Precision inspection shall be performed by solvent-ring test, black light inspection, atomizer test, and ferroxyl test. Methods are described for the detection of free iron and transparent chemical and oily deposits. Meaningful tests to establish the degree of cleanness of a surface are few, and those are often difficult to administer and to evaluate objectively.
What is ASTM A380 Passivation
They were placed on your computer when you launched this website. For certain exceptional applications, additional requirements which are not covered by this practice may be specified upon agreement between the supplier and the purchaser. On the other hand, some of the practices may be applicable for these purposes. Link to Active This link will always route to the current Active version of the standard. Recommended cleaning practices shall be followed for welds and weld-joint areas, specially critical applications, installed systems and post-erections.
This practice covers the standard recommendations and precautions for cleaning, descaling, and passivating of new stainless steel parts, assemblies, equipment, and installed systems. Historical Version s - view previous versions of standard.
The selection of procedures from this practice to be applied to the parts may be specified upon agreement between the supplier and the purchaser. Prices subject to change without notice.
In some cases, no more than degreasing or removal of gross contamination is necessary. In addition, visual inspection of internal surfaces is often impossible because of the configuration of the item. Changes from the previous issue A redline edition is available for this document, stan sb flat foot face with all changes visible.
In order to avoid ambiguity in the setting of requirements, it may be necessary for the purchaser to define precisely the intended meaning of passivation. Unless otherwise specified, it is this definition of passivation that is taken as the meaning of a specified requirement for passivation. This abstract is a brief summary of the referenced standard.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. It therefore in no way precludes the necessity for careful planning and judgment in the selection and implementation of such procedures.
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. Materials shall be precleaned. Visual inspection is suitable for the detection of gross contamination, scale, rust, and particulates, but may not reveal the presence of thin films of oil or residual chemical films. Combining values from the two systems may result in non-conformance with the standard. Such chemical treatment is generally not necessary for the formation of the passive metal oxide film.
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