ASTM A380/A380M-17 pdf download

12-21-2020 comment

ASTM A380/A380M-17 pdf free download.Standard Practice for Cleaning, Descaling, and Passivation of Stainless Steel Parts, Equipment, and Systems.
ASTM A380/A380M-17 covers recommendations and precautions for cleaning, descaling, and passivating of new stainless steel parts, assemblies, equipment, and installed systems. These recommendations are presented as procedures for guidance when it is recognized that for a particular service it is desired to remove surface contaminants that may impair the normal corrosion resistance, or result in the later contamination of the particular stainless steel grade, or cause product contamination.
7. Inspection After Cleaning
7. 1 General—Inspection techniques should represent careful, considered review of end use requirements of parts. equipment. and systems. There is no substitute for good. uniform, cleaning practices which yield a metallurgically sound and smooth surface, followed by adequate protection to lreserve that condition. Establishment of the most reliable tests and test standards for cleanness are helpful in attaining the desired performance of parts. equipment, and systems. Testing should he sufficiently extensive to ensure the cleanness of all surfaces exposed to process fluids when in service. The following represent some tests that have been successfully applied to stainless steels. The purchaser shall have the option of specifying in his purchase documents that any of these quality assurance tests be used as the basis for acceptability of the cleanness of the stainless steel item, the absence of iron on the surface, or both.
8.6 Safety—Cleaning operations often present numerous hazards to both personnel and facilities. [Material] Safety Data Sheets (MSDS/SDS) should be consulted to determine the hazards of handling specific chemicals.
8.6. 1 Precautions shall he taken to protect personnel. equipment, and facilities. This includes provisions for venting of explosive or toxic reaction-product gases, safe disposal of used solutions, provision of barriers and warning signs. provisions for safe transfer of dangerous chemicals, and maintenance of constant vigilance for hazards and leaks during the cleaning operation.
8.6.2 The physical capability of the item or system to be cleaned, together with its foundations, to withstand the loads produced by the additional weight of fluids used in the cleaning operation. shall be established before the start of cleaning operations.
8.6.3 Insofar as possible. chemicals having explosive, toxic. or obnoxious fumes should he handled out of doors.
8.6.4 The area in which the cleaning operation is being conducted should he kept clean and free of debris at all times. and should be cleaned upon completion of the operation.
9. Keywords
9. 1 austenitic stainless steels; cleaning; corrosion; corrosive service applications; descaling: duplex stainless steels; ferritic stainless steels; martensitic stainless steels; pickling; stainless steels.ASTM A380/A380M-17 pdf free download.

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