ASTM-A799 2010

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A799/A799M-10 Standard Practice for Steel Castings, Stainless, Instrument Calibration, for Estimating Ferrite Content

Published By	Publication Date	Number of Pages
ASTM	2010	4

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Categories: 77.140.80 - Iron and steel castings, ASTM

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Description

1.1 This practice covers the procedure for calibration of instruments to be used for estimating the ferrite content of the microstructure of cast stainless steels by magnetic response or measurement of permeability. This procedure covers both primary and secondary instruments.

1.1.1 A primary instrument is one that has been calibrated using National Institute of Standards and Technology-Standard Reference Material (NIST-SRM) thickness coating standards. It is a laboratory tool to be used with test specimens. Some primary instruments may be used to directly measure the ferrite content of castings.

1.1.2 A secondary instrument is one that has been calibrated by the use of secondary standards that have been measured by a calibrated primary instrument. Secondary instruments are to be used to directly measure the ferrite content of castings.

1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

1.2.1 Within the text, the SI units are shown in brackets.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. 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.

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology
2	Significance and Use Apparatus Calibration
3	TABLE 1
4	Checking Calibration Calibration of Secondary Instruments Checking of Calibration of Secondary Instruments Keywords TABLE 2

Additional information

Standard Title	A799/A799M-10 Standard Practice for Steel Castings, Stainless, Instrument Calibration, for Estimating Ferrite Content
Published Code	ASTM
Publication Date	2010
Pages Count	4
ICS Codes	77.140.80 - Iron and steel castings

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ASTM-A799 2010

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