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Standard Practice for Steel Castings, Surface Acceptance Standards, Visual Examination
1.1 This practice covers the acceptance criteria for the surface inspection of steel castings by visual examination. Four levels of acceptance StandardDetails are provided.
1.2 Acceptance levels utilize Steel Castings Research and Trade Association (SCRATA)2 graded reference comparators for the visual determination of surface texture, surface roughness, and surface discontinuities described as follows:
Acceptance levels
A – Surface Texture
B – Nonmetallic Inclusions
C – Gas Porosity
D – Solidification Discontinuities
E – Sand Expansion Discontinuities
F – Metal Inserts
G – Thermally Cut Surfaces
H – Mechanically Prepared Surfaces
J – Welded Surfaces
1.3 Descriptions of terms related to casting discontinuities are in Section 2.
1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International StandardDetails, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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