Cast Shot and Grit Size Specifications for Peening and Cleaning

Author:  SAE
Source:  SAE: J444 JUN2010
Doc ID:  2010041
Year of Publication:  2010
RATIONALE Due to NADCAP audit findings on the all pass sieves in Figure 1 and 2 the group is requesting the Figure 1 and 2 all pass changed to 0% and the following be added to the reference section. ASTM E 29 Using Significant Digits in Test Data to Determine Conformance with Specification. Along with the following statement as recommend in E-29. The following applies to all specified limits in this standard: For purposes of determining conformance with these specifications, an observed value or a calculated value shall be rounded "to the nearest unit" in the last right-hand digit used in expressing the specification limit, in accordance with the rounding method of ASTM Practice E 29. This document has been reaffirmed to comply with the SAE 5-Year Review policy.

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