E353-19 Standard Test Methods for Chemical Analysis of Stainless, Heat-Resisting, Maraging,and Other Similar Chromium-Nickel-lron Alloys

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Designation: E353-19 Standard Test Methods for Chemical Analysis of Stainless, Heat-Resisting, Maraging,and Other Similar Chromium-Nickel-lron Alloys11. Scope1.1 These test methods cover the chemical analysis ofstainless，heat-resisting.maraging.andother similarchromium-nickel-iron alloys having chemical compositionswithin the following limits:8. Interlaboratory Studies and Rounding CalculatedValues8.1These test methodls have been evaluated as directed inPractice El73 ( withdrawn 1997) or IsO 5725.Practice E173has been replaced by Practice E1601.The reproducibility，R2,of Practice E173 corresponds to the reproducibility index R ofPractice E1601.The repcatability, R i , of Practice E173 corrc-sponds to the repeatability index. r. of Practice El601.8.2 Rounding of test results obtained using this test methodshall be performed as directed in ASTM E29,RoundingMethod, unless an alternative rounding method is specified bythe customer or applicablc material spccification.MANGANESE BY THE META PERIODATESPECTROPHOTOMETRIC METHOD9.Scope9.1This method covers the dctermination of mangancsefrom 0.0l % to 5.00%，10. Summary of Method10.1 Manganous ions are oxidized to permanganate ions bytreatmcnt

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