tbemeasuredonthecastingbody,afterbeingagreedbythesupplieranddemander,thehardnesscanbetestedonthetestlugofthecasting.ThehardnesstestblockisshowninFig.A.A3.3Thepositionofthehardnesstestblockonthecastingsshouldbenegotiatedbythesupplieranddemander,butthecharacterofserviceofthecastingsshouldnotbeaffected.A3.4Thehardnesstestshouldbeconductedonthefacethatconnectstothecastings.plywiththeprovisionsin5.1,andthehardnesstesttimesandpositionsofeachbatchshouldbenegotiatedbythesupplieranddemander.ordingtotheprovisionsin5.2.2and5.2.3.Fig.ACastinghardnesstestlugAdditionalexplanation:mission,missionShenyangCastingResearchInstitute.ThisstandardisdraftedbyShenyangCastingResearchInstitute,TsinghuaUniversityandWuxiSpheroidalGraphiteIronResearchInsitute.MajorStandarddraftersareLiangGuiyun,LiuBaicheng,PanCunxing.
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