Referenced Documents2.1 ASTM Standards: 2C78 Test Method for Flexural Strength of Concrete (UsingSimple Beam with Third-Point Loading)C1161 Test Method for Flexural Strength of AdvancedCeramics at Ambient TemperatureE4 Practices for Force Verif i cation of Testing MachinesE177 Practice for Use of ...
格式:PDF 页数:4 大小:31.76KB《ASTM A756-1994(2001) Standard Specification for Stainless Anti-Friction Bearing Steel《耐磨不锈轴承钢的标准规范》.pdf》由会员分享,可在线阅读,更多相关《ASTM A756-1994(2001) Standard Specification for Stainless Anti-Friction Bearing Steel《耐磨不锈轴承钢的标准规范》.pd...
格式:PDF 页数:4 大小:37.21KB 《ASTM B394-2003 Standard Specification for Niobium and Niobium Alloy Seamless and Welded Tubes《铌和铌合金无缝及焊接管标准规范》.pdf》由会员分享,可在线阅读,更多相关《ASTM B394-2003 Standard Specification for Niobium and Niobium Alloy Seamless and Welded Tubes《铌和...
11.3 The tubing shall be free of injurious defects and shall have a workmanlike nish. Surface imperfections such as handling marks, straightening marks, light die marks, or shallow pits are not considered injurious. 11.4 The tubing shall be free of scale. In the case of thermally treated ...
ed in Test Method C78 but incorporating a closed-loop, servo-controlled testing system and roller supports that are free to rotate on their axes. Load and net de?ection are monitored and recorded to an end-point de?ection of at least 1?150 of the span. Data are recorded and plotted by...
28、salt to thespecific end point, mL, andVb= volume of titrant used to titrate the blank, mL.7.5.2 Phenolphthalein Indicator SolutionDissolve 0.1 g6 0.01 g of pure solid phenolphthalein in 50 mL of water, freeof CO2, and 50 mL of ethanol.7.6 Titration SolventAdd 500 mL of toluene (...
11、ricants from titanium surfaces if followedby thorough conditioning and cleaning as described in Section4.3.2 The sand used for blasting should be a high-grade,washed, iron-free, silica sand. If carbon or low-alloy steelproducts are sandblasted in the same facility, the sand used forcleani...
7、9/C39M Test Method for Compressive Strength of Cylindrical Concrete SpecimensC7878/C78M Test Method for Flexural Strength of Concrete (Using Simple Beam with Third-Point Loading)C174/C174M Test Method for Measuring Thickness of Concrete Elements Using Drilled Concrete CoresC496/C496M Test Meth...
25、n each weld seam.6.1.6 At the option of the manufacturer, pipe shall be eitherhot finished or cold finished.6.1.7 The pipe shall be free of scale and contaminatingexogenous iron particles. Pickling, blasting, or surface finish-ing is not mandatory when pipe is bright annealed. Thepurcha...
Procedure9.1 Follow Test Methods D202 except use a specimen weight equivalent to 1 g of moisture-free pulp.AQUEOUS EXTRACT pH10. Significance and Use10.1 46、The extract pH determination measures the degree to which a pulp alters the hydrogen-hydroxyl equilibrium of pure water.The test gives ...