ASTM ER Standard Test Method for Determination of Hydrogen in Titanium and Titanium Al_材料科学_工程科技_专业资料。. ASTM E() Standard Test Method for Determination of Hydrogen in Titanium and Titanium Alloys by Inert Gas Fusion Thermal Conductivity/Infrared. Buy ASTM E TEST METHOD FOR DETERMINATION OF HYDROGEN IN TITANIUM AND TITANIUM ALLOYS BY INERT GAS.
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Summary of Test Method 4. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. Make a minimum of two determinations using a specimen as directed in Sm, there is evidence that the repeatability of the particular instrument is not acceptable for use with this test method. An alternate procedure e14477 be implemented where this value should agree with the certi?
If the prediction interval does not encompass the certi? D Standard Reference Material: It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
National Institute of Standards and Technology. The testing and statistical analysis were performed in accordance with the provisions asmt Practice E, Plan A.
ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.
Specimens must be of an appropriate size to? The prediction interval is de?
Chemical Testing at WMT&R Inc.
Weigh to 6 0. No other units of measurement are included in this standard. Use a fresh crucible each time. NOTE 14—Typically, repeatability standard deviation is a function of the concentration of the analyte. This titanium hydrogen reference material should have a hydrogen content greater than or approximately equal to the unknown samples within the scope of this test method 0.
Calibration was performed utilizing a single calibration material NBS?
Analyze at least three reference material specimens to determine the calibration slope Note 8. NOTE 16—If the analyzer does not offer these f1447, calculate the hydrogen content by the following method: NOTE 9—Some instruments have expanded astn capabilities that allow multi-point calibration which may improve the accuracy and precision of the calibration over the single-point calibration methodology as tested in the current interlaboratory study ILS.
If your results are not comparable, investigate and correct the cause.
Standard Test Method f NOTE 15—The presence of bias between the reference material used in NOTE 3—Regardless of the method used, the sample must not be allowed to overheat, as this will adversely affect the results of the analysis. Precision and Bias Either acceptance limit criterion is acceptable for routine operation.
Several models of commercial analyzers are available and presently in use in ast. NOTE 2—Carrier gases vary by instrument model and include highpurity argon, nitrogen, and helium. This prediction interval may be calculated using Eq 1 and the s and n values for the mid-range reference material. Use the size crucibles recommended by the manufacturer of the instrument. It is assumed that all who use this test method will be trained analysts capable of performing common laboratory procedures skillfully and safely.
Last previous edition approved in as E — Indications that the sample has overheated while being worked may include discoloration of the metal or the sample e4147 too hot to handle without tools.
NOTE 13—Commercially available reference materials are not always available at the concentration required to have a true mid-point check.