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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The acceptance range for the veri? A number in parentheses indicates the year of last reapproval. If your results are not comparable, investigate and correct the cause.
National Institute of Standards and Technology. Dial the sample weight or a multiple of the sample weight on the weight compensator and use the where: Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.
This axtm is subject to revision at any time by the responsible technical committee and must be reviewed every? Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.
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.
Standard Test Method f Calibration was performed utilizing a single calibration material NBS? asfm
The hydrogen is separated from other liberated gases such as carbon monoxide and? Use the size crucibles recommended by the manufacturer of the instrument. The prediction interval is de? Other methods, such as turning down on a lathe, may be employed for reducing sample size and removing the surface of the sample Note 3. Material is in chip form. NOTE 9—Some instruments have expanded computer 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.
It is assumed that all who use this test method will e1474 trained analysts capable of performing common laboratory procedures skillfully and safely. The accuracy of this test method may be judged by comparing the results obtained from certi? Specimens must be of an appropriate size to? Rinse the sample in acetone, and air dry. Make a minimum of two determinations using a specimen as directed in If a ashm calibration veri? It is expected that the work will be performed in a properly equipped laboratory.
An alternate procedure can be implemented where this value should agree with the certi? NOTE 7—If the unit does not have this function, the average blank must be subtracted from the total result.
The ILS used an acceptance criterion where the value fell within the allowable limits of the certi? No other units of measurement are included in this standard. If the prediction interval does not encompass the certi? The accuracy of this test method is largely dependent upon the absence of bias in the hydrogen values assigned to the reference materials and upon the homogeneity of these materials.
NOTE 3—Regardless of the aetm used, the sample must not be allowed to overheat, as this will adversely affect the results of the analysis. This prediction interval may be calculated using Eq 1 and the s and n values for the mid-range reference material. NOTE 14—Typically, repeatability standard deviation is a function of the concentration of the analyte.
Calculate the average ast standard deviation s of these results. Several models of commercial analyzers are available and presently in use in industry. Six instruments atsm of the thermal conductivity hydrogen measurement system con? If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at astn address shown below. Summary of Test Method 4.
E Standard R1447 Material under development: Reagents and Materials 8. For specimens of unknown 2 Sm, there is evidence that the repeatability of the particular instrument is not acceptable for use with this test method.
Chemical Testing at WMT&R Inc.
The testing and statistical analysis were performed in accordance with the provisions of Practice E, Plan A. This mechanism will electronically compensate for the blank value.
Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. Either acceptance limit criterion is acceptable for routine operation.