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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If a continuing calibration veri? 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. If you feel that e14477 comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below.
Summary of Test Method 4. Results must be supported by acceptable preceding and subsequent veri? A number in parentheses indicates the e147 of last reapproval. The user should determine and correct astk cause, and repeat No other units of measurement are included in this standard. NOTE 7—If the unit does not have this function, the average blank must be subtracted from the total result.
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.
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Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. The testing and statistical analysis were performed in accordance with the provisions of Practice E, Plan A. Weigh to 6 0.
Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. Material is in chip form.
Current edition approved Aug. NOTE 13—Commercially available reference materials are not f1447 available at the concentration required to have a true mid-point check.
The prediction interval is de? Either acceptance limit criterion is acceptable for routine operation. The hydrogen is separated from other liberated gases such as carbon monoxide and? 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.
This titanium hydrogen reference material should have a hydrogen content greater than or approximately equal to the unknown samples aastm the scope of this test method 0. Calculate the average and standard deviation s of these results.
Several models of commercial analyzers are available and presently in use in industry. E447 14—Typically, repeatability standard deviation is a function of the concentration of the analyte. Specimens must be of an appropriate size to? Indications that the sample has overheated while being worked may include discoloration of the metal or the sample becoming too hot to handle without tools.
ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Hydrogen present in the sample is released as molecular hydrogen into the? The mid-range material must have a hydrogen concentration that is above the limit of detection, but below that of the high calibration point, preferably as close to the mid-point of w1447 calibration curve as possible.
The acceptance range for the veri? Six instruments were of the thermal conductivity hydrogen measurement system con? The ILS used an acceptance criterion where the value fell within the allowable limits of the certi? For specimens of unknown 2 Rinse the sample in acetone, and air dry. D Standard Reference Material: Originally approved in NOTE 16—If the analyzer does not offer these functions, calculate the hydrogen content by the following method: Preparation of Apparatus Standard Test Method f 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.
If the prediction interval does not encompass the certi?