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ASTM E415 PDF

Standard Test Method for Analysis of Carbon and Low-Alloy Steel by Spark Atomic Emission Spectrometry – ASTM E Standard Number, ASTM E – Title, Standard Test Method for Analysis of Carbon and Low-Alloy Steel by Spark Atomic Emission. Designation: E − 15Standard Test Method for Contact ASTM Customer Standards volume information, refer to the standard’s Document Summary page.

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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 the address shown below. The wall thickness of the mold is approximately 32 mm 11?

Originally published as E — Preparation of Apparatus NOTE adtm instructions given herein apply to most spectrometers; however, some settings and adjustments may need to be varied, and additional preparation of the equipment may be required. 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.

A capacitor discharge is produced between the? There shall be at least three calibrants for each element, spanning the required concentration range. Condition a fresh counter electrode with two to six excitations using the operating conditions in accordance with Summary of Test Method 4.

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The mass fraction ranges of the elements listed have been established through cooperative testing 2 of reference materials. Masks shall be provided in the spectrometer to eliminate scattered radiation. NOTE 1—The concentration ranges of the elements listed have been established through cooperative testing2 of reference materials.

ASTM-E, –

FORMAT Single User Subscription Site License Subscription BOOKS All Books PACKAGES All Packages EDITION to PUBLISHER. Clean the lens or protective window after approximately to excitations to minimize transmission losses.

Your comments are invited either for revision of this standard or for additional standards and should be addressed to E451 Headquarters. The number of acceptable excitations on an electrode varies from one instrument to another, and should be established in each laboratory.

This adtm be done initially and as often as necessary thereafter to maintain proper alignment.

Means of changing the? Standardization will be done anytime veri? Included, in addition to the original data of Test Method E — 71, are data from cooperative testing of a broader range of reference materials to expand the element concentration ranges.

The absorption of the radiation by air in this region atm overcome by evacuating the spectrometer and? Nominal values found to be adequate are listed as e41 If results do not fall within the control limits established in However, if boron nitride disks are used to mechanically restrict the excited area of the sample, a properly excited specimen may not exhibit a dark ring. NOTE 2—Clean the excitation chamber when the counter electrode is replaced. The reference materials and specimens should be of similar metallurgical condition and composition.

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NOTE 3—A pump with a displacement of at least 0. Excitation and Radiation Measurements H Resistance, V Peak voltage, V residual 2.

There were no books found for the applied search filters. Center the analytical gap on the optical axes of the spectrometer.

ASTM E415 – 17

It is not within the scope of an ASTM test method to prescribe the minute details of the apparatus preparation which may differ not only for each manufacturer, but also for different equipment from the same manufacturer.

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The potentials on the capacitors may be read directly, or a number of different readout systems may be employed which yield e451 or logarithmic functions of the potentials and which may be displayed as relative numbers or as numbers calibrated directly in terms of percent. NOTE 14—With certain spectrometers, a properly excited specimen usually exhibits a dark ring around the pitted sparked area. With a thoriated tungsten electrode, it has been reported that a hundred or more excitations can usually be made before replacement.

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