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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. Cool the specimen after two excitations to prevent overheating, if required.
Make a good electrical ground. The technique of analyzing reference materials along with unknowns and performing the indicated mathematical corrections may also be used to correct for interference effects and to compensate for errors resulting from instrument drift. A superscript epsilon e indicates an editorial change since the last revision or reapproval.
It is the responsibility astk the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Standardization will be done anytime veri? Calibration, Standardization, and Veri? The precision data for the three unknowns is shown in Table 2. The wall thickness of the mold should be 32 mm 1. Equipment varies among laboratories. Cracks, voids, pits, moisture, or inclusions will limit the sampling and the accuracy of a determination.
Capacitance d-c charged ,?
ASTM E1086 – 14
The technique of analyzing reference materials with unknowns and performing the indicated mathematical corrections may also be used to correct for interference effects and to compensate for errors resulting from instrument drift. Prepare the surface to be analyzed on a suitable belt or disk grinder. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.
Department of Commerce, Gaithersburg, MD H Resistance, V Potential, V 7. Active view current version of standard. Flush, s Preburn, s Integration, s 7 20 20 Argon Flow 0. For example, a disk-shaped specimen should have a ring of excitation marks around its outer edge and approximately 6 mm 0.
Link to Active This link will always route to the current Active version of the standard. Grinding materials with grit sizes ranging from 60 to have been found satisfactory.
ASTM International – Standard References for ASTM E – 14
Current edition approved Jan. If the readout is not in direct concentration units, use this value to obtain the concentrations from the curves, or related scale values and concentration by reference to a table that has been previously prepared. The ring is placed on a? F d-c charged Inductance,? Link to Active This link will always route to the current Active version of the standard.
These reference materials shall be homogeneous, and free of voids or porosity. Work Item s – proposed revisions of this standard. The agreement between the results obtained by chemical methods and those obtained by this test method is displayed in Table 3. Work Item s – proposed revisions of this standard. Spectral lines are listed in Table 1. E — 94 This procedure is suitable for manufacturing control and inspection testing.
A variety of such systems are commonly used.
A minimum of three reference materials shall be used for each element. Preparation of Samples 9. Interference corrections will not be necessary if: Place the freshly surfaced specimen on the atm stand in a manner to effect a gas-tight seal and adequate argon? At the atm of the exposure period, the charge on each capacitor is measured, and displayed or recorded as a relative energy or concentration. Flush, s Preburn, s Exposure, s 2 10 10 or 15 Argon Flow 0.
Avoid the center of cast specimens because there is more chance of quench cracks and segregation.
A number in parentheses indicates the year of last reapproval. Examine the specimen after each excitation to evaluate the quality of excitation. Historical Version s – view previous versions of standard.