ASTM E562-11 PDF
ASTM EStandard Test Method for Determining Volume 1 95 % Con? dence Interval Multipliers No. of Fields n 5 6 7 8 9 10 11 12 13 ASTM Standard E, using an image analysis routine with Leica .. of Constructional Steel Research 64(11) doi: / ASTM E Standard Test Method for Determining Volume Fraction by Systematic Manual Point Count. Front Cover. American Society for Testing and.
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However, it should be recorded since it may have an effect upon the precision obtained. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. This test method is based upon the stereological principle that a grid with a number of regularly arrayed points, when systematically placed over an image of a two-dimensional section through the microstructure, can provide, after a representative number of placements on different fields, an unbiased statistical estimation of the volume fraction of an identifiable constituent or phase 1, 2, 3.
Historical Version asm – view previous versions of standard.
ASTM International – Standard References for ASTM E – 11
Link to Active This link will always route to the current Active version aztm the standard. Thus, the method can be applied to any type of solid material from which adequate twodimensional sections can be prepared and observed. 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.
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.
The values in Table 2 do not correspond to theoretical constraints; but, by using these values, empirical observations have shown that the method is optimized for a given precision. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. Guidelines are given in Section 8. Guidelines are given in 7. This test method has been s562-11 4 as being superior to other manual methods with regard to effort, bias, and simplicity.
The use of —point grid facilitates easy volume percent calculations. No other e56211 of measurement are e562-1 in this standard.
e56-211 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. If no sample heterogeneity is indicated that is, the con? Originally published as E — Repeated point count measurements on an individual micrograph is not allowed.
Standard Test Method f To avoid bias, questionable points should be counted as one half. This method is applicable only to bulk opaque planar sections viewed with re? Point counting measurements should be completed on different? Table 2 provides guidelines for this selection. A number in parentheses indicates the year of 5e62-11 reapproval.
ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. These values were calculated under the assumption that the features have a random distribution upon the metallographic section.
This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? A superscript epsilon e indicates an editorial change since the last revision or reapproval. Two common types of grids circular or square array are shown in Fig. This time estimate can probably be decreased to 15 min after some experience and familiarity with the point counting procedure and the microstructure analyzed are obtained.
ASTM E562 – 11
Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. Historical Version s – view previous versions of standard Work Item s – proposed revisions of this standard Translated Version s: Diagrams of two possible grids, one with a circular pattern and one with a square pattern, which are recommended for use, are shown in Fig.
Work Item s – proposed revisions of this standard. This can be accomplished by moving the x and y stage mechanism a?
This can be achieved by using either a circular grid or a square grid placed at an angle to the microstructural periodicity. In this case, more rigorous statistical signi? Published June 10,