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. 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.
Do not observe the image while translating to a new? Last previous edition E — Guidelines are given in Section 8. 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.
Work Item s – proposed revisions of this standard.
Standard Test Method f This additional effort should reduce the con? Individual reprints single astn multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. Link to Active This link will always route to the current Active version of the standard. Originally published as E — No other units of measurement are included in this standard.
This can be achieved by using either a circular grid or a square grid placed at an angle to the microstructural periodicity.
Thus, the method can be applied to any type of solid material from which adequate twodimensional sections can be prepared and observed. Two common types of grids circular or square array are shown in Fig.
Improving the Volume Fraction Estimate The equations for calculating these values are as follows: Current edition approved April 10, Summary of Test Method 4. The value of the multiplier, t, can be found in Astn 1. Thus, the method can be applied to any type of solid material from which adequate two-dimensional sections can be prepared and observed.
Diagrams of two possible grids, one with a circular e5621-1 and one with a square pattern, which are recommended for use, are shown in Fig.
This can be accomplished by moving the x and y stage mechanism a? Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM International – Standard References for ASTM E – 11
The use of —point grid facilitates e52-11 volume percent calculations. These values were calculated under the assumption that the features have a random distribution upon the metallographic section. A superscript epsilon e indicates an editorial change since the last revision or reapproval.
This time estimate can qstm be decreased to 15 min after some experience and familiarity with the point counting procedure and the microstructure analyzed are obtained. Published June 10, Your comments will receive careful s562-11 at a meeting of the responsible technical committee, which you may attend. Repeated point count measurements on an individual micrograph is not allowed.
Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.
Historical Version s – view previous versions of standard Work Item s – proposed revisions of this standard Translated Version s: Any number of clearly distinguishable constituents or phases within a microstructure or macrostructure can be counted using the method.
Table 3 gives a guide to the number of? Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such asym, are entirely their own responsibility. If another method of? In this case, more rigorous statistical signi? This method is applicable only to bulk opaque planar sections viewed with astmm If no sample heterogeneity is indicated that is, the con?
ASTM E562 – 11
Table 2 provides guidelines for this selection. To avoid bias, questionable points should be counted as one half. Precision and Bias 5 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.
This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? Guidelines are given in 7. Guidelines are given in 9. A grand average can be calculated by taking the average of the set means in this case.