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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The value of the multiplier, t, can be found in Table 1. 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.
This can be accomplished by moving the x and y stage mechanism a? Improving the Volume Fraction Estimate No other units of measurement are included in this standard.
Guidelines are given in 7. If no sample heterogeneity is indicated that is, the con? The use of —point grid facilitates easy volume percent calculations.
This can be achieved by using either a circular grid or a square grid placed at an angle to the microstructural periodicity. Users of this standard are expressly advised that determination of the validity of any such patent qstm, and the risk of infringement of such rights, are entirely their own responsibility.
A superscript epsilon e indicates an editorial change since the last revision or reapproval. Individual reprints single or multiple copies of this standard may e562-1 obtained by contacting ASTM at the above address or at phonefaxor service astm.
Do not observe the image while translating to a new? ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. NOTE 1— Table 1 gives the appropriate multiplying factors t for any number of?
Thus, the method can be applied to any type of solid material from which adequate two-dimensional sections can be prepared and observed. These values were calculated under the assumption that the features have a random distribution upon the metallographic section.
ASTM International – Standard References for ASTM E – 11
Summary of Test Method 4. Published June 10, Originally published as E — Repeated point count measurements on an individual micrograph is not allowed. Precision and Bias 5 Current edition approved April 10, Link to Active This link will always route to the current Active version of the standard. This test method has been described 4 as being superior to other manual methods with regard to effort, bias, and simplicity.
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. To avoid bias, questionable points should be counted as one half. Point counting measurements should be completed on different?
ASTM E562 – 11
This additional effort should reduce the con? Thus, the method can be applied to any type of solid material from which adequate twodimensional sections can be prepared and observed. Table 2 provides guidelines for this selection.
Last previous edition E — A grand average can be calculated by taking the average of e562-111 set means in this case. 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 method is applicable only to bulk opaque planar sections viewed with re?
If another method of? 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 astj 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 astn constituent or phase 1, 2, 3.
However, it should be recorded since it may have an effect upon the precision obtained. A number in parentheses indicates the year of last reapproval.