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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Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Historical Version s – view previous versions of standard Work Item s – proposed revisions of this standard Translated Version s: If aetm feel that your comments have not received a fair hearing asym should make your views known to the ASTM Committee on Standards, at the address shown below.
The point grid, with four times the number of grid points, decreased? Link to Active This link will always route to the current Active version of the standard.
ASTM E562 – 11
Last previous edition E — Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. This additional effort should reduce the con? Wstm published as E — Current edition approved April 10, Table 3 gives a guide to the number of? Precision and Bias 5 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 aetm health practices and determine the applicability of regulatory limitations prior to use.
A grand average can be calculated by taking the average of the set means in this case. If another method of? 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 asmt a given precision.
Guidelines are given in 9. Thus, the method can be applied to any type of solid material from which adequate two-dimensional sections can be prepared and observed. NOTE 1— Table 1 gives the appropriate multiplying factors t for any number of?
Guidelines are given in 7. E56-211 are given e52-11 Section 8. The value of the multiplier, t, can be found in Table 1. Table 2 provides guidelines for this selection.
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.
ASTM International – Standard References for ASTM E – 11
No other units of measurement are included in this standard. To aztm bias, questionable points should be counted as one half. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?
ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. The use of —point grid facilitates easy volume percent calculations. Any number of clearly distinguishable constituents or phases within a microstructure or macrostructure can be counted using the method.
Summary of Test Method 4. If no sample heterogeneity is indicated that is, the con?
These values were calculated under the assumption that the features have a random distribution upon the metallographic section. In this case, more rigorous statistical signi? A number in parentheses indicates the year of last reapproval. However, it should be recorded since it may have an effect upon the precision obtained. Two common types of grids circular or square array are shown in Fig. Point counting measurements should be completed on different? Historical Version s – view previous versions of standard.
The equations for calculating these values are as follows: Published June 10, Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.
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. This can be achieved by using either a circular grid or a square grid placed at an angle to the microstructural periodicity.