within 72 hours in accordance with ASTM E “Standard Test Method for specification compliance in ASTM E “Standard Practice for Using. industry references The American Society for Testing Materials (ASTM) Standard. E, “Practice for Using Significant Digits in Test Data to Determine. ASME中国制造-ASTM E (原文)_化学_自然科学_专业资料。Designation: E29? 13 An American National Standard Standard Practice for.

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Table 1 gives examples of applying this rounding procedure. This practice is intended to assist the various technical committees in the use of uniform methods of indicating the number of digits which are to be considered significant in specification limits, for example, specified maximum values and specified minimum values. The following guidelines are intended to preserve the data for statistical summaries. Dimensional quantities in the practice are presented only as illustrations of calculation methods.

As far as is practicable with the calculating device or form used, carry out calculations with the observed values exactly and round only the? Zeros trailing the last nonzero digit for numbers represented with a decimal point are signi? For example, the number 0.

This abstract is a brief summary of the referenced standard. The asym are not binding on products or test methods treated.

Dimensional quantities in d29 practice are presented only as illustrations of calculation methods. Digits of ln x or log10 x are signi? This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? The average and standard deviation, unrounded, are x? This will be referred to as the absolute method, which is discussed in Section 5. Any approach to retention of signi?

Permission rights to photocopy the standard may also be secured from the ASTM website www. The Modern Metric System 3.


Excel: Round towards Even Per ASTM-E29 – Excel Articles

Individual reprints single or multiple copies of this standard may be obtained satm contacting ASTM at the above address or at phonefaxor service astm. Write down the standard deviation. The number of signi? When the measuring device has a vernier scale, the last digit recorded is the one from the vernier.

Excel: Round 0.5 towards Even Per ASTM-E29

Rounding so that w is below 0. ASTM Manual 7 provides methods for reporting x? Rounding this value to the nearest whole number gives a value of 4, based on the information in 6. In the absence of such speci?

For example, a modulus strength, stated as Pa, may have e299 few as two or as many as six signi? Reporting s to within 0.

ASME中国制造-ASTM E (原文)_百度文库

The choice of method depends upon the current practice of the particular branch of industry or technology concerned, and should therefore be speci? 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 should not be inferred that a measurement value is precise to the number of signi? The examples are not binding on products or test methods treated. The following applies to speci? Historical Version s – view previous versions of standard. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.

If you feel that your comments have not received a wstm hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. The guidelines for retaining significant figures in calculation and reporting of test results are presented in details. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.


When the number of observations is large more than 15 8. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of astmm rights, are entirely their own responsibility. This will be referred to as the rounding method,which is discussed in Section 6.

For certain purposes, such as where calculations involve differences of measurements close in magnitude, and for some statistical calculations, such asttm paired t-tests, autocorrelations, and nonparametric tests, reporting data to a greater number of signi? The conversion constant, A number in parentheses indicates the year of last reapproval.

This standard has been approved for use by agencies of the Department of Defense. 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. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

An alternative statement of the suggested rule is: Current edition approved Aug. Under these conditions, the speci?

ASTM E29 – 13

The suggested rule would report x? In the applications of this practice to a speci?

If two choices are possible, as when the digits dropped are exactly a 5 or a 5 followed only by zeros, choose that ending in an even d29.