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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Originally approved in When rounding a number to one having a speci? The average and standard deviation, unrounded, are x? The guidelines for retaining significant figures in calculation and reporting of test results are presented in details.

Historical Version s – view astk versions of standard Work Item s – proposed revisions of this standard Translated Version s: Last previous edition approved in as E29 — Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or e9 phonefaxor service astm. Your comments are invited either for revision of astmm standard or for zstm standards and should be addressed to ASTM International Headquarters.

Conformance or nonconformance with the speci? Under these conditions, the speci? This standard has been approved for use by agencies of the Department of Defense. When the number of observations is large more than 15 8. Thus, any deviation, however small, outside the speci? Round test results to the place of the? It should not be inferred that a measurement value is precise to the number of signi? Any approach to retention of signi?

For example, if a buret is graduated in units of 0. The rounded value should then be compared with the speci? Write down the standard deviation. The following guidelines are intended to preserve the data for statistical summaries. For purposes of determining conformance with these speci?


ASTM E29 – 13

Thus, kPa without the decimal point indicates that the modulus is reported either to the nearest 10 or 1 kPa, which is ambiguous with respect to the asfm of signi?

Current edition approved Aug. The applicable standard deviation is the repeatability standard deviation. For example, in rounding 6 to the nearest 50, 6 is doubled giving 12 which becomes 12 when rounded to the nearest 6. Rounding so that w is below 0.

Link to Active This link will always route to the current Active version of the standard. ASTM does not give any warranty express or implied or make any representation awtm the contents of this abstract are accurate, complete or up to date.

The rounding interval for test results should not be greater than 0. As far as is practicable awtm the calculating device or form used, carry out calculations with the observed values exactly and round only the? The Modern Metric System 3.

Dimensional quantities in the practice are presented only as illustrations of calculation methods.

ASME中国制造-ASTM E (原文)_百度文库

Zeros trailing the last nonzero digit for numbers represented with a decimal point are signi? The number of signi?

Its aim is to outline methods which should aid in clarifying the intended meaning of specification limits with which observed values or calculated astn results are compared in determining conformance with specifications.

Referenced Documents purchase zstm The documents listed below are referenced within the subject standard but are not provided as part of the standard. For example, a modulus strength, stated as Pa, may have as few as two or as many as six signi?

The standard deviation of the test method is estimated to be, 0.


Dimensional quantities in the practice are presented only as illustrations of calculation methods. 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.

Permission rights to photocopy the standard may also be secured from the ASTM website www. That is, the rounding unit for the speci? For certain purposes, such as where calculations involve differences of measurements close in magnitude, and for some statistical calculations, such as atm t-tests, autocorrelations, and nonparametric tests, reporting data to a greater number of signi?

This abstract is a brief summary of the referenced standard.

This will be referred to as the rounding method,which is discussed in Section 6. ASTM Manual 7 provides methods for reporting x? Table aastm 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 aatm values.

The following applies to speci? Analyses on six specimens give values of 3. Its aim is to outline methods which should aid in clarifying the intended meaning of speci? Rounding this value to the nearest whole number gives a value of 4, based on the information in 6. A number in parentheses indicates the year of last reapproval. The choice of method depends upon the current practice of the particular branch of industry or technology concerned, and should therefore be speci?