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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Round test results to the place of the? For example, the number 0. 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.
Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. In such cases, the following procedure can be used for rounding to any interval: Table 1 gives examples of applying this rounding procedure. The following applies to speci? When the number of observations is large more than 15 8.
The number of signi? This abstract is a brief summary of the referenced standard. In the applications of this practice to a speci? Its aim is to outline methods which should aid in clarifying the intended meaning of specification limits with which observed values or calculated test results are compared in determining conformance with specifications.
Write down the standard deviation. This will be referred to as the rounding method,which is discussed in Section 6. The rounded value should then be compared with the speci?
This will be referred to as the absolute method, which is discussed asttm Section ast. Rounding so that w is below 0. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.
Link to Active This link will always route to the current Active version of the standard. For certain purposes, such as where calculations involve differences of measurements close in magnitude, and for some statistical calculations, such as paired t-tests, autocorrelations, and nonparametric tests, reporting data to a greater number of signi?
ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date. Conformance or nonconformance with the speci? For example, the numbers The guidelines for retaining significant figures in calculation and reporting of test results are presented in details.
Increase by 1 the digit in the last place retained, if there are non-zero digits beyond this 5. Historical Version s – view previous versions of standard. When 12 is divided by 2, the resulting number, 6is the rounded value of 6 The suggested rule would report x?
Permission rights to photocopy the standard may also be secured from the ASTM website www. For example, a modulus strength, stated as Pa, may have as few as two or as many as six signi? This standard has been approved for use by agencies of the Department of Defense. Guidelines for Retaining Signi? Tensile Requirements Tensile strength, psi Yield point, min, psi Elongation in 2 in.
NOTE 2—Using a calculation subroutine that has been programmed to perform the rounding procedure described in 6.
Dimensional quantities in the practice are presented only as illustrations of calculation methods. The Modern Metric System 3.
ASTM Manual 7 provides methods for reporting x? The average and standard deviation, unrounded, are x? Under these conditions, the speci? Last atm edition approved in as E29 — Its aim is to outline methods which should aid in clarifying the intended meaning of speci?
For purposes of determining conformance with these speci? If two choices are possible, as when the digits dropped are exactly a 5 or a 5 followed only by zeros, asmt that ending in an even digit. Any approach to retention of signi?
Zeros trailing the last nonzero digit for numbers represented with a decimal point are signi?
The applicable standard deviation is the repeatability standard deviation. In the absence of such speci? Dimensional quantities in astk practice are presented only as illustrations of calculation methods. Two commonly accepted methods of rounding data, identified as the absolute method and the rounding method are described.