2022年4月22日 · 1.1 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.

2022年2月25日 · The guidance published by the ASTM in their rule E29 says that numbers ending in 0.5 should round towards the even number. Theoretically, half the time the number rounds up and half the time the number rounds down, cancelling out the skew.

1.3 This recommended practice describes two commonly accepted methods of rounding data, identified as the Absolute Method and the Rounding-Off Method. In the application of this practice to a specific material or ma terials it is essential to specify which method is intended to apply.

6. Rounding Method 6.1 Where Applicable—The rounding method applies where it is the intent that a limited number of digits in an observed value or a calculated value are to be considered significant for purposes of determining conformance with specifications. 6.2 How Applied—With the rounding method, an observed

1.3 This practice describes two commonly accepted methods of rounding data, identified as the Absolute Method and the Rounding-Off Method. In the application of this practice to a specific material or materials it is essential to specify which method is intended to apply.

With the rounding method, the test result is rounded to the place of decimals given in specification limits. Then the test passes if that rounded value is within the limits. Specification limits are effectively extended by half the rounding interval.

2022年4月1日 · 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.

Statistics play an important role in the ASTM International standards you write, such as the development of precision and bias statements for test methods, running interlaboratory studies, knowing how to round numbers properly and determining sample

It outlines both an absolute method, where all digits in an observed or calculated value are considered significant, and a rounding method, where values are rounded to the desired level of precision before comparison to specification limits.

2019年1月1日 · Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications.