ASTM B644-11

ASTM B644-11 - 1.4.2011

Significance and Use

For purposes of determining compliance with the specified limits for chemical composition an observed or calculated value shall be rounded as indicated in accordance with the Rounding method of Practice E29.

Property Rounded Unit for Observed or Calculated Value

Chemical Composition Nearest unit in the last right-hand significant digit
used in expressing the limiting value

1. Scope

1.1 This specification establishes the requirements for copper nickel, ferro copper, phosphor copper, and silicon copper master alloys in ingot, shot, and waffle form to be used as addition agents for cast and wrought alloys.

1.2 Units—Values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

2. Referenced Documents

B846-24	Standard Terminology for Copper and Copper Alloys
E29-22	Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E255-23	Standard Practice for Sampling Copper and Copper Alloys for the Determination of Chemical Composition
E54-80(1996)	Standard Test Methods for Chemical Analysis of Special Brasses and Bronzes (Withdrawn 2002)
No. 4748	Determination of Iron Content; Na2EDTA Titrimetric Method Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036.
E76-88(1998)	Standard Test Methods for Chemical Analysis of Nickel-Copper Alloys (Withdrawn 2003)
E478-24	Standard Test Methods for Chemical Analysis of Copper Alloys
E1371-05	Standard Test Method for Gravimetric Determination of Phosphorus in Phosphorus-Copper Alloys or Phosphorus-Copper-Silver Alloys (Withdrawn 2006)
E62-89(1996)	Standard Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods)