SUPERSEDED (see Active link, below)
Active (view current version of standard)
1.1 This specification covers refined ruthenium as sponge and powder in one grade as follows:
1.1.1 Grade 99.80 -Ruthenium having a purity of 99.8%.
1.1.2 Grade 99.90 -Ruthenium having a purity of 99.90%.Note 1-For the purposes of determining conformance with this specification, an observed value obtained from analysis shall be rounded to the nearest unit in the last right-hand place of figures used in expressing the limiting value in accordance with the rounding method of Practice E29.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
ICS Number Code 77.120.99 (Other non-ferrous metals and their alloys)
UNSPSC Code 12141739(Ruthenium Ru)