ASTM B664-90(2000) PDF

1.1 This specification defines the criteria for composition and other requirements for brushes with a nominal silver content of 80%, by weight, with the balance being substantially graphite.

1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. 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.

1.3 It is the responsibility of the user to become familiar with all hazards including those identified in the appropriate Material Safety Data Sheet for this product/material as provided by the manufacturer.