1.1 This specification covers glass hydrometers of various scale graduation systems, as required by the ASTM Test Methods in which they are used.
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.
More ASTM standard pdf
ASTM D2175-97(2007)
Standard Test Method for Book Bulk and Book Bulking Number of Paper (Withdrawn 2010)
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