Historical
ASTM C159-06
Standard Specification for Vitrified Clay Filter Blocks
1.1 This specification establishes the criteria for acceptance, prior to installation, of vitrified clay filter block used in trickling filters for the treatment of sewage and industrial wastes.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
ASTM International [astm]