1.1 This specification establishes the criteria for acceptance, prior to installation, of clay flue liners and chimney pots used for conveying hot gases in masonry chimneys.

1.2 The 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.

1.3 For installation of clay flue liners, see Practice C1283.