ASTM C577

Standard Test Method for Permeability of Refractories

Air or nitrogen is used to determine permeability. The direction of flow should be indicated by arrows on the specimens. Testing of four 2" cube specimens of each type/brand is recommended by ASTM.

$260 per test of 4 specimens

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SIGNIFICANCE AND USE

This test method is used to measure the rate of flow of air or nitrogen through refractory brick and monoliths and to thus determine the permeability of tested products.

This test method is useful in research and development for establishing the relative permeability of products within comparable classes. It may also be used to identify acceptable products for design purposes and to establish permeability criteria for specification acceptance.

It must be recognized that permeability can vary in different directions and different parts of a refractory due to factors such as forming procedure, grain size and distribution, and heat treatment.

1. SCOPE

1.1 This test method covers determination of the permeability of refractory brick and monoliths, from which suitable specimens can be cut, at room temperature.

1.2 Units-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.

1.2.1 Exceptions-The apparatus used in this standard is only available in SI units (Section 4). Also, some of the calculations must use SI units only.

1.3 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.

COPYRIGHT NOTICE

Extracted, with permission, from ASTM C577 Standard Test Method for Permeability of Refractories, copyright ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. A copy of the standard may be purchased from ASTM International, phone 610-832-9555, e-mail: service@astm.org, website:www.astm.org.

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