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Significance and Use
3.1 Fireclay steel-teeming nozzles and sleeves are classified by volume reheat change. Bloating of some refractories results in irregular reheat dimensions, which are difficult to measure. This practice determines the volume without depending upon physical linear measurements.
3.2 Blast furnace checkers that have irregular cross-sections are classified by “creep properties.” This practice determines the average cross-sectional area without requiring area measurements.
1.1 This practice covers the methods of calculating areas, volumes, and linear changes of irregularly shaped refractory specimens.
1.2 Areas of irregular (both conventional and shaped) specimens are required for determining the creep of certain refractory products.
1.3 Linear and volume changes or irregularly shaped refractories are required for determining reheat change.
1.4 The values stated in SI units are to be regarded as the standard.
1.5 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C20 Test Methods for Apparent Porosity, Water Absorption, Apparent Specific Gravity, and Bulk Density of Burned Refractory Brick and Shapes by Boiling Water
C830 Test Methods for Apparent Porosity, Liquid Absorption, Apparent Specific Gravity, and Bulk Density of Refractory Shapes by Vacuum Pressure
ICS Number Code 81.080 (Refractories)
|Link to Active (This link will always route to the current Active version of the standard.)|
ASTM C1407-98(2016), Standard Practice for Calculating Areas, Volume, and Linear Change of Refractory Shapes, ASTM International, West Conshohocken, PA, 2016, www.astm.orgBack to Top