ASTM C92

Standard Test Methods for Sieve Analysis and Water Content of Refractory Materials

Water Content: A 2 to 5 lb. representative sample of material should be submitted.

$135 per specimen

Sieve Analysis: Tyler Standard series sieves are used. A 2 to 5 lb. representative sample of material should be submitted.

1 to 4 Sieves: $135
Each Additional Sieve: $5
Full Analysis: 3, 4, 6, 8, 10, 14, 20, 28, 35 ,48 ,65, 100, 150, 200, 325 mesh: $195

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SIGNIFICANCE AND USE

Particle size distribution has a major affect upon most of the refractory properties. These test methods provide a means of measuring the distribution for the purpose of comparison to the desired distribution.

These test methods also cover determination of the water content of refractory materials in the wet condition and of air-dried samples received, so that the sieve analysis can be calculated on the dry basis.

These methods can produce data for specification acceptance, design purposes, manufacturing control, and research and development.
A reference set of standard matched or calibrated sieves shall be provided for use in checking the set of sieves used in the actual sieve analysis of samples. The sieves for use in sieve analysis may also be standard matched sieves or may be unmatched sieves conforming to the Specification Table in Specification E11, provided that such sieves will give results that differ by no more than 5% from those obtained with the reference set when the two sets are compared in accordance with the section of Test Method C429 on testing of sieves and samples splitters.

1. SCOPE

1.1 These test methods cover a wet and a dry method for sieve analysis of refractory materials.

1.1.1 Wet Sieve Analysis-Water promotes the slaking of clays and helps to separate fine particles, washing them from the larger grains. This method is recommended for use with materials that require water addition, and that slake in normal industrial use.

1.1.2 Dry Sieve Analysis - The dry method is not as effective as the wet method in determining the amount of material present in the smaller particle sizes. It is recommended (1) for clays, when the slaking action of water is undesirable, (2) when the material is in the form of coarsely ground grog and calcine, and (3) when the clay is to be used in such a way that the ultimate particle size is of secondary importance.

1.2 These test methods also cover determination of the water content of refractory materials in the wet condition and of air-dried samples as received, so that the sieve analysis can be calculated on the dry basis. Included is a method for obtaining the water content of other refractory materials, such as plastic refractories and wet mixes.

COPYRIGHT NOTICE

Extracted, with permission, from ASTM C92 Standard Test Methods for Sieve Analysis and Water Content of Refractory Materials, 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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