ASTM C704 PDF

This standard is issued under the fixed designation C ; the number immediately 1 This test method is under the jurisdiction of ASTM Committee C08 on. Abrasion Resistance of Refractory Materials at Room Temperature1 This standard is issued under the fixed designation C/CM; the number immediately. ASTM C – Download as PDF File .pdf), Text File .txt) or read online. ASTM C

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The glass plate may be placed in the abrasion tester with either face up. Flare the tubing at astk end to sit snugly inside a 9. Two test results that do not differ by more than the reproducibility interval shall be considered to be from the same population; conversely, two test results that do differ by more than the reproducibility interval shall be considered to be from different populations. Included are the abrading media weight gramsspecimen weight gramsspecimen weight loss due to abrasion gramsand the resultant volume loss cubic centimeters.

The second gauge is used only for verification. It asym the responsibility of the user of this standard to establish appropriate safety and zstm practices and determine the applicability of regulatory limitations prior to use. We are a non-profit group that run this website to share documents.

ASTM C-704

Affix the gauges to the blast gun as shown in Fig. No precision and bias statements can be made at this time. The diameter may be checked by the use of a gage consisting of a tapered stainless steel rod with the 4. When connected with the abrasion tester, ensure that the feed mechanism delivers the abrading media in the specified time of 6 x704 s. Your comments will receive careful consideration at a meeting of the responsible technical committee,1 which c074 may attend.

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Regulate the air pressure to kPa [65 psi].

No interference statements can be made at this time. Alternate dust handling systems such as asym to the outside are acceptable as long as the chamber pressure is maintained at the desired level. Replace any components that are worn prior to calibration. We need your help to maintenance this website. Dial to have a mirrored band for knife-edged pointer tip reflection to prevent parallax error.

ASTM C – Free Download PDF

A nonuniform, or unsymmetrical wear pattern indicates that the abrasion tester is not set up properly for example, the nozzle is not perpendicular to the specimen plate, the nozzle is not securely fixed into place, the nozzle to specimen distance is incorrect, the air pressure is varying, etc.

This is done by using a brass rod, 4.

Provide a gap between the two funnels to allow for air to be introduced to the particle stream. Your comments will receive careful consideration at c04 meeting of the d704 technical committee, which you may attend. Combining values from the two systems may result in nonconformance with the standard.

Provide an orifice approximately 4. Historical Version s – view previous versions of standard. This sleeve is glued or soldered in place inside the 9.

When the Carco Blast Gun is used, x704 will replace the steel nozzle supplied with the gun. Work Item s – proposed revisions of this standard. Confirm the density of the float glass plates by testing one plate in each batch. One by mm 4 by 4 in. Significance and Use 4. Take care to avoid segregation in large containers of abrading media.

Regulate the air pressure to the pressure indicated by the most recent calibration of the abrasion tester. Five different types of refractories, along with a float glass plate standard, were tested for ast, resistance by each laboratory. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part qstm the standard.

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The values stated in each system may not be exact equivalents; therefore, use each system independently of the other. Glass tube lots purchased as 7 mm outside diameter tube with a nominal 1. Current edition approved March 1, Provide an air gap between the orifice and the gun supply funnel to allow secondary air to asstm with the abrading media.

Use one gauge as the primary gauge; all pressure measurements are to be taken from that gauge. Check the length and diameter of each tube prior wstm use. Combining values from the two systems may result in non-conformance with the standard. Users of this standard are c7004 advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.

Several values are stated only in SI units as a matter of convention and to permit comparison of results. Check the air pressure before and after the abrading media is run through the system. Report the calibration value of the glass plates, the air pressure used, and the calibration date for the last calibration event run prior to running the samples. The nut is attached to the gun. Size px satm x x x Thank you for interesting in our services.

Normally, the free surface is the most appropriate test surface.