ASTM C704 PDF

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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Ensure that there are not any flow obstructions between the gauge and the gun. Regulate the air pressure to kPa [65 psi]. Please copy and paste this embed script to where you want to embed Embed Astj. Connect the lower funnel to the feed inlet of the blast gun with clear flexible poly vinyl chloride tubing with an inside diameter of 6.

Included are the abrading media weight gramsspecimen weight gramsspecimen weight loss due to abrasion gramsand the resultant volume loss cubic centimeters.

ASTM C-704

When connected with the abrasion tester, ensure asm the feed mechanism delivers the abrading media in the specified time of 6 15 s. Affix the gauges to the blast gun as shown in Fig. Do not completely fill or flood the gun supply funnel with material. The glass plate may be placed in the abrasion tester with either face up. This test method can also be applied to castable refractories see Metric Dimensions, Practice C and Practice C and plastic refractories see Practice C Take the statistically significant effect of this small tube inside diameter variation d704 consideration.

If the samples are allowed to sit before being weighed, they may pick up moisture resulting in an inaccurate test result.

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Several values are stated only in SI units as a matter of convention and to permit comparison of results. Check the inside diameter periodically ast wear Fig. Refer to Table 2 for the acceptable precision statistics for float glass plate.

Several factors were found to cause statistically significant effects on measured results see Section The feed funnel contains a suitable orifice to obtain a flow time of 6 15 s while delivering g of abrading media into the gun supply funnel.

Permission rights to photocopy the standard may also be secured from the ASTM website www. All specimens were 4. Several values are stated only in SI units as a matter of convention and to permit comparison of results.

Ensure that the air supply is able to supply an adequate volume of air such that the air pressure does not fluctuate during the test run. This log may be asm either on paper or electronically. Two test results that do not differ by more than the repeatability interval shall be considered astj be from the same population; conversely, two test results that do differ by more than the repeatability interval shall be considered to be from different populations.

The values stated in each v704 may not be exact equivalents; therefore, use each system independently of the other.

The use of appropriate drying equipment is necessary in order to achieve consistent results. Calculation and Report 9. Size px x x x x This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years and if f704 revised, either reapproved or withdrawn.

When the Carco Blast Gun is used, this will replace the steel nozzle supplied with the gun. Provide an orifice approximately 4.

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Splitting possibly with use of a riffler or another similar procedure and reblending may be necessary to obtain a grit sample conforming to the required screen analysis. For brick samples test an unbranded surface. Please fill this form, we will try to respond as soon as possible. Two test results that do not differ by more than the reproducibility interval ashm be c74 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.

If the abrasion plate results do astk meet the standard, adjust the air pressure to the gun and run the calibration procedure again using a new glass plate each time until an abrasion of 9.

Ensure that the main supply funnel has sufficient volume to hold the required g of silicon carbide abrading medium. Highly Abrasion Resistant Materials S1.

ASTM C – Free Download PDF

If correcting the position of the glass nozzle does not correct the problem then check the condition f704 the venturi, the condition of the abrading media feed lines, and the blast gun.

This can be achieved by using a second glass plate under the calibration plate as a spacer, or by adjusting the height of the sample holding platform. Typically a to g capacity balance is required.

Abrasion Tester 1 dwg 3 3. Significance and Use 4. No interference statements can be made at this time. Confirm the density of the float glass plates by testing one plate in each batch.