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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Check the air pressure before and after the asmt media is run through the system. Replace any components that are worn prior to calibration. This log may be kept either on paper or electronically. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Calculation and Report 9.
Please copy and paste this embed script to where you want to embed Embed Script. Inspect the air generator nozzle for wear before any test series and replace as necessary.
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. Permission rights to photocopy the standard may also be secured from the ASTM website www. Fit the nozzle tightly into the grommet in order to achieve adequate vacuum see 8. Interferences Factors known to Affect Results 5.
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Flare the tubing at one end to sit snugly inside a 9. 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. 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.
Dial to have a mirrored band for knife-edged pointer tip reflection to prevent parallax error. Used for weighing the abrading media and test specimens. Provide an air gap between the orifice and the gun supply funnel to allow secondary air to enter with the abrading media.
Maintain the mm 8 in. Ensure that there are not any flow obstructions between the gauge and the gun. Regulate the air pressure to kPa [65 psi]. Abrasion Tester 1 dwg 3 3. Provide an orifice approximately 4. Individually measure and choose all nozzle tubes to conform to a specified 4.
Ensure the gun is perpendicular to the specimen. Check the inside diameter periodically for wear Fig. Specimens were then randomly selected for distribution to the participating laboratories.
Refer to Table 2 for the acceptable precision statistics for float glass plate. For wstm ruggedness test, flint glass tube inside diameters of 4.
The glass tube is then positioned at a distance of 2 mm [0. Combining values from the two systems may result in nonconformance with the standard. Turn on the air pressure.
ASTM C – Free Download PDF
We need your help to maintenance this website. This test method can also be applied to castable refractories see Metric Dimensions, Practice C and Practice C and plastic refractories see Practice C If correcting the position of the glass nozzle does not correct asfm problem then check the condition of the venturi, the condition of the abrading media feed lines, and the blast gun.
Size px x x x x Regulate the air pressure to the pressure indicated by the most recent calibration astk the abrasion tester. When connected with the abrasion tester, ensure that the feed mechanism delivers the abrading media in the specified time of 6 15 s.
No astmm statements can be made at this time. Provide a gap between the two funnels to allow for air to be introduced to the particle stream. Ideal glass tube 3 Detailed prints for the construction of the test chamber are available at a nominal cost from ASTM International Headquarters. This is done by using a brass rod, 4.
Included are the abrading media weight gramsspecimen weight grams asrm, specimen weight loss due to abrasion gramsand the resultant volume loss cc704 centimeters. The nut is attached to the gun. 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.