Astm c754 pdf free download

Where the hanger or spacer length is more than the maximum framing spacing allowed, they become the attachment means and shall he spaced in accordance with Table I.

Hangers and inserts fr,r Suspended Ceilings: Minimum No. Wire hangers shall be saddle-tied around main runners and furring members so as to prevent turning or twisting of the member and to develop the full strength of the hanger with a minimum of three complete wraps around itself within 3 in.

Wirc for attaching main runners and rigid furring channels directly to concrete beams and joists. Flai Channel Bea,n Hanger—For attaching indirect hung grid suspension ceiling systems to 1. Wood Con. A hole shall be drilled through the wood member not less than 3 in. Flat Han ger. Nails shall he not less than 3 in. ASTM C pdf download. Your email address will not be published. ASTM C. A number in parentheses indicates the year of last reapproval. The nut is attached to the gun. Take the statistically significant effect of this small tube inside diameter variation into consideration.

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. Turn on the air pressure. Alternate dust handling systems such as venting to the outside are acceptable as long as the chamber pressure is maintained at the desired level. Several values are stated only in SI units as a matter of convention and to permit comparison of results.

This test method can also be applied to castable refractories see Metric Dimensions, Practice C and Practice C and plastic refractories see Practice C Cc that there are not any flow obstructions between the gauge and xstm gun.

The values stated in each system may not be exact equivalents; therefore, use each system independently of the other. Five different types of refractories, along with a float glass plate standard, were tested for abrasion resistance by each laboratory. Fit the nozzle tightly into the grommet in order to achieve adequate vacuum see 8.

Determine the volume of the specimens by measurement of length, width, and thickness to the nearest 0. Check the air pressure before and after the abrading media is run through the system. Provide a gap between the two funnels to allow for air to be introduced to the particle stream. Verify the sizing of the grit by astj user confirmation of the screen analysis or a certificate of conformance from the supplier. Report the results as a hole through the specimen. After the air pressure to the gun and the chamber pressure have been adjusted, plug the abrading media feed line by closing the opening of the lower funnel.

We need your help to adtm this website. Take care to avoid segregation in large containers of abrading media. Maintain the mm 8 in. Calculation and Report 9. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. Follow all requirements of the supplement. Normally, the free surface is the most appropriate test surface.

Fire specimens to the anticipated service temperature or a higher temperature, if specified, in accordance with Practice C Use one gauge as the primary gauge; all vacuum measurements are to be taken from that gauge.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.