CSA 6.8:2005 pdf download.American National Standard/CSA Standard For Pilot Gas Filters
This test shall be conducted at room temperature. A new sample of each style filter shall be subjected to this test.
a. A filter with both the inlet and outlet threaded for connection to iron pipe shall be subjected to the following test.
1. A length of properly threaded Schedule 40 iron pipe or a standard-weight pipe coupling, whose threads have not been lubricated shall be threaded to the inlet of the filter with the turning effort specified in Table II, Torques for Turning Effort Test, by gripping the wrench flats on the filter or any suitable area of the filter if wrench flats are not provided. If wrench flats are provided on both ends of the filter, the inlet end wrench flats shall be used. If wrench flats are not provided, a special tool provided by the filter manufacturer may be used for this test. The turning effort shall be applied for 15 minutes and then released.
2. The procedure outlined in “al” shall be repeated for the outlet of the filter using the outlet wrench flats, if provided.
3. The filter, with the inlet and outlet pipes in place, shall comply with 2.3, Leakage. The inlet and outlet pipes shall then be removed and the filter examined for deformation and breakage.
b. A filter with both the inlet and outlet designed for connection to tubing shall be subjected to the following test.
1. A length of the proper size of aluminum tubing with the end squared and deburred shall be assembled to the inlet end of the filter with the turning effort specified in Table II using the attachment means specified by the manufacturer.
When applying the turning effort, the filter shall be rigidly supported by the wrench flats or any suitable area on the filter if wrench flats are not provided. If wrench flats are provided on both ends of the filter, the inlet end wrench flats shall be used. The turning effort shall be applied to the tubing fitting for 15 minutes and then released.
2. The procedure outlined in 2.2.1-b1 shall be repeated for the outlet of the filter using the outlet wrench flats, if provided.
3. The filter with the inlet and outlet tubing in place, shall comply with 2.3. The inlet and outlet tubing shall then be removed and the filter examined for deformation and breakage.CSA 6.8 pdf download.