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CSA ANSI Z21.35-2005 (R2020)/CSA 6.8-2005 (R2020)
Pilot Gas Filters
Scope 1.1.1 This Standard applies to newly produced pilot gas filters, hereinafter referred to as filters (See Part IV, Definitions), constructed entirely of new, unused parts and materials. Compliance of a filter with this standard does not imply that the filter is acceptable for use on gas appliances without supplemental tests with the filter applied to the particular appliance design. 1.1.2 This Standard applies to filters having maximum operating gas pressure ratings of 1/2 psi. 1.1.3 Filters complying with the provisions of this standard shall be considered as having an operating temperature range of 32°F to 125°F (0°C to 51.5°C). They may be capable of operation at a higher temperature, lower temperature, or both, when so specified by the manufacturer. 1.1.4 If a value for measurement as given in this standard is followed by an equivalent value in other units, the first stated value is to be regarded as the specification. 1.1.5 All references to psi throughout this standard are to be considered gage pressures unless otherwise specified. 1.1.6 Exhibit A contains provisions that are unique to Canada. 1.1.7 Exhibit B contains a list of standards specifically referenced in this standard, and sources from which they may be obtained.
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