UL 2586A-2019 pdf free download

UL 2586A-2019 pdf free download.Hose Nozzle Valves for Gasoline and Gasoline/ Ethanol Blends with Nominal Ethanol Concentrations up to 85 Percent (EO — E85).
12.2.1. These closures shall be fabricated of materials as specified in 12.2.4. The closures shall be provided with a 1/4 inch NPT opening for connection to the test apparatus. All closures shall be installed by the manufacturer and provided with a torque rating. There will be no other adjustment to connections for the duration of the test.
12.2A Material combinations at the product and closure interface will be as specified by the manufacturer. All closures for hose nozzle valves rated for gasoline/ethanol blends with nominal ethanol concentrations up to 25 percent shall be fabricated of suitable materials. All closures for hose nozzle valves rated for gasoline/ethanol blends with nominal ethanol concentrations above 25 percent shall be fabricated of the materials representing permitted material to which the device may be connected; such as aluminum closures representing aluminum tubing. Table 5.1 shall be used to determine the worst case material interactions based on the materials specified by the manufacturer. Materials specified by the manufacturer but not included in Table 5.1 shall be tested as necessary to represent worst case conditions.
12.2.5 Material combinations at the product and closure interface will be a specified by the manufacturer. All closures for devices rated for gasoline/ethanol blends with nominal ethanol concentrations up to 25 or 40 percent shall be fabricated of suitable materials. All closures for devices rated for gasoline/ethanol blends with nominal ethanol concentrations above 25 percent shall be fabricated of the materials representing permitted material to which the device may be connected; such as aluminum closures representing an aluminum fitting or tube. Table 5.1 shall be used to determine the worst case metal interactions. Materials that are specified by the manufacturer, but are not included in Table 5.1 shall be tested as necessary to represent worst case conditions.
12.3 Method
12.3.1 The sample is to be exposed to the applicable test fluid in accordance with 12.1.1. The test fluids shall be prepared using the instructions in Supplement SA.
12.3.2 A quick connect device is connected to the 1/4 inch NPT connection at the inlet, and is used to till the samples with the applicable test fluids. A source of pressure may be used to assist in filling or draining the samples, however, the pressure shall not exceed the rated pressure of the valve under test. Once the samples are filled to exclude all air, they are closed off and sealed. The samples are then placed in the test chamber.
12.3.3 The chamber temperature is increased to 60 ±2°C (140 ±4°F). When the chamber reaches this temperature, the exposure period begins. The samples are exposed to the applicable test fluid at 60 ±2°C for approximately 168 hours. At the end of this duration, the exposure period is halted and the chamber is allowed to cool. The samples are subjected to a 50 psi (347 kPa) pressure for one minute. The fluid is then drained from the samples and observed in accordance with 12.4.2. After this observation, the fluid is discarded. The samples are then immediately refilled with new test fluid and the chamber temperature is allowed to increase to 60 ±2°C again. The total duration of the test shall equal 1,008 hours of exposure at 60 ±2CC.UL 2586A-2019 pdf free download.