The following changes in requirements to the Standard for Overfilling Prevention Devices, UL 2227, are being proposed:
1. Clarify test methods of the Seat Leakage Test
2. Revise the Operation Test to reflect current test practices
3. Clarify the Positive Shutoff Test
4. Clarify the Endurance Test
5. Clarify the test methods and samples used in the Vibration Test