AWWA Comment Period on ANSI/AWWA B304 - Liquid Oxygen for Ozone Generation for Water, Wastewater, and Reclaimed Water Systems
August 31, 2018

AWWA solicits public comments on all proposed new AWWA Standards, and on all proposed revisions, reaffirmations, or withdrawals of existing AWWA Standards. The referenced standards project is being considered for approval and the publication of this notice begins the 45-day public comment period for AWWA and ANSI. An electronic public review copy of the proposed standard can be obtained for review during the comment period by emailing Comments must be submitted in writing to the AWWA contact listed below no later than the last day of the comment period specified herein. Such comments shall be specific to the section(s) of the standard under review and include sufficient detail so as to enable the reader to understand the commenter's position, concerns and suggested alternative language, if appropriate.

AWWA Comment Period closed on 10/15/18.

Send comments to:
Liz Ralph
303.347.6177 phone
303.795.7603 fax

The review copy will be edited for publication and may also be revised as appropriate based on any comments received during the public comment period. Therefore, this copy is not suitable for continued utilization and is intended only for comment purposes.

Final publication of the standard may take several months. When it is available, a notice will be published in the official notice section of Journal - American Water Works Association. The standard becomes an effective AWWA standard on the first day of the month following such publication in Journal - American Water Works Association.

This standard describes liquid oxygen (LOX) for use in the treatment of potable water, wastewater, or reclaimed water.

Major revisions made to the standard in this edition include the following:
1. The codes and standards referenced in the Foreword, Sec. II.A Storage and Handling Precautions have been updated.
2. In the Foreword, Sec. II.B Gas Pretreatment, the 2nd paragraph, a typical dew point temperature was added for dried compressed air.
3. The reference to oxygen content in the standard was revised to reflect a percent by volume rather than weight to be consistent with the industry standard (Sec. 4.3 and Sec. 5.3.3).
4. In Sec. 5.2 Sampling, a sentence was added to address personnel protective equipment.
5. Sec. Liquid meter tickets, was revised to clarify requirements for meter readings.