| AWWA COMMENT PERIOD FOR AWWA C220 – Stainless-Steel Pipe, 1/2 In. (13 mm) and Larger
AWWA Articles

AWWA COMMENT PERIOD FOR AWWA C220 – Stainless-Steel Pipe, 1/2 In. (13 mm) and Larger

AWWA COMMENT PERIOD FOR AWWA C220 – Stainless-Steel Pipe, 1/2 In. (13 mm) and Larger
May 2, 2023

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 ETS Support. 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 closes on July 17, 2023.

Send comments to:
Liz Ralph
303.347.6177 phone

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 Therefore, this copy is not suitable for continued utilization and is intended only for comment purposes.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 pertains to stainless-steel pipe or tube that is seamless, longitudinal-seam, or spiral-seam welded; 1/2 in. (13 mm) in nominal diameter and larger; and intended for the transmission and distribution of potable water, wastewater, and reclaimed water, and for use in other water-supply system facilities.

Major revisions made to the standard in this edition include the following:
1. Updated Sec. I.C. Acceptance in the Foreword with the latest Standards Council language reflecting the addition of reference to NSF/ANSI/CAN 372 and NSF/ANSI/CAN 600.
2. Sec. 1.1 Scope was updated to recognize the synonymous use of the terms pipe and tube within the standard.
3. In Sec. 2 References several ASTM and AWS standards were added as follows:
    ASTM A1119 for partially corrugated stainless-steel tubing for water service lines
    ASTM A249/A249M and ASTM A269/A269M for welded tubes
    AWS D10.4 for welding austenitic stainless pipe and tubing
    AWS D10.18 for welding duplex stainless steel pipe and tubing.
4. In Sec. 3 the definitions for coil splice, lap-joint, tube, and partially corrugated tube have been added.
5. In Sec. 3 the definition for passivation and pickling have been modified to be more explicit.
6. Updated Sec. 4.1 Permeation and Sec. 4.2 Materials with the latest Standards Council boilerplate language.
7. In Sec. 4, Table 1 a note was added to define the applications for types 201 and 201LN.
8. In Sec. 4.4.1 General Requirements reference to the added ASTM and AWS standards was made and a note on bright annealing was added.
9. In Sec. 4.4.2 Manufacture, fabrication, and handling, instructions have been updated regarding contamination (previously included in Sec.
10. Sec. Marking was updated and made a requirement of the standard.
11. In Sec. verification of complete joint penetration was revised and the requirement was revised from one to two macroetch tests.
12. In Sec. 4.6.5 Ends fitted with butt straps for field welding, a requirement for butt strap fit-up gap between faying surfaces was added.
13. A new Sec. 4.6.6 Ends for lap joints for field welding, was added.
14. A new Sec. was added for lap-joint pipe prepared for welding.
15. Sec. 4.8 Cleaning and Descaling was slightly revised and a note on bright annealing was added.
16. In Sec. 5.3.2 Defects, undercut and excessive spatter were added.
17. Sec. 6.1 Marking was revised to include adhesive labels.