Summary of Modifications/Changes
in this Update
This Summary of Changes is for information only.
It is not a part of the referenced document, and should not be used for project documentation.
U.S. Department of Veterans Affairs♦Office of Construction & Facilities Management

DATE OF THIS VERSION (new)May 1, 2023
TITLE OF DOCUMENT (new title if applicable)
22 63 00 Gas Systems for Laboratory and Healthcare Facilities
DATE OF VERSION BEING SUPERSEDED (old):
September 1, 2015
DESCRIPTION OF DOCUMENT (previous title, number, other identifying data):
22 63 00 Gas Systems for Laboratory and Healthcare Facilities
SUMMARY OF CHANGES IN THIS VERSION:
1.

1.4 SUBMITTALS
a. Introduced Medical Gas Partnering and Quality Control Plani. Identifies all stakeholders early in the project to partner together anddevelop a communication strategy that is productive and effective.
ii. Requires the 3 Phases of Quality Controliii. Preparatory Phase – review contract requirements and necessarycommunication before execution of each portion of work.
iv. Initial Phase – Ensure the employees completing the work are qualifiedand executing as expected
v. Follow Up Phase – Check in on the work repeatedly to ensure continued
compliancevi. Provides installer certifications for approval,
vii. Provides Verifiers Credentials for approvalviii. Provides Certifiers Credentials for approvalix. Includes all Quality control processes, procedures and daily
documentation to be used during installation.

x. Outlines a process that clearly documents and demonstrates a nitrogen
atmosphere is obtained and maintained within the piping throughout theinstallation process until final certification and activation.
xi. Outlines post installation/precertification blowdown procedures toensure a sufficient volume and velocity of gas is expelled to carry any
particulate through the entire system during the blowdown/white rag
test. This test shall be witnessed by the COR and other stakeholders.
b. Submit one physical sample of a typical brazed joint for each approved installer
to be compared against their installed work as a Quality assurance measure.
c. Documentation of conditions while work is performed
i. Daily reports, photos, uncapped piping, nitrogen pressures, Oxygen
concentrations and all preapproved Pipefitter's names and all locations
brazed by that individual each workday etc.
ii. All copies of verification reports documenting compliance with NFPA99
during construction.
iii. Delivery tickets for nitrogen gas deliveries.
iv. Installation equipment calibration certificates.

Summary of Modifications/Changes
in this Update
This Summary of Changes is for information only.
It is not a part of the referenced document, and should not be used for project documentation.
U.S. Department of Veterans Affairs♦

Office of Construction & Facilities Management

DATE OF THIS VERSION (new)September 1, 2015
TITLE OF DOCUMENT (new title if applicable):Gas Systems for Laboratory and Healthcare Facilities, 22 63 00
DATE OF VERSION BEING SUPERSEDED (old):
December 1, 2010
DESCRIPTION OF DOCUMENT (previous title, number, other identifying data):
Gas Systems for Laboratory and Healthcare Facilities, 22 63 00
SUMMARY OF CHANGES IN THIS VERSION:
1.
2.
3.
4.
5.
6.
7.

1.2 – Updated specification sections with related work.
1.3 – Revised applicable publications to their latest versions.
1.4.G - Added submittals for training plans and instructor qualifications.
1.5.I – Added Bio-Based Materials.
2.2.A.1 - Verified requirements for ASTM B43.
2.8 D Table - Revised letter colors for Medical Air identification cover plates.
2.10 A - Revised closed circuit alarm signal monitoring to list BAS only.