Section 8 of the American Standard Code for Pressure Piping, designated as ASA B31.1.8-1955 (Second Edition), of the American Standards Association for Gas Transmission and Distribution Piping Systems, which shall hereafter be designated as ASA B31.1.8-19552 being of a general and permanent character printed in book form, as shown by three (3) copies thereof now on file in the office of the City Clerk, is hereby ratified and adopted (except as altered or amended by Rules 3 and 4, Section 11, Idaho Public Utilities Order No. 98, as shown in Section 4-11-3 hereof) as part of this Chapter regulating such construction and maintenance of such gas line and system in the City.