scope:

The scope of this publication is to provide a consolidated listing of fire potential, toxicity, state of gas, and corrosiveness (FTSC) numerical codes established by the Compressed Gas Association (CGA). The FTSC codes are established for pure product. The FTSC numerical code shall be determined using Table 1. The process for submission, creation, and approval of new FTSC codes and the review of existing FTSC codes are included in this publication.

Purpose

The FTSC code is a convenient tool to identify the properties of a specific gas characterizing the four previously mentioned categories. The purpose of this publication is to establish a consolidated listing of FTSC codes, which can be used and referenced by other publications. The FTSC codes were formerly found in CGA S-1.1, Pressure Relief Device Standards-Part 1-Cylinders for Compressed Gases; CGA S-7, Standard Method for Selecting Pressure Relief Devices for Compressed Gas Mixtures in Cylinders; and CGA V-7, Standard Method of Determining Cylinder Valve Outlet Connections for Industrial Gas Mixtures [1, 2, 3].¹ This will help to avoid duplication and inconsistency in information used in other publications referencing FTSC codes.

¹ References are shown by bracketed numbers are listed in order of appearance in the reference section.