scope:

General

This Standard covers Polyethylene Sleeved‐Corrugated Stainless‐Steel Tubing (PE‐CSST) intended for use in fuel gas piping systems and specifies requirements for materials, physical characteristics, performance testing, and markings.

The Polyethylene Sleeved‐Corrugated Stainless‐Steel tubing (PE‐CSST) covered by this standard are for use

(a) when an encasement or double containment of the fuel gas piping system is desired; and,

(b) in compliance with the Plumbing Code for applications above ground, buried and underground beneath buildings for connections of meters, appliances, and other equipment.

Alternative Materials

The requirements of this standard are not intended to prevent the use of any alternate material or method of construction, provided any such alternate meets the intent and requirements of this standard.

Terminology

In this Standard,

(a) "shall" is used to express a requirement, i.e., a provision that the user is obliged to satisfy to comply with the Standard;

(b) "should" is used to express a recommendation, but not a requirement;

(c) "may" is used to express an option or something permissible within the scope of the Standard; and

(d) "can" is used to express a possibility or a capability.

Notes accompanying sections of the Standard do not specify requirements or alternative requirements; their purpose is to separate explanatory or informative material from the text. Notes to tables and figures are considered part of the table or figure and can be written as requirements.

Units of Measurement

SI units are the primary units of record in global commerce. In this Standard, the inch/pound units are shown in parentheses. The values stated in each measurement system are equivalent in application, but each unit system is to be used independently. All references to gallons are to U.S. gallons.

Amendments

Proposals for amendments to this Standard will be processed in accordance with the standardswriting procedures of IAPMO.

Patents

The user's attention is called to the possibility that compliance with this Standard might require use of an invention covered by patent rights. By publication of this Standard, no position is taken with respect to the validity of any such claim(s) or of any patent rights in connection therewith. If a patent holder has filed a statement of willingness to grant a license under these rights on reasonable and nondiscriminatory terms and conditions to applicants desiring to obtain such a license, then details can be obtained from IAPMO.