CSA 12.3:2014 pdf download.Fuel system components for compressed natural gas powered vehicles
1.10 CSA 12.3 contains SI (metric) units corresponding to the yard/pound quantities, the purpose being to allow the Standard to be used in SI (metric) units. IEEE/ASTM SI I0, American National Standard for Metric Practice, or ISO 80000-1:2009 Quantities and units - Part 1: General, is used as a guide in making metric conversion from yard/pound quantities.) If a value for a measurement and a corresponding value in other units are stated, the first stated value is to be regarded as the requirement. The given corresponding value may be approximate. If a value for a measurement and a corresponding value in other units, are both specified as a quoted marking requirement, the first stated unit, or both are to be provided.
4.2.3 Materials used for electrical construction shall be suitable for their particular application. When determining the acceptability of an electrical insulating material, consideration shall be given to its mechanical strength, dielectric strength, heat-resistant properties, the degree to which it is enclosed or protected, and any other features influencing fire and accident hazards.
4.3.1 Manufacturers of components for compressed natural gas powered vehicles shall provide literature for their components. This literature shall provide information to guide the installer in making a proper installation. The literature shall also require that intermediate assemblers transmit the component warnings and literature to the installer. The manufacturer shall provide duplicate literature in response to requests, including service parts. The literature shall be published in the predominant language(s) of the destination country. Critical parts of the component literature shall be worded in the imperative.
Component literature shall include at least the following:
a) service pressure and specification for CNG use as indicated by“P24",“P30", or“P36" for components upstream of the first stage of pressure reduction, or working pressure for components downstream of the first stage of pressure reduction;
b) gasses for which the component is intended to be used;
c) operating temperature limits;
d) mounting limitations with regards to corrosion resistance, including whether the component is suitable for underbody, exterior, or interior locations;
e) flow ratings of connections if required for safety, such as flow requirements into and out of relief valves;
f) requirements for warning labels that might be required as part of the installation;
g) parts that require periodic replacement shall be identified;
h) manufacturer's or representative's contact information; and
i) other information as required by specific component sections.CSA 12.3 pdf download.