1. Overview
2. Normative references
3. Definitions
4. General requirements
5. Testing requirements
6. Marking requirements
7. Documentation
Annex A (informative) - Bibliography
Annex B (normative) - Requirements for Class I, II,
and III Division 2 hazardous (classified) areas
Annex C (normative) - Skin effect trace heating system
requirements for Class I, Zone 1; Class I, Zone 2;
Zone 1; Zone 2; Zone 21; and Zone 22
Annex D (normative) - Skin effect trace heater design
verification methodology