ISA 12.22.01 : 2002

General Notes
Preface (ISA)
Foreword (UL)
National Differences
Foreword (ISA)
1 Scope
2 References
3 Definitions
4 Apparatus grouping and temperature classification
5 Flameproof joints
6 Cemented joints
7 Operating rods
8 Supplementary requirements for shafts and bearings
9 Light-transmitting parts
10 Breathing and draining devices which form part of
   a flameproof enclosure
11 Fasteners, associated holes and closing devices
12 Materials and mechanical strength of enclosures; materials
   inside the enclosures
13 Entries for flameproof enclosures
14 Verification and tests
15 Type tests
16 Routine tests
18 Lampholders and Lampcaps
19 Non-metallic enclosures and non-metallic parts of enclosures
Annex A (normative) - Additional requirements for
                        crimped ribbon elements of breathing
                        and draining devices
Annex B (normative) - Additional requirements for elements,
                        with non-measurable paths, of breathing
                        and draining devices
Annex D (informative) - United States major deviations
Annex E (informative) - Editorial differences between ANSI/UL
                        60079-1 and ANSI/ISA-12.22.01-2002 (IEC
                        60079-1 Mod)
Annex F (informative) - National differences types noted in
                        ANSI/UL 60079-1

Provides the specific requirements for the construction and testing of electrical apparatus with type of protection flameproof enclosure "d", intended for use in class I, Zone 1 explosive gas atmospheres.