UL 1978:4ED 2010-12-13
Current
The latest, up-to-date edition.
Grease Ducts
Hardcopy
13-12-2010
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Foreword
Introduction
1 Scope
2 General
3 Glossary
4 Installation instructions
Construction
5 Materials
6 Assembly
7 Joints
8 Support assembly
Performance
9 General
10 Test installations
11 Temperature measurement
12 Temperature test - 500 deg F (260 deg C) flue gases
13 Abnormal temperature test
14 Leakage test
15 Vertical support test
16 Strength tests
17 Fire and leakage test of grease duct access doors and
fittings
18 Pressure tests for fittings exposed to fire
extinguishing system pressure
19 Tensile strength, elongation, and change in volume
tests of gaskets and seals
Marking
20 General
Appendix A - Standards for components
Describes factory-built grease ducts, and grease duct assemblies that are intended to be installed at reduced clearances where 18 inch (457 mm) clearance is specified in the Standard for Ventilation Control and Fire Protection of Commercial Cooking Operations, NFPA 96, and the International Mechanical Code.
| DevelopmentNote |
NEW CHILD REV 3 2021 IS NOW ADDED.
|
| DocumentType |
Standard
|
| Pages |
0
|
| ProductNote |
NEW CHILD REV 3 2021 IS NOW ADDED.
|
| PublisherName |
Underwriters Laboratories
|
| Status |
Current
|
| NFPA 96:2024 | Standard for Ventilation Control and Fire Protection of Commercial Cooking Operations |
| ASHRAE 154 : 2016 | VENTILATION FOR COMMERCIAL COOKING OPERATIONS |
| UL 2221:2ED 2010-08-13 | Standard for Tests of Fire Resistive Grease Duct Enclosure Assemblies |
| NFPA 96 : 2017 | VENTILATION CONTROL AND FIRE PROTECTION OF COMMERCIAL COOKING OPERATIONS |
| ICC IMC Code and Commentary : 2015 | IMC® Code and Commentary |
| ICC 2012 INTERNATIONAL MECH. CODE : 2012 | INTERNATIONAL MECHANICAL CODE |
| UL 2221:2ED 2010-08-13 | Standard for Tests of Fire Resistive Grease Duct Enclosure Assemblies |
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