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ISA TR12.2 - INTRINSICALLY SAFE SYSTEM ASSESSMENT USING THE ENTITY CONCEPT Organization: ISA
Date: 1995-01-02
Description: Introduction When electrical equipment is used in locations where fire or explosion hazards may exist due to flammable gases or vapors, flammable liquids, combustible dust, or ignitible fibers or flyings, the National Electrical Code (NEC)®, NFPA 70, requires special precautions to be taken in equipment construction and installation to ensure safe performance.
NPFC - MIL-S-27624 - SWITCH, TOGGLE, EXPLOSION-PROOF Organization: NPFC
Date: 1974-03-18
Description: The explosion-proof toggle switch is intended for use in areas where flammable gases or vapors exist in quantities sufficient to render the atmosphere explosive or ignitable.
ISA TR12.06.01 - ELECTRICAL EQUIPMENT IN A CLASS I, DIVISION 2/ZONE 2 HAZARDOUS LOCATION Organization: ISA
Date: 1999-01-01
Description: Introduction When electrical equipment is used in locations in which fire or explosion hazards may exist due to flammable gases or vapors, flammable liquids, combustible dust, or ignitible fibers or flyings, the National Electrical Code (NEC), ANSI/NFPA 70 requires special precautions to be taken in equipment construction and installation to minimize risks of fire and explosions.
CGA/GAS - CGA SB-4 - HANDLING ACETYLENE CYLINDERS IN FIRES - SIXTH EDITION Organization: CGA/GAS
Date: 2012-01-01
Description: For additional information on the prevention of fires, refer to NFPA 51, NFPA 51A, NFPA 51B, ANSI Z49.1, and National Fire Code of Canada [1, 2, 3, 4, 5].
ISA RP12.13.02 - RECOMMENDED PRACTICE FOR THE INSTALLATION, OPERATION, AND MAINTENANCE OF COMBUSTIBLE GAS DETECTION INSTRUMENTS Organization: ISA
Date: 2003-01-01
Description: NOTE — When in classified areas, the apparatus should be so installed and used that it is not capable of itself igniting a flammable gas-air mixture. It should therefore comply with the requirements of ANSI/NFPA 70, Articles 500-505.
UL 147 - UL STANDARD FOR SAFETY HAND-HELD TORCHES FOR FUEL GASES - SEVENTH EDITION; REPRINT WITH REVISIONS THROUGH AND INCLUDING JULY 7, 2016 Organization: UL
Date: 2015-03-05
Description: These requirements also cover battery-operated torches covered in Supplement SA - Battery-Operated Ignited Torches in this Standard.
ISA TR12.12.04 - ELECTRICAL EQUIPMENT IN A CLASS I, DIVISION 2/ZONE 2 HAZARDOUS LOCATION Organization: ISA
Date: 2011-06-20
Description: Introduction When electrical equipment is used in locations in which fire or explosion hazards may exist due to flammable gases or vapours, flammable liquids, combustible dust, or ignitable fibers or flyings, the National Electrical Code® (NEC®), ANSI/NFPA 70 requires special precautions to be taken in equipment construction and installation to minimize risks of fire and explosions.
NFPA - NFPA 499 - RECOMMENDED PRACTICE FOR THE CLASSIFICATION OF COMBUSTIBLE DUSTS AND OF HAZARDOUS (CLASSIFIED) LOCATIONS FOR ELECTRICAL INSTALLATIONS IN CHEMICAL PROCESS AREAS - EFFECTIVE DATE: 06/02/2016 Organization: NFPA
Date: 2017-01-01
Description: This recommended practice provides guidance for classification of Class III or Group IIIA combustible fibers/flyings and of hazardous (classified) locations where these present a dust fire or dust explosion hazard when dispersed and ignited in air.
FMAPPROVAL 3640 - LAND MOBILE RADIOS FOR USE IN CLASS I, DIVISION 1 HAZARDOURS (CLASSIFIED) LOCATIONS Organization: FM
Date: 2013-06-01
Description: NOTE 2: This LMR equipment is intended for use in Class I, Division 1, locations where ignitable mixtures of flammable gases or vapors are present frequently during normal operations.
API RP 505 - RECOMMENDED PRACTICE FOR CLASSIFICATION OF LOCATIONS FOR ELECTRICAL INSTALLATIONS AT PETROLEUM FACILITIES CLASSIFIED AS CLASS I, ZONE 0, ZONE 1, AND ZONE 2 - FIRST EDITION Organization: API
Date: 1997-11-01
Description: Such extreme events are not predictable and require emergency measures at the time of occurrence; c. the suitability of locations for the placement of non-electrical equipment; d. classification for locations containing combustible dust, ignitible fibers, or flyings; e. installations underground in mines; f. areas for the processing and manufacture of explosives; and, g. areas where the presence of flammable mist may give rise to an unpredictable risk and that require special consideration.
UL 2788 - UL STANDARD FOR SAFETY INDUSTRIAL AND COMMERCIAL VIBRATORS - FIRST EDITION Organization: UL
Date: 2014-06-06
Description:   The requirements of this Standard intended to address the risk of fire do not apply to a product provided with a metal enclosure in which there are no openings in the enclosure through which molten metal, burning insulation, flaming particles, or other ignited material could fall onto flammable material, or through which a flame could be projected.
UL 2788 OUTLINE - OUTLINE OF INVESTIGATION FOR INDUSTRIAL AND COMMERCIAL VIBRATORS - ISSUE 1 Organization: UL
Date: 2012-02-22
Description: The requirements of this Outline intended to address the risk of fire do not apply to a product provided with a metal enclosure in which there are no openings in the enclosure through which molten metal, burning insulation, flaming particles, or other ignited material could fall onto flammable material, or through which a flame could be projected.
ISA 60079-29-2 - EXPLOSIVE ATMOSPHERES – PART 29-2: GAS DETECTORS – SELECTION, INSTALLATION, USE AND MAINTENANCE OF DETECTORS FOR FLAMMABLE GASES AND OXYGEN - 12.13.02 Organization: ISA
Date: 2012-06-27
Description: NOTE When in explosive gas atmosphereareas, the apparatus should be so installed and used such that it is not capable of itself igniting a combustible gas-air mixture. It should therefore comply with the requirements of the area in which the apparatus is to be installed per the National Electrical Code®, ANSI/NFPA 70, Articles 500-506.
ASTM D6668 - STANDARD TEST METHOD FOR DISCRIMINATION BETWEEN FLAMMABILITY RATINGS OF F = 0 AND F = 1 Organization: ASTM
Date: 2001-05-10
Description: This test method covers a means for the discrimination between solid and liquid materials which will not burn in air when exposed to a temperature of 1500 °F (815.5 °C) for a period of 5 min and those which will ignite and burn under the same conditions. This test method may be applied to any substance which is a solid or liquid at ambient temperature and pressure.
ASTM F1870 - STANDARD GUIDE FOR SELECTION OF FIRE TEST METHODS FOR THE ASSESSMENT OF UPHOLSTERED FURNISHINGS IN DETENTION AND CORRECTIONAL FACILITIES Organization: ASTM
Date: 2016-06-01
Description: The main fire-test-response characteristics investigated in this guide are: ignitability, ease of extinction, flame spread, heat release, smoke obscuration and toxic potency of smoke.
UL - 121201 BULLETIN - UL STANDARD FOR SAFETY NONINCENDIVE ELECTRICAL EQUIPMENT FOR USE IN CLASS I AND II, DIVISION 2 AND CLASS III, DIVISIONS 1 AND 2 HAZARDOUS (CLASSIFIED) LOCATIONS - COMMENTS DUE: JANUARY 9, 2017 Organization: UL
Date: 2016-12-09
Description: In addition, it is the intent of this document to establish uniformity in test methods for determining the suitability of the equipment and associated circuits and components as they relate to potential ignition of a specific flammable gas or vapour-in-air mixture, combustible dust, easily ignitible fibers, or flyings.  
UL 2221 - UL STANDARD FOR SAFETY TESTS OF FIRE RESISTIVE GREASE DUCT ENCLOSURE ASSEMBLIES - SECOND EDITION Organization: UL
Date: 2010-08-13
Description: These requirements cover the measurement of the transmission of heat through the grease duct assembly and the passage of heat and gases hot enough to ignite cotton waste. These requirements provide a relative measure of fire performance under these specified fire exposure conditions.
ISA TR12.24.01 - RECOMMENDED PRACTICE FOR CLASSIFICATION OF LOCATIONS FOR ELECTRICAL INSTALLATIONS CLASSIFIED AS CLASS I, ZONE 0, ZONE 1, OR ZONE 2 Organization: ISA
Date: 1998-01-01
Description: It is intended to be applied where there may be a risk of ignition due to the presence of flammable gas or vapor, mixed with air under normal atmospheric conditions (see Note 2), but it does not apply to: a) mines susceptible to firedamp; b) the processing and manufacture of explosives; c) areas where a risk may arise due to the presence of ignitable dusts or fibers; d) catastrophic failures which are beyond the concept of abnormality dealt with in this recommended practice (see Note 3); e) rooms used for medical purposes; f) areas where the presence of flammable mist may give rise to an unpredictable risk and which require special consideration (see Note 5).
ISA TR12.13.03 - GUIDE FOR COMBUSTIBLE GAS DETECTION AS A METHOD OF PROTECTION Organization: ISA
Date: 2009-12-14
Description: Combustible gas detection used for process safety management may also be used to provide protection from explosion or fires by minimizing the possibility of an accumulation of combustible gases reaching ignitable levels. Criteria are developed to establish combustible gas levels to initiate alarms, initiate increase in ventilation rates and to initiate shutdown of processes to shutoff the flow of combustible gas that has breached containment.
API RP 500 - RECOMMENDED PRACTICE FOR CLASSIFICATION OF LOCATIONS FOR ELECTRICAL INSTALLATIONS AT PETROLEUM FACILITIES CLASSIFIED AS CLASS I, DIVISION 1 AND DIVISION 2 - THIRD EDITION; ERRATA: JANUARY 2014 Organization: API
Date: 2012-12-01
Description: d) Classification of locations containing combustible dust, ignitable fibers, or flyings. Recommendations for determining the degree and extent of classified locations for specific examples of situations commonly encountered in petroleum facilities are given in Section 8 through Section 14.

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