Recommended Practice for the Classification of Combustible Dusts and of Hazardous (Classified) Locations for Electrical Installations in Chemical Process Areas

Available format(s)

Hardcopy

Language(s)

English

Published date

01-01-2024

Publisher

National Fire Protection Association

This recommended practice provides information on the classification of combustible dusts and of hazardous (classi‐ fied) locations for electrical installations in chemical process areas and other areas where combustible dusts are produced or handled.

DocumentType	Standard
Pages	41
PublisherName	National Fire Protection Association
Status	Current
Supersedes	NFPA 499:2021

PIP ELCGL01:2023

Electrical Design Criteria

NFPA 654 : 2020	Standard for the Prevention of Fire and Dust Explosions from the Manufacturing, Processing, and Handling of Combustible Particulate Solids
NFPA 664:2020	Standard for the Prevention of Fires and Explosions in Wood Processing and Woodworking Facilities
NFPA 68:2023	Standard on Explosion Protection by Deflagration Venting
NFPA 36:2021	Standard for Solvent Extraction Plants
NFPA 61 : 2020	PREVENTION OF FIRES AND DUST EXPLOSIONS IN AGRICULTURAL AND FOOD PROCESSING FACILITIES
ASTM E 11 : 2017	Standard Specification for Woven Wire Test Sieve Cloth and Test Sieves
NFPA 70:2023	National Electrical Code (NEC) Softbound
ASTM E 2021 : 2015	Standard Test Method for Hot-Surface Ignition Temperature of Dust Layers
NFPA 69 : 2019	Standard on Explosion Prevention Systems
NFPA 655 : 2017	PREVENTION OF SULFUR FIRES AND EXPLOSIONS
ASTM E 1226 : 2019	Standard Test Method for Explosibility of Dust Clouds
ASTM D 3175 : 2020	Standard Test Method for Volatile Matter in the Analysis Sample of Coal and Coke
NFPA 484:2022	Standard for Combustible Metals