The AMCA (Air Movement and Control Association International) has put forth a standard for construction equipment (SRC, Spark Resistant Construction) used for potentially explosive airstreams.
Certain standards and classifications are set by the ISO (International Organization of Standardization) when using equipment in a marine environment, and that includes hoist and crane equipment.
The NSF (National Science Foundation) has set certain standards that must be adhered to for all food processing equipment. The NSF food equipment standards include requirements for material safety, design, construction, and product performance.
Explosion classified areas are defined by the following classes, divisions, and groups, by the National Electric Code. Many hoist manufacturers can furnish equipment to comply with the various classifications.