The following terms are used in this document. The definitions below are used in the scope of this document, but local regulatory definitions supersede if there is a conflict.
ANSI Z358.1: American National Standards Institute, American National Standard for Emergency Eyewash and Shower Equipment.
Annual Inspection: The annual process of making sure that all plumbed emergency washing facilities are inspected once a year to make sure they function correctly.
Combination unit: A device that consists of an emergency shower and eyewash/face station.
Corrosive: A chemical that causes visible destruction of, or irreversible alterations in, living tissue by chemical action at the site of contact. For example, a chemical is considered to be corrosive if, when tested on the intact skin of albino rabbits by the method described by the U.S. Department of Transportation in Appendix A to 49 CFR part 173, it irreversibly destroys or changes the structure of the issue at the site of contact.
Drench Hose: A supplemental device consisting of a flexible hose connected to a flushing fluid supply and used to provide fluid irrigation and flush face and body areas. Drench hoses are not a replacement or an eyewash or emergency shower.
Emergency shower: A device that delivers a sufficient volume of fluid and cascades over the body. Eye/face wash: a device that flushes fluid to both the face and the eyes.
Eyewash: A device that flushes fluid to the eyes.
Flammable: A chemical that catches fire easily. Most flammable chemicals vaporize easily. Flammability is often measured with “flash point.” Lower flash point indicates higher flammability.
Flammable Liquids: Any liquid having a flashpoint at or below 199.4°F. Flammable liquids are divided into four categories as follows:
Category 1 includes liquids having flashpoints below 73.4°F and having a boiling point at or below 95°F.
Category 2 includes liquids having flashpoints below 73.4°F and having a boiling point above 95°F.
Category 3 includes liquids having flashpoints at or above 73.4°F and at or below 140°F. When a Category 3 liquid with a flashpoint at or above 100°F is heated for use to within 30°F of its flashpoint, it must be handled in accordance with the requirements for a Category 3 liquid with a flashpoint below 100°F.
Category 4 includes liquids having flashpoints above 140°F and at or below 199.4°F. When a Category 4 flammable liquid is heated for use to within 30°F of its flashpoint, it must be handled in accordance with the requirements for a Category 3 liquid with a flashpoint at or above 100°F. When liquid with a flashpoint greater than 199.4°F is heated for use to within 30°F of its flashpoint, it must be handled in accordance with the requirements for a Category 4 flammable liquid.
Flushing fluid: Consists of clean/potable water.
Hazardous Chemical: Any material that has a documented or suspected risk of causing injury or illness when employees are exposed to it. Regulatory agencies typically publish a comprehensive definition of this term.
Hazardous material: Substance or compound that can produce adverse health effects in human beings. OSHA’s definition of hazard chemical carcinogens, corrosives, irritants, sensitizers, toxic and highly toxic agents, neurotoxins, reproductive toxins, hepatotoxins, nephrotoxins, agents that act on the hematopoietic system and agents that can damage the lungs, skin, eyes, or mucous membranes.
Personal Protective Equipment (PPE): Specialized clothing or equipment worn by an employee for protection against workplace hazards. Examples include safety glasses or goggles, respirators, hard hats, hearing protection, gloves, impermeable or fire-retardant clothing, and protective boots.
Safety Data Sheets (SDS): A standard formatted information sheet prepared by a chemical or material manufacturer, describing the potential hazards, physical properties, and procedures for safe use.
Tepid: Flushing: fluid at a suitable range of 60-100⁰ F (16-38⁰ C).
Valve actuator: A device connected to the valve to facilitate activation.
Weekly Activation: The process of making sure plumbed emergency eyewashes and hand-held drench hoses are activated weekly to check the proper functioning of the valves, hardware, and availability of water.