ANSI ASSP Z390.1:2017 pdf download.Accepted Practices for Hydrogen Sulfide Safety Training Programs.
ANSI ASSP Z390.1 sets forth accepted practices for hydrogen sulfide (H2S) safety training and instruction of affected personnel to include, but not be limited to, the following:
• minimum informational content of the course
• recommended exercises and drills
• properties and characteristics of H2S
• sources of H2S and areas of potential exposure
• typical site-specific safe work practices associated with H2S operations
• detection methods for H2S
• engineering/mitigation controls
• properties, characteristics and safe work practices of sulfur dioxide (SO2)
• selection, use and care of personal protective equipment appropriate for atmospheres containing H2S concentrations above the applicable occupational exposure limit
• rescue techniques and first aid procedures for victims of H2S exposure
• H2S Safety Instructor qualifications
1.2 Purpose
The purpose of ANSI ASSP Z390.1 is to establish minimum requirements for H25 safety training programs that will enhance safety in occupational settings where H2S is present, or is recognized as being potentially present, above the applicable occupational exposure limit.
1.3 Application
ANSI ASSP Z390.1 is recommended for voluntary application in occupational settings where personnel have the potential to be exposed to concentrations of H2S in excess of the applicable occupational exposure limit. The applicable occupational exposure limit is determined by the employer or facility referencing consensus standards, regulations and health safety and environmental (HSE) professionals.
2. Definitions
2.1 Acute Exposure
Exposures to high concentrations over a short period of time.
2.2 Chronic Exposure
Exposures to low concentrations over a long period of time.
2.3 Contingency Plan
A site-specific written document that provides an organized plan for alerting and protecting workers and the public within an area of exposure following the accidental release of a potentially hazardous atmospheric concentration of H2S.
2.4 Designated Rescuer
An individual or individuals who are responsible for recovery and providing resuscitation and first aid to H2S victims
2.5 Emergency Action Plan
A part of a broader and more comprehensive contingency plan that outlines the immediate steps and actions that would be taken in the event of a major release of toxic material. The emergency procedures plan includes, but is not limited to, such items as:
• the responsibilities of personnel;
• the immediate action plan, telephone numbers and communication methods;
• the location of nearby residences, businesses, schools, churches, medical facilities and emergency response personnel, safety equipment and supplies available; and
• evacuation routes.
2.6 Flaring
The controlled combustion of the flammable gases and vapors discharged from vent piping systems.
2.7 Immediately Dangerous to Life and Health (IDLH)
Any atmosphere that poses an immediate hazard to life, impairs ability for self-rescue, or poses immediate irreversible debilitating effects on health.
2.8 Instructor
An individual who has successfully completed a course in H2S instructor training from an institution or organization offering such courses or possess significant past experience in instructing in this field. (See Section 5 Instructor Qualification and Proficiency.)ANSI ASSP Z390.1 pdf download.