Anhydrous Ammonia Storage and Handling

You are protected by regulations requiring employers to ensure that all anhydrous ammonia systems are designed and maintained to prevent leaks and catastrophic failures. This covers the entire lifecycle of storage, from the construction of pressure vessels to the installation of piping and safety relief devices.

Under 1910.111(b), your employer must use equipment certified by nationally recognized testing laboratories. The rule dictates specific requirements for container markings, the use of ammonia-resistant materials for hoses and fittings, and the mandatory installation of safety relief valves to manage internal pressure.

This standard applies to most general industry workplaces that store or handle anhydrous ammonia, including agricultural supply centers, refrigeration plants, and chemical processing facilities. It does not apply to ammonia manufacturing plants or refrigeration systems where ammonia is used solely as a refrigerant.

OSHA frequently cites employers for failing to maintain required safety equipment, such as non-functional safety relief valves or the absence of mandatory emergency water supplies. Violations often involve the use of improper materials for piping and hoses, such as brass or copper, which are susceptible to chemical attack by ammonia.

In practice, these violations often look like a facility failing to provide you with accessible gas masks or emergency showers near storage tanks. You may also be exposed to hazards when management allows the use of damaged or uncertified containers, or when they fail to ensure an attendant is present during the high-risk process of transferring ammonia between containers.

Violations of 1910.111 are often classified as serious because of the high risk of chemical burns, respiratory damage, or death from ammonia exposure. OSHA inspections are frequently triggered by your complaints regarding chemical odors or reports of workplace accidents. Employers face significant financial penalties for each violation, which can increase substantially if the employer is found to have willfully ignored established safety standards. An attorney can help you understand how these violations impact your case.

You have the right to a workplace free from recognized chemical hazards. If you believe your employer is violating safety standards, you can file an anonymous complaint with OSHA. You are protected from retaliation for reporting safety concerns under Section 11(c) of the OSH Act, which prohibits your employer from firing or discriminating against you for exercising your rights.

If you are injured by an ammonia leak, document the conditions immediately, including any missing safety equipment or faulty valves. Seek medical attention right away, as ammonia exposure can cause delayed respiratory distress. An attorney can help you understand how a potential OSHA violation can strengthen your Workers' Compensation claim and ensure you receive the benefits you are owed.