Whether you need to post a hazard sign near brake clean storage depends on several factors. Here's a breakdown:

• Hazard Communication Program: You're required to have a written hazard communication program that includes a list of hazardous chemicals present in the workplace . This program should outline how you inform employees about the hazards of chemicals, including proper storage procedures .
• Labeling: Ensure all containers of hazardous chemicals, including brake cleaner, are labeled with the appropriate information . This includes the product identifier, signal word, hazard statements, pictograms, precautionary statements, and the name/contact information of the manufacturer or responsible party .
• Workplace Labeling: Each container of hazardous chemicals in the workplace must be labeled, tagged, or marked with the information required on shipped containers, or with a product identifier and words, pictures, or symbols that provide general information regarding the hazards of the chemicals .
• Alternative Warning Methods: You can use signs, placards, process sheets, batch tickets, operating procedures, or other written materials instead of affixing labels to individual stationary process containers, as long as the alternative method identifies the containers and conveys the required hazard information .
• Foreseeable Emergencies: Your hazard communication program must address potential occurrences such as equipment failure or rupture of containers that could result in an uncontrolled release of a hazardous chemical into the workplace .
• Warning Signs: Where extreme occupational health hazards are known to exist in the workplace, the employer shall provide warning signs or other equally effective means of calling attention to such hazards at the location where the hazards exist .

Consider these points when determining if a hazard sign is necessary:

• Employee Exposure: Determine if employees are potentially exposed to brake cleaner under normal operating conditions or in foreseeable emergencies .
• Specific Hazards: Brake cleaner often contains flammable and toxic chemicals. Evaluate the specific hazards based on the Safety Data Sheet (SDS) 1, 2.
• Storage Conditions: Assess the storage area. Is it properly ventilated? Are flammable liquids stored according to regulations? 8, 13

If brake cleaner is stored in a way that presents significant fire, health, or reactivity hazards, a warning sign is likely necessary. The sign should clearly communicate the specific hazards and any necessary precautions. If the storage conditions are well-managed and employees are thoroughly trained, a sign might not be required, but proper labeling of containers is still essential .