The NR-12 (Regulatory Standard No. 12) is a standard from the Brazilian Ministry of Labor that establishes minimum safety requirements for the operation, maintenance, manufacturing, and importation of machinery and equipment.
Its objective is to ensure the physical integrity and health of workers, preventing accidents, eliminating risks, and standardizing technical criteria related to protections, signage, controls, maintenance, and safety devices.
Every machine or test bench, automated or manual, must comply with NR-12 to ensure a safe and legal work environment.
🧩 What does NR-12 require?
| NR-12 Requirement | Technical Application |
|---|---|
| Fixed and movable protections | Physical barriers against moving parts, crushing zones |
| Emergency stop devices | Accessible and redundant buttons for immediate shutdown |
| Safe control system | PLCs and safety relays that prevent unauthorized activation |
| Visual and acoustic signals | Alerts for imminent risk, failure, or active test cycle |
| Machine manual and design | Technical documentation with diagrams, validation, and checklists |
| Training and procedures | Operator instruction and use and maintenance manuals |
⚙️ Why comply with NR-12?
- Prevents work accidents and fiscal interdictions
- Ensures legal compliance with the Ministry of Labor and INSS
- Improves the company’s image with clients and suppliers
- Facilitates certification of products and industrial processes
- Strengthens the culture of safety and prevention in the technical environment
🔧 How AJOLLY Testing applies NR-12 in its solutions
AJOLLY Testing designs and builds test benches, jigs, and automation systems in accordance with NR-12 and other complementary industrial safety standards.
🛠️ Engineering with integrated safety
- Projects with risk analysis and mitigation according to ISO 12100
- Implementation of safety relays, light curtains, push buttons, and interlock switches
- Emergency simulations and redundancy in electrical and pneumatic controls
📁 Documentation and traceability
- Delivery of electrical diagrams, technical manuals, checklists, and ARTs
- Inspection checklists, protection validation, and operation instruction
- Support for internal audits and labor inspections
🧠 Training and qualification
- Technical training for operators, maintenance, and safety
- Standardized procedures (POP, SOP) integrated into the quality system
- Compliance certification for AJOLLY Testing equipment
With AJOLLY Testing, NR-12 ceases to be a bureaucratic requirement — and becomes part of the DNA of your technical, safe, productive, and legally compliant project.