Calibration gas is crucial for maintaining the accuracy of gas detection instruments across various industries. Here are the key regulatory requirements:

1. Occupational Safety and Health Administration (OSHA)

• General Industry: OSHA requires regular calibration of gas detectors using certified calibration gases to ensure workplace safety.
• Mining: The Mine Safety and Health Administration (MSHA) mandates the use of accurate calibration gases for gas detection equipment in mines.

2. Environmental Protection Agency (EPA)

• Air Quality Monitoring: Calibration gases must meet precise concentration standards for accurate environmental data.
• Emission Testing: Calibration gases must comply with the EPA’s Protocol Gas Verification Program (PGVP) for traceability and accuracy.

3. International Organization for Standardization (ISO)

• ISO 17025: Laboratories must use traceable calibration gases to meet ISO 17025 standards for testing and calibration.
• ISO 6145 and ISO 6142: These standards govern the preparation and certification of calibration gas mixtures.

4. Industry-Specific Standards

• Oil and Gas: Calibration gases must meet standards set by organizations like the American Petroleum Institute (API) for hazardous environments.
• Pharmaceutical: Calibration gases must comply with Good Manufacturing Practices (GMP) to ensure reliable gas monitoring in manufacturing.

5. Traceability and Certification

• Calibration gases must be traceable to standards like those from the National Institute of Standards and Technology (NIST) and come with certification detailing concentration, purity, and traceability.

6. Record-Keeping

• Detailed records of calibration activities, including the gases used and procedures followed, are required for regulatory compliance and audits.