Overview
SIST EN ISO 15011-2:2010 outlines a laboratory method for determining the emission rates of specific hazardous gases-carbon monoxide (CO), carbon dioxide (CO₂), nitrogen monoxide (NO), and nitrogen dioxide (NO₂)-released during arc welding, cutting, and gouging operations. Developed by the Slovenski inštitut za standardizacijo (SIST), this European and international standard is aligned with ISO 15011-2:2009 and is crucial for professionals involved in welding process safety and industrial hygiene. The standard leverages a hood technique designed for accurate sampling and analysis of gas emissions across various open arc welding and allied procedures.
Key Topics
- Occupational Health and Safety: Focuses on protecting workers from hazardous fume and gas exposure during welding, cutting, and gouging.
- Laboratory Sampling Method: Specifies use of a hood system to collect and measure emission rates under controlled conditions.
- Gas Selection: Targets measurement of CO, CO₂, NO, and NO₂, all of which pose significant health risks in welding environments.
- Process Versatility: Applicable to all open arc welding types, as well as cutting and gouging processes, both manual and automated.
- Measurement and Reporting: Emphasizes methodical calculation, stable sampling, and traceable calibration of instruments for reliable reporting.
- Parameter Evaluation: Allows evaluation of variables including welding wires, parameters, shielding gases, test piece composition, and surface conditions.
Applications
SIST EN ISO 15011-2:2010 is applied widely in:
- Industrial Hygiene: Provides essential data for occupational health professionals to assess potential exposure risks and develop control strategies.
- Process Comparison: Enables manufacturers and safety engineers to compare emission rates across different welding consumables, techniques, and scenarios, facilitating improvements in workplace safety practices.
- Research and Development: Supports R&D efforts in welding processes by highlighting the impact of different variables on gas emission rates.
- Regulatory Compliance: Assists companies in meeting European requirements for workplace air quality and safety, ensuring consistent implementation of control measures for hazardous welding fumes and gases.
- Workplace Evaluation: Used to predict relative differences in worker exposure under different process setups, supporting decisions on ventilation and PPE (personal protective equipment).
Related Standards
To ensure comprehensive health and safety management in welding and allied activities, consider these associated standards:
- ISO 15011-1: For determination of fume emission rate and fume composition.
- ISO 15011-3: For determination of ozone emission rate during arc welding.
- ISO 15011-4: For documentation and datasheets relating to welding fumes.
- ISO 15011-5: For identification of products generated by thermal degradation during welding/cutting of organic materials.
- ISO/TR 25901: Terminology for welding processes.
- ISO/IEC Guide 98-3: Guidance on expression of uncertainty in measurement.
- SIST EN ISO 15011 Series: Covers additional methods for sampling fumes and gases in welding and related processes.
Practical Value
Implementing SIST EN ISO 15011-2:2010 supports:
- Enhanced Worker Safety: By quantifying and managing the risks associated with exposure to hazardous welding gases.
- Process Optimization: Through detailed analysis of how changes in materials, equipment, or methods influence emission rates.
- Standardization: Ensures consistent, science-based approaches across facilities and countries, aiding multinational compliance.
- Informed Decision-Making: Supplies reliable data for developing ventilation strategies, selecting consumables, and instituting safety protocols tailored to specific workplace needs.
By following this standard, organizations demonstrate commitment to occupational health, compliance with international safety benchmarks, and proactive risk management in welding environments.
