ISO 16200-2:2000

Overview

ISO 16200-2:2000 is an international standard developed by ISO that provides guidance on the sampling and analysis of volatile organic compounds (VOCs) in workplace air, focusing on the diffusive sampling method using solvent desorption combined with gas chromatography. This standard is key for ensuring workplace air quality monitoring and evaluating employee exposure to VOCs. It is applicable to a broad range of VOCs, including hydrocarbons, halogenated hydrocarbons, esters, glycol ethers, ketones, and alcohols. The document outlines general procedures, recommended devices and sorbents, and offers guidance for qualitative and quantitative measurement within a practical concentration range of 1 mg/m³ to 1000 mg/m³ over typical exposure times.

Key Topics

• Scope of Application: Guidance on sampling and analysis of airborne VOCs in workplace environments.
• Types of Compounds Covered: Wide applicability to hydrocarbons, halogenated hydrocarbons, esters, glycol ethers, ketones, and alcohols.
• Sampling Techniques: Focuses on diffusive samplers, which do not require active pumping, enhancing convenience for personal or fixed location workplace monitoring.
• Sorbents: Recommends activated coconut shell charcoal, with consideration for alternative sorbents depending on compound polarity.
• Analytical Methods: Solvent desorption (often using carbon disulfide) followed by gas chromatography with appropriate detectors (such as FID or MS).
• Calibration and Efficiency: Stresses the need to calibrate uptake rates and determine desorption efficiency for each sorbent-analyte combination.
• Concentration Range: Effective for detecting VOC concentrations between 1 mg/m³ and 1000 mg/m³ for an 8-hour exposure.
• Practical Considerations: Notes the influence of compound polarity, environmental factors, and device specificity on measurement performance.

Applications

• Occupational Health and Safety: ISO 16200-2:2000 enables industrial hygienists and safety managers to monitor workplace air for VOC contamination, helping protect worker health.
• Personal and Fixed-location Monitoring: The diffusive sampling method is easy to deploy for both personal exposure assessment and ambient workplace monitoring, requiring minimal training and equipment.
• Compliance with Regulatory Requirements: Supports compliance with local or national occupational exposure limits for VOCs by providing standardized air sampling procedures.
• Industrial Processes: Applicable in plants, laboratories, and facilities where emission of VOCs is a concern-such as manufacturing, painting, chemical processing, and cleaning operations.

Related Standards

• ISO 16200-1: Workplace air quality - Sampling and analysis of VOCs using the pumped sampling method.
• EN 838: Diffusive samplers for workplace atmospheres - Requirements and test methods.
• EN 1540: Workplace atmospheres - Terminology relevant to air quality measurement.
• ISO 6141, ISO 6145, ISO 6349: Standards for preparation and analysis of calibration gas mixtures.
• EN 482: General requirements for the performance of procedures for workplace air quality assessment.

Practical Value

Adopting ISO 16200-2:2000 delivers a reliable, standardized approach for VOC monitoring in workplace air, facilitating compliance, enhancing worker protection, and supporting routine or investigative air quality assessments. By leveraging the diffusive sampling method, organizations benefit from simplified logistics, reduced maintenance, and the ability to monitor environments where power sources for active sampling are unavailable or impractical. This standard also ensures consistency across different industries and regulatory frameworks, improving data quality and comparability in occupational hygiene.

Keywords: ISO 16200-2:2000, workplace air quality, volatile organic compounds, VOC sampling, diffusive sampling method, solvent desorption, gas chromatography, occupational health, air monitoring, safety standards.