ISO 10155:1995

Overview

ISO 10155:1995 - Stationary source emissions - Automated monitoring of mass concentrations of particles - defines performance characteristics, test methods and specifications for automated monitoring systems used to measure particulate mass concentration in stationary source (stack) gas streams. The standard provides a field evaluation test program and requires site‑specific correlation with the manual gravimetric reference method in ISO 9096. It is equipment‑principle agnostic and focuses on ensuring automated systems are reliable, repeatably calibrated and appropriate for the local emissions profile.

Key topics and technical requirements

• Measurement system components
  • Sampling (extractive vs. in‑situ/nonextractive; continuous vs. sequential)
  • Analyser (signal generation correlated to mass concentration)
  • Data recorder (processing and output in mass concentration)
• Installation criteria
  • Representative sampling location adjacent to ISO 9096 reference sampling
  • Environmental controls (temperature, weather protection, corrosives, EM fields, vibration)
  • In‑stack (optical methods: avoid stray light) vs. out‑of‑stack (short heated sampling lines, isokinetic sampling)
• System performance specifications
  • Response time: within the manual reference sampling time
  • Zero drift: within ±2% of full working range over one month; automated zero corrections cumulative within 6%
  • Span: nominally 2–3× the allowed emission concentration
  • Span drift: within ±2% of full working range over one month; automated span corrections cumulative within 6%
• Calibration and statistical criteria
  • Correlation coefficient ≥ 0.95 against ISO 9096 reference
  • 95% confidence interval within ±10% of a site emission standard
  • Tolerance interval: 95% confidence that 75% of values lie within ±25% of the emission standard
• Validation tests
  • Response time tests, zero/span field settings and drift measurements, system calibration and field evaluation program

Applications and users

ISO 10155 is used for:

• Commissioning and field evaluation of continuous emission monitoring systems (CEMS) for particulate matter
• Site‑specific calibration and performance verification of automated particulate monitors
• Demonstrating compliance and supporting regulatory reporting where automated systems are correlated to manual methods

Typical users:

• Environmental regulators and compliance auditors
• Plant operators and environmental managers (power plants, cement, steel, incinerators)
• Stack testing laboratories and consultants
• CEMS manufacturers and system integrators

Related standards (if applicable)

• ISO 9096:1992 - Manual gravimetric method (reference method for site correlation)
• ISO 4225, ISO 6879, ISO 7504, ISO 9169 - related vocabulary and measurement performance guidance

Keywords: ISO 10155, automated monitoring, particulate matter, stationary source emissions, CEMS, calibration, performance characteristics, field evaluation, ISO 9096.