ISO 12219-6:2017

Overview

ISO 12219-6:2017, "Interior air of road vehicles - Part 6", specifies a small chamber method for measuring vapour-phase semi-volatile organic compounds (SVOCs) and semi-volatile carbonyls emitted from vehicle interior parts under high-temperature conditions. The method simulates real-use scenarios (vehicle parked in direct sunlight) where interior surfaces can exceed 65 °C - by convention this standard uses 100 °C as the higher-temperature test point. It can be run as an optional extension to ISO 12219‑4 so VOC, volatile carbonyl and SVOC testing may be completed in a single day.

Key technical topics and requirements

• Test principle: Qualitative and quantitative analysis of vapour-phase organics from trim materials using small emission test chambers that act as a transfer function to vehicle-level emissions.
• Temperature conditions: Tests at 65 °C (per ISO 12219‑4) and 100 °C (high-temperature SVOC screening); warning that materials unstable at 100 °C must not be tested.
• Analytical methods: SVOC and semi-volatile carbonyl analyses follow ISO 16000‑6 procedures.
• Chamber requirements: Design features include materials selection, tightness, air mixing, temperature control, humidification and clean air supply.
• Quality control: Procedures for airtightness testing, recovery/sink effect checks, background concentration measurement, and QA/QC reporting.
• Test protocol: Phased procedure covering specimen history, cleaning, preconditioning, insertion, heating/conditioning, sampling and calculation of emission rates.
• Reporting & QA: Defined test report content and laboratory quality assurance/quality control requirements.

Practical applications and users

Who uses ISO 12219-6:

• Automotive OEMs and interior system engineers evaluating thermal emission behaviour of dashboards, seats and trim.
• Materials and component suppliers screening formulations or prototype “low-emission” assemblies.
• Third‑party testing laboratories performing standardized SVOC/VOC benchmarking and certification.
• Research groups and regulators studying correlations between component-level emissions and in-vehicle air quality.

Typical uses:

• Screening materials for SVOC release at elevated cabin temperatures.
• Comparing emissions between different assemblies or supplier materials.
• Supporting development of correlations between component-level methods and full-vehicle air quality measurements.
• Integrating VOC (65 °C) and SVOC (100 °C) testing into a single test run for efficiency.

Related standards

• ISO 12219‑4 (VOC testing at 65 °C) - complementary; can be combined in one run.
• ISO 16000 series (including ISO 16000‑6) - analytical procedures for VOCs/SVOCs and carbonyls.
• VDA 276 - referenced as a basis for this method.

Keywords: ISO 12219-6, small chamber method, vehicle interior, SVOC emissions, VOC testing, high temperature emissions, interior air quality, automotive materials testing.