The Fogging Test for Automotive Interior Parts is an essential procedure to evaluate the volatile condensable substances (VOCs) emitted from materials under high-temperature conditions. These substances may condense on vehicle windows or surfaces, affecting optical clarity, interior air quality, and driver safety.
To ensure consistent and reliable evaluation, several international standards define the testing procedures and performance requirements for fogging behavior.
Main Standards for Fogging Test
1. DIN 75201
This is the fundamental standard for fogging testing of automotive interior components. It specifies the general test method, equipment requirements, and evaluation criteria to ensure that interior materials maintain good performance under different environmental conditions.
2. ISO 6452
Focuses on the moisture resistance and anti-fungal properties of interior materials. The fogging test under this standard assesses the stability of materials in high-humidity environments.
3. SAE J1756
Defines procedures for testing the weather resistance and durability of automotive interior parts. By simulating outdoor conditions, this fogging test ensures that materials remain stable and free from excessive condensation over time.
4. QB/T 2728
A Chinese industry standard that evaluates volatile organic compound (VOC) emissions from interior components. The fogging test serves as a key indicator for measuring VOC release levels, which directly affect in-vehicle air quality.
5. BS EN 14288
Emphasizes human health and safety by assessing the effects of fogging emissions on interior air quality. Compliance with this standard ensures that materials are safe for passengers and do not emit harmful substances.
Other Related Standards
In addition to the above, many automotive manufacturers and organizations have developed specific internal standards that also reference or modify fogging test requirements, including:
PV 3920, PV 3015 (Volkswagen Group)
ESX83231 (Ford Europe)
NES M0161 (Nissan)
D45 1727 (Honda)
GM 9305P (General Motors)
TSM 0503G (Toyota)
Together, these international and OEM standards form a comprehensive testing system for evaluating the fogging performance, safety, and environmental impact of automotive interior materials.
