17 November 2021 Invitation to the 23rd VIAQ informal group session VIAQ-23-01/Rev.1	VIAQ-23-01/Rev.1	2021-11-17
17 November 2021 Agenda for the 23rd VIAQ informal group session VIAQ-23-02/Rev.3	VIAQ-23-02/Rev.3	2021-11-17
29 October 2021 VIAQ informal group progress report VIAQ-23-03	VIAQ-23-03	2021-10-29
8 November 2021 Feasibility test on measuring in-vehicle pollutants in Korea (KATRI) VIAQ-23-04	VIAQ-23-04	2021-11-08
25 November 2021 Controllable Lab Test Environment for Assessing Cabin Air Quality regarding PM2.5 and CO2 (Fraunhofer) VIAQ-23-05	VIAQ-23-05	2021-11-25
8 November 2021 CEN Workshop 103: Validation of proposed cabin air quality assessment method (Emissions Analytics) VIAQ-23-06	VIAQ-23-06	2021-11-08
8 November 2021 VIAQ: Measurement of inside and outside PM concentration with one DRX aerosol monitor (NAMI) VIAQ-23-07	VIAQ-23-07	2021-11-08
29 October 2021 VIAQ informal group feedback on text methodology, conditions, and equipment VIAQ-23-08	VIAQ-23-08	2021-10-29
28 October 2021 VIAQ experts feedback table VIAQ-23-09	VIAQ-23-09	2021-10-28
8 November 2021 Reproduction of traffic pollution on a test bench (CERTAM) VIAQ-23-10	VIAQ-23-10	2021-11-08
8 November 2021 Definition of protocol for vehicle in-cabin air quality measurements (ESTACA) VIAQ-23-11	VIAQ-23-11	2021-11-08
22 December 2021 Minutes of the 23rd VIAQ informal group session VIAQ-23-12	VIAQ-23-12	2021-12-22