Reference	Title	Category
ISO/CASCO	Committee on conformity assessment	A
ISO/TC 12	Quantities and units	A
ISO/TC 43	Acoustics	A
ISO/TC 43/SC 3	Underwater acoustics	A
ISO/TC 85/SC 2	Radiological protection	A
ISO/TC 146	Air quality	A
ISO/TC 146/SC 3	Ambient atmospheres	A
ISO/TC 207/SC 7	Greenhouse gas and climate change management and related activities	A
ISO/TC 212	Medical laboratories and in vitro diagnostic systems	A
ISO/TC 213	Dimensional and geometrical product specifications and verification	A
ISO/TC 334	Reference materials	A

Notes

Liaisons A: Organizations that make an effective contribution to the work of the technical committee or subcommittee for questions dealt with by this technical committee or subcommittee. 
Liaisons B: Organizations that have indicated a wish to be kept informed of the work of the technical committee or subcommittee. 
Liaisons C: Organizations that make a technical contribution to and participate actively in the work of a working group.