Reference	Title	Category
ISO/TC 112	Vacuum technology	A
ISO/TC 118	Compressors and pneumatic tools, machines and equipment	A
ISO/TC 118/SC 1	Process compressors	A
ISO/TC 118/SC 3	Pneumatic tools and machines	A
ISO/TC 118/SC 4	Compressed air treatment technology	A
ISO/TC 118/SC 6	Air compressors and compressed air systems	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.