ISO concentricity modified at MMR legaliity

[aniiben]

Is it legal according to ISO for those two callouts:

Concentricity 0.1 M R to A
ACS

Or

Concentricity 0.3 M to A(M)
ACS


I know without ACS modifier wouldn't be an issue, but I am not sure about with ACS.
Not sure what the designer wanted, but for now I am questioning the callouts legality.

 

[Kedu]

I have some ISO standards available (not all of the entire collection) and, as far as I can see, there is no direct prohibition of shown callouts.
I looked in ISO 1101, 2692, 5458 and 5459.
So, concentricity modifid at MMR with or without reciprocity requirement R
AND
ACS under the FCF is legal.

I would force my lack and ask pmarc for his point of view.

Pmarc,
What do you think?

(Probably functionality dropped to second/third place in OP's question)

 

[aniiben]

Pmarc,

Are shown callouts valid (correct) in ISO?

 

[Eurotex]

I'm seeing your callouts as shown below:

| Concentricity | dia 0.1 (M)(R) | A |
ACS

| Concentricity | dia 0.3 (M) | A(M) |
ACS

I'm a new convert to ISO GPS from ASME Y14.5. I understand that by default we would evaluate the diameter using the envelope principle (and this would result in a stable diameter to use in the trade-off between size and location). If we were to change the default diameter evaluation to be at ACS, I'm a little unsure how we would tie the diameter cross section to the position cross section. Would we have to tie the two point diameter measurement to the datum reference frame or allow it to float as normal?