Scanner transform to ADP

Howdy! I’ve been reading the ADP and ADX the legacy document. In a section of the document it gets mentioned:

“Procedures for characterizing a scanner with spectral responsivities other than those of ISO Status M or a linear combination of ISO Status M responsivities, and the calculation of appropriate IDTs, are described in other documents detailing the Image Interchange Framework.”

I tried to find the document that goes over the specific workflow but I couldn’t find it anywhere. Do you know where to look? Maybe it’s discussed in one the the SMPTE standards…but which one? Thanks :slight_smile: