Hierarchy classification:

1. top of the aat hierarchies
2. Activities Facet
3. Processes and Techniques (hierarchy name)
4. [processes and techniques by specific type]
5. [image-making processes and techniques]
6. copying
7. reprographic processes
8. light-sensitive reprographic processes
9. diazo process

Anotations

Scope note:

Two-component diazo process in which both the diazonium salts and the coupler are on the base, and development is achieved by neutralizing the acidic stabilizers with vapors derived from evaporating ammonia water.