A number of definitions that are of use in understanding the table above follow:
- Solid load: non-porous article, without notches or other characteristics that may hinder the penetration of
steam in an equal or greater amount than those of a hollow load.
- Porous load: material that is capable of absorbing fluids; in particular this regards:
A. a full porous load when the load occupies 95±5% of the usable space.
B. a light porous load when the load occupies 20-25% of the usable space.
C. a small porous load when the load occupies 0.5-5% of the usable space.
- Hollow load A: space open at one end in which 1≤L/D≤750, where D is the diameter of the cavity and L the
length, with L≤1500mm, or space open at both ends in which 2≤L/D≤1500, with L≤3000mm and that is not
hollow load B.
- Hollow load B: space open at one end in which 1≤L/D≤5, where D is the diameter of the cavity and L the
length, with D≥5mm, or space open at both ends in which 2≤L/D≤10, with D≥5mm.