The contact surface
On this page13
What touches the preparation
The container wall and the closure liner. Both are inside the reactive, additive and absorptive question and both have to be specified.
The wall, on this shelf
60 polypropylene and 46 glass, and nothing else. Material is published on 484 of the 486 rows in this group.
The liner, on this shelf
119 heat induction seal, 51 F217, 47 pressure sensitive, 33 recorded as No Liner, 32 Plastis standard, 30 unrecorded, 27 foam, 25 PE foam, 10 Plastis pasteur, 3 polycone.
Which is an unusually complete liner picture
Published on 350 of 486 rows. On several other shelves in this library the field is mostly blank, and here it is mostly filled.
Heat induction seal is the largest group
119 of 380 closures. A bonded foil across the mouth, which is a different contact material again and belongs in the specification by name.
F217 is a polyolefin surface
51 closures. Foamed polyethylene, which reseals well and is a hydrophobic surface pressed against the product whenever the container is inverted.
So an absorptive risk can come from the liner
Not only from the wall. A glass jar with a foamed polyethylene liner has an inert wall and a sorbing closure.
Polycone is the narrow-neck answer
Only 3 of 380. A conical insert that seals a bottle neck, which is what an oral liquid would want, and the count is almost nothing.
63 closures have no liner or no record
33 recorded as No Liner and 30 blank. For a preparation with a shelf life that is the portion to rule out first.
Plastis standard and Plastis pasteur appear 42 times
32 and 10 respectively, which are proprietary liner names rather than generic materials. For a specification that is a name to resolve with the supplier rather than a material to look up.
Which is the practical point about liner fields
A liner value is only useful if it resolves to a material. Some of these do immediately and some need a question.
A blank is an absence of data
Not a claim that there is no liner. We do not guess at the field, so blank means ask.