No PET at all. For once an absence that is the right answer.
What is here
600 rows: 270 containers and 330 closures. 5 mL to 946 mL with a median of 118.
By material
154 HDPE, 103 glass, 13 PP, and no PET. Three materials, all of which have a place in a laboratory, which is unusual for this catalog.
Why the absence of PET is right
PET is the general-purpose clear packaging resin and it is not a laboratory material. It is not autoclavable and it is not what reagent or media work uses, so its absence costs nothing here.
246 bottles, 19 jars, 3 jugs and 2 tubes. Overwhelmingly bottles, which suits reagents and media and does not suit the four specimen leaves.
By capacity
71 containers at 30 mL or under, 105 at 60 or under, 154 at 120 or under and 248 at 500 or under. The largest is 946 mL.
Which sits inside the transport limit by accident
The aircraft rule caps a primary receptacle at 1 litre. Nothing here exceeds that, which is a coincidence worth knowing rather than a design decision.
The glass Boston round is the workhorse
77 of them. Inert, autoclavable, inspectable, available small, and the format a reagent or a bulk medium belongs in.
HDPE for the things glass is wrong for
154 containers, 41 of them packers. Unbreakable, light, and the right answer for a wash, a buffer or anything carried between benches.
And 13 polypropylene
The smallest group and the one that matters most if autoclaving is the requirement, since polypropylene is the polyolefin normally specified for it. We cannot confirm autoclavability for any of them.
How to shop it
Is it a specimen or a reagent. If a specimen, this is probably not your supplier. If a reagent or a medium, material first, then whether it will be autoclaved, then capacity and closure.
References
The Davis Pack Supply catalog, measured 19 October 2026. The diagnostics and lab shelf is 600 rows: 270 containers and 330 closures. 5 mL to 946 mL with a median of 118; 71 containers at 30 mL or under, 105 at 60 or under, 154 at 120 or under, 248 at 500 or under. 154 HDPE, 103 glass, 13 PP, and no PET. 246 bottles, 19 jars, 3 jugs, 2 tubes. 97 white, 57 natural, 35 clear, 28 amber. Closures: 163 continuous thread, 44 child resistant, 32 dropper assemblies, 27 spouted, 19 flip top, 14 phenolic, 7 buttress, 6 specialty, 5 dome lids.
The archetype behind this shelf is ind-lab: 10 to 1,000 mL, narrow mouth, glass and HDPE, cold fill, thin, aqueous, with "reagent or sample, autoclavability and chemical resistance" as its stated reason. The capacity window fits. Autoclavability is the word that matters most for this craft and our catalog does not record it for any product.
49 CFR 173.199, Category B infectious substances. "A Category B infectious substance must be packaged in a triple packaging consisting of a primary receptacle, a secondary packaging, and a rigid outer packaging." Absorbent material "must be placed between the primary receptacle and secondary packaging" and "must be of sufficient quantity to absorb the entire contents of the primary receptacles". "The primary receptacle or the secondary packaging must be capable of withstanding without leakage an internal pressure producing a pressure differential of not less than 95 kPa." "The packaging must be capable of successfully passing the drop test in 178.609(d) of this subchapter at a drop height of at least 1.2 meters (3.9 feet)." "At least one surface of the outer packaging must have a minimum dimension of 100 mm by 100 mm (3.9 inches)." By aircraft, each primary receptacle may not exceed 1 L and each outer packaging 4 L for liquids, or 4 kg for solids.
law.cornell.edu 