Containers

What we actually stock for this

Updated October 2026

On this page8

The shelf, measured The forms Glass, and only glass The necks Color The closures What this shelf is not for References

The smallest container shelf in this library, and the most uniform: 29 jars, all glass.

The shelf, measured

Twenty-nine containers from 55 to 946 mL, all 29 of them glass, with 222 closures verified against their necks. No other property here runs on so few containers, and we would rather say that than imply a wide choice.

The forms

18 straight-sided jars, 7 mason and paragon jars, and one each of specialty jar, low profile jar, Boston round and square. Straight sides and a wide mouth are what a solid specimen needs.

Glass, and only glass

Which is right for this use. Preservatives attack plastics, glass does not permeate, and a specimen is looked at. The trade is weight and breakage, and for a cabinet rather than a parcel that is an easy trade.

The necks

58-400 and 53-400 at 7 each, 70-450G at 5, 63-400 and 89-400 at 3 each, 70-400 at 2, with 70-450 and 48-400 behind them. Wide finishes throughout, which is what getting a specimen in and out requires.

Color

19 clear, 6 amber, 3 frosted and 1 blue. Clear is the display choice and the majority; amber and frosted are there for specimens where fading matters more than being seen.

The closures

200 continuous thread, 20 dome lids and 2 specialty. By liner, 61 HIS, 38 F217, 30 pressure-sensitive, 25 with none, 19 PE foam and 15 foam. The liner against your preservative is the decision that matters.

What this shelf is not for

It is not a shipping receptacle for a flammable preservative under 49 CFR 173.4, because the smallest jar here is 55 mL against a 30 mL limit. These are collection and display jars, which is a different job and an honest one.

References

49 CFR 173.4, Small quantities for highway and rail. Class 3 and other listed materials are not subject to other requirements where the inner receptacle holds no more than 30 mL of liquid, is not liquid-full at 55 C, is glass, earthenware, metal or plastic of at least 0.2 mm, has any removable closure held securely with wire, tape or other positive means, and is packed with non-reactive absorbent able to take the entire contents inside a strong outer packaging, the whole demonstrated by prototype testing. law.cornell.edu

Written from federal statute and regulation, not from a collection room. Wildlife law is federal, state and sometimes tribal at once, and the Lacey Act makes a state or foreign violation a federal matter. Nothing here is advice on a particular specimen, and the permit questions belong to the Fish and Wildlife Service.