The products

Rubber and metal in one jar

On this page14

Half the group is elastomer Which is an oxidation and ozone problem And the other half is metal or plastic So the two halves want opposite storage Which the shelf can serve both ways Teflon tape is a third case again And it comes on a spool The capacity range suits all of it 210 of 251 containers are jars Our temperature range field is published on all 251 Though it describes the container rather than the contents So the field narrows the container choice and not the shelf life None of which touches the lead question References

An o ring perishes and a ferrule corrodes.

Half the group is elastomer

O rings, supply washers, hose washers and valve seats are rubber or a synthetic elastomer, and they perish rather than corrode.

Which is an oxidation and ozone problem

An elastomer hardens, cracks and loses its sealing function over years, and it does so faster in warmth and light.

And the other half is metal or plastic

Compression ferrules, tank bolts, pipe clips and push fit clips, which corrode or do not.

So the two halves want opposite storage

An elastomer wants cool and dark. A metal part wants dry above all, because moisture is what corrodes it.

Which the shelf can serve both ways

47 of the 251 containers are white and 26 are black, both opaque, against 91 clear. Opaque for the elastomers and clear for finding the metal ones.

Teflon tape is a third case again

Which is chemically inert and mechanically fragile. Its enemy is being crushed in a drawer rather than anything chemical.

And it comes on a spool

Which is a shape no jar on this shelf is designed around, though a 59 mL jar will hold one.

The capacity range suits all of it

5 to 500 mL with a median of 177, and 60 containers under 60 mL for the small quantities.

210 of 251 containers are jars

Which is the right format for parts picked out by hand, and the only format that matters for ten kinds of small article.

Our temperature range field is published on all 251

Which for an elastomer stored in a garage through a summer is the field that bears on the storage question.

Though it describes the container rather than the contents

The fire and light property makes the same distinction: a rating is what the wall tolerates and not a statement about what is inside.

So the field narrows the container choice and not the shelf life

Which is the honest reading, and the elastomer's own life is a property of the elastomer.

None of which touches the lead question

Which is about water contact in service rather than about storage, and is the half of this property that comes from the statute.

References

The Davis Pack Supply catalog, measured 19 October 2026. 539 rows: 251 containers and 288 closures. This is the store-small-dry shelf, shared identically by nine groups, and the sewing notions property enumerates the inventory. 5 to 500 mL with a median of 177, with 60 containers under 60 mL and 22 under 30. 210 jars, 27 bottles, 12 tubs and pails, 2 tubes. 117 PET, 78 PP, 56 glass. A temperature range is published on all 251. Buyability, a snapshot: 159 of 251 available, 91 not, 1 unrecorded; 93 quote only; 65 full case only, with case packs from 12 to 6,370 and a median of 288.

42 U.S.C. 300g-6(d) applies its 0.25 percent figure as a weighted average with respect to the wetted surfaces of pipes, pipe fittings, plumbing fittings and fixtures. So the measure is area-weighted across the surfaces in contact with water rather than applied to each component or to the mass of an assembly. No computation is performed on these pages for any assembly.

Written from 42 U.S.C. 300g-6(d) and from the catalog as it stood on 19 October 2026. That is a definition from the Safe Drinking Water Act and nothing here describes what the Act prohibits, where it applies, the exemptions, the certification or the effective dates, or determines whether any article is lead free. A weighted average over wetted surfaces is computed for a particular assembly and no computation is performed here. This shelf is shared identically by nine groups and the sewing notions property enumerates the inventory.