What goes wrong
On this page10
Choosing by capacity and getting the wrong shape
Two containers at the same volume can be 1.5 by 4.5 inches and roughly 4 by 2.75. A capacity figure cannot distinguish them, and for a needle or a skein of floss the difference decides the outcome.
Treating an outside height as interior depth
The catalog records the container’s own dimension. A 2.5 inch needle does not fit a container of 2.5 inches outside height, and nothing on these pages converts one figure into the other.
Expecting a hoop to fit
No container on this shelf has a diameter of five inches and only seven reach four. The widest is 4.625. Hoop hardware fits; a hoop does not.
Specifying glass for a flat parts job
38 of the 44 glass containers that record both dimensions are taller than wide. Specifying glass narrows a flat shape search to about six rows, which is usually not what the buyer intended.
Putting loose floss in the tall end of the shelf
The two tallest shapes measure 6.745 by 1.95 and 6.664 by 2.39 inches. Skeins interlock and have to be lifted individually, which a hand cannot do at the bottom of a narrow column.
Putting seed beads in the flat end
A tub at 1.5 by 4.5 inches gives beads a wide floor and a low wall. Beads do better in something they fill, with a closure that seats rather than one that presses on.
Screening on a dimension that is not recorded
Fourteen containers record no height and 31 record no diameter. Those rows return nothing to a dimensional filter, which makes a shelf look narrower than it is rather than wider.
Reading the three percentages in the rule as one scale
Five percent by weight, fifteen percent of surface area and twenty percent of surface area do three different jobs. The first changes a name, the second removes an exemption, the third permits a reclassification.
And assuming part 303 reaches anything in this group
It does not. It governs the fiber content statement on a finished textile fiber product, not a needle, a bead, a skein of floss or a hoop screw. It is the spine of this property because it names embroidery by name and because of what it does with a fiber under five percent.