Chapter 38 — Miscellaneous chemical products
Mixtures and preparations consisting mainly of (5-ethyl-2-methyl-2- oxido-1, 3, 2-dioxaphosphinan-5-yl)methyl methyl methylphosphonate and bis[(5-ethyl-2-methyl-2-oxido-1, 3, 2- dioxaphosphinan-5-yl) methyl] methylphosphonate: