Chapter 34 — Soap, organic surfaceactive agents, washing preparations, lubricating preparations, artificial waxes, prepared waxes, polishing or scouring preparations, candles and similar articles, modeling pastes, 'dental waxes' and dental preparations with a basis of plaster

Heading 3402 — Organic surfaceactive agents (other than soap); surface active preparations, washing preparations (including auxiliary washing preparations) and cleaning preparations, whether or not containing soap, other than those of heading 34.01.

National subdivision 3402.3 — Anionic organic surface active agents, whether or not put up for retail sale

Subheading 3402.31 — Linear alkylbenzene sulphonic acids and their salts