… Natural rubber, balata, gutta-percha, guayule, chicle and similar natural gums, in primary forms or in …
Explanatory notes
… 40.01 ‑ Natural rubber, balata, gutta-percha, guayule, chicle and similar natural gums, in primary forms or in … in suspension 30 % to 40 % of rubber (i.e., polyisoprene of high molecular weight). This part includes : (1) … of commercial latexes is usually between 60 % and 62 %; higher concentrations are also found and in some cases the …