Manufacture of basic chemicals
(a) extraction of methane, ethane, butane or propane, see 0620; (b) manufacture of fuel gases such as ethane, butane or propane in a petroleum refinery, see 19201; (c) manufacture of nitrogenous fertilizers and nitrogen compounds, see 20129; (d) manufacture of ammonia, see 20129; (e) manufacture of ammonium chloride, see 20129; (f) manufacture of nitrites and nitrates of potassium, see 20129; (g) manufacture of ammonium carbonates, see 20129; (h) manufacture of plastics in primary forms, see 20131; (i) manufacture of synthetic rubber in primary forms, see 20132; (j) manufacture of prepared dyes and pigments, see 2022; (k) manufacture of crude glycerol, see 20231; (l) manufacture of natural essential oils, see 20299; (m) manufacture of aromatic distilled waters, see 20299 ; (n) manufacture of salicylic and O-acetylsalicylic acids, see 21001
Pembuatan kimia asas
(a) pengekstrakan metana, etana, butana atau propana, lihat 0620; (b) pembuatan gas pembakar seperti etana, butana atau propana dalam penapisan petroleum, lihat 19201; (c) pembuatan baja nitrogen dan sebatian nitrogen, lihat 20129; (d) pembuatan ammonia, lihat 20129; (e) pembuatan ammonium klorida, lihat 20129; (f) pembuatan nitrit dan nitrat daripada kalium, lihat 20129; (g) pembuatan ammonium karbonat, lihat 20129; (h) pembuatan plastik dalam bentuk primer, lihat 20131 ; (i) pembuatan getah sintetik dalam bentuk primer, lihat 20132; (j) pembuatan bahan pencelup dan pigmen tersedia, lihat 2022; (k) pembuatan gliserol mentah, lihat 20231; (l) pembuatan minyak pati asli, lihat 20299; (m) pembuatan air suling aromatik, lihat 20299; (n) pembuatan asid salisilik dan O-asetilsalisilik, lihat 21001