| 34220 | Calcium oxide, pure (excl. commercial lime) | |
| 34140 | Calcium palmitate | |
| 35250 | Calcium pantothenate (D- and DL-), not put up as medicaments | |
| 35250 | Calcium penicillin, not put up as medicaments | |
| 34220 | Calcium peroxide | |
| 34270 | Calcium peroxoborate | |
| 34240 | Calcium phosphate, monobasic | |
| 34240 | Calcium phosphate, neutral | |
| 34240 | Calcium phosphate, precipitated | |
| 34614 | Calcium phosphates, disintegrated or calcined | |
| 16110 | Calcium phosphates, natural, ground | |
| 16110 | Calcium phosphates, natural, unground | |
| 34280 | Calcium phosphide | |
| 34240 | Calcium phosphinate (hypophosphite) | |
| 34240 | Calcium phosphite | |
| 34250 | Calcium plumbate | |
| 34270 | Calcium potassium chromate, unmixed | |
| 34400 | Calcium resinate | |
| 16190 | Calcium silicate, natural | |
| 34270 | Calcium silicates, precipitated | |
| 34280 | Calcium silicide | |
| 34140 | Calcium stearate | |
| 34240 | Calcium sulphate (excl. natural calcium sulphate) | |
| 15200 | Calcium sulphates, natural, whether or not crushed or ground (excl. calcined) | |
| 34240 | Calcium sulphide | |
| 34240 | Calcium sulphite, neutral | |
| 34320 | Calcium tannate | |
| 35490 | Calcium tartrate, crude | |
| 34140 | Calcium tartrate, pure | |
| 34270 | Calcium thiocyanate | |
| 34240 | Calcium thiosulphate | |
| 34250 | Calcium titanate | |
| 34340 | Calcium tungstate, luminescent | |
| 34250 | Calcium tungstate, non-luminescent | |
| 34250 | Calcium zirconium trioxide | |
| 45290 | Calculating devices for accounting machines, calculating machines or typewriters | |
| 45170 | Calculating devices for incorporation in machines of of group 451 and 452 | |
| 45170 | Calculating devices, typewriter | |
| 48232 | Calculating instruments based on the slide-rule or other mathematical calculating principle (excl. calculating and accounting machines) | |
| 45130 | Calculating machines with ancillary facilities for recording the results in code on data media (excl. automatic data processing machines) | |