| U0035 | Uranium | 010542 | U0017 | U0010 |
| U0036 | Uranium oxide | 010543 | U0018 | U0008 |
| V0038 | Varnishes (Solvents for –) | 010606 | H0213 | D0230 |
| V0133 | Vine disease preventing chemicals | 010546 | S0628 | V0233 |
| V0137 | Vinegar (Wood –) [pyroligneous acid] | 010133 | F0012 | V0240 |
| V0139 | Vinic alcohol | 010547 | B0221 | V0243 |
| V0144 | Viscose | 010157 | V0251 | V0254 |
| V0153 | Vitriol | 010225 | V0261 | V0282 |
| V0156 | Volatile alkali [ammonia] for industrial purposes | 010558 | A0188 | A0277 |
| V0161 | Vulcanisation accelerators | 010005 | V0323 | A0017 |
| V0163 | Vulcanising preparations | 010549 | V0325 | V0330 |
| W0035 | Wall tiles (Adhesives for –) | 010573 | R0025 | A0109 |
| W0039 | Wallpaper (Adhesives for –) | 010203 | T0033 | C1014 |
| W0081 | Water (Acidulated –) for recharging accumulators | 010251 | S0038 | E0027 |
| W0082 | Water (Distilled –) | 010247 | D0026 | E0042 |
| W0083 | Water (Heavy –) | 010253 | N0047 | E0043 |
| W0086 | Water (Sea –) [for industrial purposes] | 010636 | T0177 | E0037 |
| W0098 | Water glass [soluble glass] | 010544 | V0296 | V0163 |
| W0108 | Water purifying chemicals | 010608 | V0294 | P0990 |
| W0121 | Water-softening preparations | 010023 | V0285 | A0118 |
| W0136 | Waterproofing chemicals (Cement- –), except paints | 010195 | C0012 | C0836 |
| W0137 | Waterproofing chemicals (Leather- –) | 010364 | B0263 | C1575 |
| W0138 | Waterproofing chemicals (Textile- –) | 010362 | T0223 | I0016 |
| W0148 | Wax (Grafting –) for trees | 010198 | V0188 | C0861 |
| W0158 | Wax-bleaching chemicals | 010128 | V0192 | C0874 |
| W0182 | Welding (Protective gases for –) | 010326 | V0164 | G0130 |
| W0187 | Welding chemicals | 010487 | F0406 | S0393 |
| W0192 | Wetting preparations for use in bleaching | 010127 | N0041 | M0497 |
| W0193 | Wetting preparations for use in dyeing | 010398 | N0042 | M0498 |
| W0194 | Wetting preparations for use in the textile industry | 010530 | N0043 | M0499 |
| W0198 | Wheat blight [smut] (Chemical preparations for protection against –) | 010404 | G0008 | N0065 |
| W0201 | Wheat smut (Chemical preparations to prevent –) | 010404 | G0008 | N0065 |
| W0260 | Windows (Anti-tarnishing chemicals for –) | 010523 | A0014 | V0275 |
| W0274 | Wine (Chemicals used in fermenting –) | 010096 | B0185 | B0010 |
| W0276 | Wine finings | 010205 | B0187 | C1005 |
| W0294 | Witherite | 010550 | W0003 | W0011 |
| W0299 | Wood (Tan –) | 010130 | C0188 | B0524 |
| W0300 | Wood alcohol | 010131 | F0049 | E0420 |
| W0301 | Wood alcohol (Preparations of the distillation of –) | 010582 | K0367 | E0421 |
| W0310 | Wood pulp | 010132 | F0009 | P0185 |
| W0319 | Wood vinegar [pyroligneous acid] | 010133 | F0012 | V0240 |
| X0002 | X-ray films, sensitized but not exposed | 010464 | F0281 | R0347 |
| X0011 | Xenon | 010551 | X0001 | X0001 |
| Y0018 | Ytterbium | 010552 | I0116 | Y0007 |
| Y0019 | Yttrium | 010553 | I0117 | Y0008 |
| Z0006 | Zirconia | 010556 | C0099 | Z0004 |
| WIPO Nice Classification - Class 1 10/10 |