Chapter GROUP 3B
Note. Goods specified in the heads of this Group may also be specified in Group 2 of this Part of this Schedule.
Chemical and Petroleum Equipment
| IL1110,IL1145 | Chemical plant and equipment, the following– | |
(1) Equipment for the production of liquid fluorine, and specially designed components therefor… | A | |
(2) Containers, jacketed only, specially designed for the storage and/or transportation of liquid fluorine… | A | |
| IL1129,IL1131 | Pumps, the following– | |
(1) Vacuum pump systems and specially designed components, controls and accessories therefor, the following– | ||
(a) cryopump systems in which the circulation of cooled or liquefied gas is used to achieve a vacuum, static or dynamic, by lowering the temperature of the environment, designed to operate at temperatures lower than –200°C measured at atmospheric pressure… | A | |
(b) vacuum pump systems capable of evacuating a chamber of volume greater than 1 litre to pressures below 10u2–u28 Torr (1.3 x 10u2–u26 Pascals) while the temperature in the chamber is maintained above 800°C… | A | |
(2) Other pumps having either of the following characteristics: | ||
(a) designed to move molten metals by electromagnetic forces; or… | A | |
(b) all flow contact surfaces made of materials containing 90% or more, separately or combined, of tantalum, titanium or zirconium, except materials containing more than 97%, but less than 99.7%, titanium… | A | |
| IL1133 | Pipe valves, cocks and pressure regulators, having all flow contact surfaces made of materials containing 90% or more, separately or combined, of tantalum, titanium or zirconium, except materials containing more than 97%, but less than 99.7% titanium… | A |
| IL1142 | Tubing, the following– | |
(1) Unreinforced, heat-shrinkable tubing having an inner diameter of less than 28.57 mm, before shrinkage, and made of, lined with or covered with any of the substances included in sub-head (2)(c) below… | A | |
(2) Reinforced tubing designed for operating pressures of 210.92 kg/cmu22 or greater, whether or not specially processed to make flow surfaces electrically conductive and made of, lined with or covered with any of the substances included in sub-heads (a), (b) or (c) below; and connectors fittings therefore:… | A | |
(a) coagulated dispersion grades of polytetrafluoroethylene; | ||
(b) copolymers of tetrafluoroethylene and hexafluoropropylene; | ||
(c) copolymers and terpolymers composed of any combination of the monomers tetrafluoroethylene, chlorotrifluoroethylene, vinylidene fluoride, hexafluoropropylene and bromotrifluoroethylene, except the copolymers of tetrafluoroethylene and hexafluropropylene. |