2B350

Reaction vessels or reactors, with or without agitators, with total internal (geometric) volume greater than 0,1 m^3 (100 litres) and less than 20 m^3 (20 000 litres), where all surfaces that come in direct contact with the chemical(s) being processed or contained are made from any of the following materials:

‘Alloys’ with more than 25 % nickel and 20 % chromium by weight;

Fluoropolymers (polymeric or elastomeric materials with more than 35 % fluorine by weight);

Glass (including vitrified or enamelled coating or glass lining);

Nickel or ‘alloys’ with more than 40 % nickel by weight;

Tantalum or tantalum ‘alloys’;

Titanium or titanium ‘alloys’;

Zirconium or zirconium ‘alloys’; or

Niobium (columbium) or niobium ‘alloys’;

Agitators designed for use in reaction vessels or reactors specified in 2B350.a.; and impellers, blades or shafts designed for such agitators, where all surfaces of the agitator that come in direct contact with the chemical(s) being processed or contained are made from any of the following materials:

‘Alloys’ with more than 25 % nickel and 20 % chromium by weight;

Fluoropolymers (polymeric or elastomeric materials with more than 35 % fluorine by weight);

Glass (including vitrified or enamelled coatings or glass lining);

Nickel or ‘alloys’ with more than 40 % nickel by weight;

Tantalum or tantalum ‘alloys’;

Titanium or titanium ‘alloys’;

Zirconium or zirconium ‘alloys’; or

Niobium (columbium) or niobium ‘alloys’;

Storage tanks, containers or receivers with a total internal (geometric) volume greater than 0,1 m3 (100 litres) where all surfaces that come in direct contact with the chemical(s) being processed or contained are made from any of the following materials:

‘Alloys’ with more than 25 % nickel and 20 % chromium by weight;

Fluoropolymers (polymeric or elastomeric materials with more than 35 % fluorine by weight);

Glass (including vitrified or enamelled coatings or glass lining);

Nickel or ‘alloys’ with more than 40 % nickel by weight;

Tantalum or tantalum ‘alloys’;

Titanium or titanium ‘alloys’;

Zirconium or zirconium ‘alloys’; or

Niobium (columbium) or niobium ‘alloys’;

Heat exchangers or condensers with a heat transfer surface area greater than 0,15 m^2, and less than 20 m^2; and tubes, plates, coils or blocks (cores) designed for such heat exchangers or condensers, where all surfaces that come in direct contact with the chemical(s) being processed are made from any of the following materials:

‘Alloys’ with more than 25 % nickel and 20 % chromium by weight;

Fluoropolymers (polymeric or elastomeric materials with more than 35 % fluorine by weight);

Glass (including vitrified or enamelled coatings or glass lining);

Graphite or ‘carbon graphite’;

Nickel or ‘alloys’ with more than 40 % nickel by weight;

Tantalum or tantalum ‘alloys’;

Titanium or titanium ‘alloys’;

Zirconium or zirconium ‘alloys’;

Silicon carbide;

Titanium carbide; or

Niobium (columbium) or niobium ‘alloys’;

Distillation or absorption columns of internal diameter greater than 0,1 m; and liquid distributors, vapour distributors or liquid collectors designed for such distillation or absorption columns, where all surfaces that come in direct contact with the chemical(s) being processed are made from any of the following materials:

‘Alloys’ with more than 25 % nickel and 20 % chromium by weight;

Fluoropolymers (polymeric or elastomeric materials with more than 35 % fluorine by weight);

Glass (including vitrified or enamelled coatings or glass lining);

Graphite or ‘carbon graphite’;

Nickel or ‘alloys’ with more than 40 % nickel by weight;

Tantalum or tantalum ‘alloys’;

Titanium or titanium ‘alloys’;

Zirconium or zirconium ‘alloys’; or

Niobium (columbium) or niobium ‘alloys’;

Remotely operated filling equipment in which all surfaces that come in direct contact with the chemical(s) being processed are made from any of the following materials:

‘Alloys’ with more than 25 % nickel and 20 % chromium by weight; or

Nickel or ‘alloys’ with more than 40 % nickel by weight;

Valves and components, as follows:

Valves, having both of the following: a. A ‘nominal size’ greater than DN 10 or NPS 3/8; and b. All surfaces that come in direct contact with the chemical(s) being produced, processed, or contained are made from ‘corrosion resistant materials’;

Valves, other than those specified in 2B350.g.1., having all of the following; a. A ‘nominal size’ equal to or greater than DN 25 or NPS 1 and equal to or less than DN 100 or NPS 4; b. Casings (valve bodies) or preformed casing liners; c. A closure element designed to be interchangeable; and d. All surfaces of the casing (valve body) or preformed case liner that come in direct contact with the chemical(s) being produced, processed, or contained are made from ‘corrosion resistant materials’;

Components, designed for valves specified in 2B350.g.1. or 2B350.g.2., in which all surfaces that come in direct contact with the chemical(s) being produced, processed, or contained are made from ‘corrosion resistant materials’, as follows:

Casings (valve bodies);

Preformed casing liners;

Multi-walled piping incorporating a leak detection port, in which all surfaces that come in direct contact with the chemical(s) being processed or contained are made from any of the following materials:

‘Alloys’ with more than 25 % nickel and 20 % chromium by weight;

Fluoropolymers (polymeric or elastomeric materials with more than 35 % fluorine by weight);

Glass (including vitrified or enamelled coatings or glass lining);

Graphite or ‘carbon graphite’;

Nickel or ‘alloys’ with more than 40 % nickel by weight;

Tantalum or tantalum ‘alloys’;

Titanium or titanium ‘alloys’;

Zirconium or zirconium ‘alloys’; or

Niobium (columbium) or niobium ‘alloys’;

Multiple-seal and seal-less pumps, with manufacturer`s specified maximum flow-rate greater than 0,6 m^3/hour, or vacuum pumps with manufacturer`s specified maximum flow-rate greater than 5 m^3/hour (under standard temperature (273 K (0 °C)) and pressure (101,3 kPa) conditions), other than those specified in 2B233; and casings (pump bodies), preformed casing liners, impellers, rotors or jet pump nozzles designed for such pumps, in which all surfaces that come in direct contact with the chemical(s) being processed are made from any of the following materials:

‘Alloys’ with more than 25 % nickel and 20 % chromium by weight;

Ceramics;

Ferrosilicon (high silicon iron alloys);

Fluoropolymers (polymeric or elastomeric materials with more than 35 % fluorine by weight);

Glass (including vitrified or enamelled coatings or glass lining);

Graphite or ‘carbon graphite’;

Nickel or ‘alloys’ with more than 40 % nickel by weight;

Tantalum or tantalum ‘alloys’;

Titanium or titanium ‘alloys’;

Zirconium or zirconium ‘alloys’; or

Niobium (columbium) or niobium ‘alloys’;

Incinerators designed to destroy chemicals specified in entry 1C350, having specially designed waste supply systems, special handling facilities and an average combustion chamber temperature greater than 1 273 K (1 000 °C), in which all surfaces in the waste supply system that come into direct contact with the waste products are made from or lined with any of the following materials:

‘Alloys’ with more than 25 % nickel and 20 % chromium by weight;

Ceramics; or

Nickel or ‘alloys’ with more than 40 % nickel by weight;

Prefabricated repair assemblies having metallic surfaces that come in direct contact with the chemical(s) being processed which are made from tantalum or tantalum alloys as follows, and specially designed components therefor:

Designed for mechanical attachment to glass-lined reaction vessels or reactors specified in 2B350.a.; or

Designed for mechanical attachment to glass-lined storage tanks, containers or receivers specified in 2B350.c.