UN3516

ADSORBED GAS, TOXIC, CORROSIVE, N.O.S.

• Class: 2.3 (8)
• Packing Group / Category: None
• Special Provisions: 16, 23, 38, 158
• Explosive Limit and Limited Quantity Index: 0
• Excepted Quantities: E0
• ERAP Index: 25
• Passenger Carrying Vessel Index: Forbidden
• Passenger Carrying Road Vehicle or Passenger Carrying Railway Vehicle Index: Forbidden

Special Provision 16

1. The technical name of at least one of the most dangerous substances that predominantly contributes to the danger or dangers posed by the dangerous goods must be shown, in parentheses, on the shipping document following the shipping name in accordance with clause 3.5(1)(c)(ii)(A). The technical name must also be shown, in parentheses, on a small means of containment or on a tag following the shipping name in accordance with subsections 4.11(2) and (3).

2. Despite subsection (1), the technical name for the following dangerous goods is not required to be shown on a shipping document or on a small means of containment when Canadian law for domestic transport or an international convention for international transport prohibits the disclosure of the technical name:

   1. UN1544, ALKALOID SALTS, SOLID, N.O.S. or ALKALOIDS, SOLID, N.O.S.;

   2. UN1851, MEDICINE, LIQUID, TOXIC, N.O.S.;

   3. UN3140, ALKALOID SALTS, LIQUID, N.O.S. or ALKALOIDS, LIQUID, N.O.S.;

   4. UN3248, MEDICINE, LIQUID, FLAMMABLE, TOXIC, N.O.S.; or

   5. UN3249, MEDICINE, SOLID, TOXIC, N.O.S.

3. Despite subsection (1), the technical name for the following dangerous goods is not required to be shown on a small means of containment:

   1. UN2814, INFECTIOUS SUBSTANCE, AFFECTING HUMANS; or

   2. UN2900, INFECTIOUS SUBSTANCE, AFFECTING ANIMALS.

Special Provision 23

1. A person must not import, offer for transport, handle or transport these dangerous goods unless

   1. they are contained in a means of containment that is marked in accordance with section 4.23, or, for UN1005, ANHYDROUS AMMONIA, in a large means of containment, in accordance with section 4.18.2; and

   2. they are accompanied by a shipping document that complies with subparagraph 3.5(1)(c)(vii).

2. This special provision does not apply to a person who transports these dangerous goods in accordance with an exemption set out in section 1.15, 1.17, 1.17.1 or 1.24.

Special Provision 38

A person must not offer for transport, handle or transport these dangerous goods in a large means of containment if they are in direct contact with the large means of containment.

Special Provision 158

1. These Regulations, except for Parts 1 and 2, do not apply in respect of anhydrous ammonia that is adsorbed or absorbed on a solid material that is contained in an ammonia dispensing system or in a pressure receptacle that is intended to form part of an ammonia dispensing system if

   1. the adsorption or absorption presents the following properties:

      1. the pressure at a temperature of 20 °C in the receptacle is less than 60 kPa (0.6 bar),

      2. the pressure at a temperature of 35 °C in the receptacle is less than 100 kPa (1 bar), and

      3. the pressure at a temperature of 85 °C in the receptacle is less than 1.2 MPa (12 bar);

   2. the adsorbent or absorbent material does not meet the criteria in Part 2 (Classification) for inclusion in any of Classes 1 to 8;

   3. the pressure receptacle

      1. does not contain more than 10 kg of ammonia,

      2. is made of a material that, as specified in special provision 379 of the UN Recommendations, is compatible with ammonia,

      3. is hermetically sealed and able to contain the generated ammonia,

      4. has a means of closure that hermetically seals the pressure receptacle and is able to contain the generated ammonia,

      5. is able to withstand the pressure generated at 85 °C with a volumetric expansion of 0.1 % or less,

      6. is fitted with a pressure release device that allows for gas evacuation without violent rupture, explosion or projection once pressure exceeds 1.5 MPa (15 bar), and

      7. is able to withstand a pressure of 2 MPa (20 bar) without leakage when the pressure relief device is deactivated; and

   4. in the case of a pressure receptacle that is contained in an ammonia dispensing system, the pressure receptacle is connected to the system in such a way that the whole system has the same strength as a pressure receptacle that is not contained in an ammonia dispensing system.

2. The mechanical strength properties set out in subsection (1) must be tested

   1. using a prototype of a pressure receptacle that is filled to nominal capacity or a prototype of a pressure receptacle that is filled to nominal capacity and is contained in an ammonia dispensing system; and

   2. by increasing the temperature until the pressures specified in subsection (1) are reached.

CAUTION: This information is provided for information purposes only. It does not replace the Transportation of Dangerous Goods Regulations (TDGR). Please check the TDGR using this link.