proper shipping name – IMDG Code Compliance Centre

SP 274 the ‘What’ and ‘Whys’ of Technical Names

Special Provision 274 assigned to Generic and Not Otherwise Specified (N.O.S.) entries in Model Regulations requires the shipper to supplement the Proper Shipping Name (PSN) with Technical Name on the Packages (marking) and in shipping papers (Dangerous Goods Declaration).

‘What’ must supplement the proper shipping name and ‘Why’ this is required.

What

The Generic and N.O.S. entries assigned with SP 274 shall be supplemented with

Technical or Chemical group names
Shall be a recognized chemical or other name currently used in scientific and technical handbooks, journals and texts.
Shall be entered in brackets immediately following the Proper Shipping Name
Modifier, such as “contains” or “containing” or other qualifying words such as “mixture”, “solution”, etc., and the percentage of the technical constituent may also be used
Trade names shall not be used for this purpose

For Pesticides below may be used:

ISO common name(s),
other name(s) in the WHO Recommended Classification of Pesticides by Hazard and Guidelines to Classification
the name(s) of the active substance(s)

When not required?

When a national law or international convention prohibits disclosing the name of a controlled substance.

Why Technical name is required?

Below table shows some of the reasons for the requirement of technical names through special provision 274

LOGIC OF TECHNICAL NAME UNDER SP 274 - UN MODEL REGULATIONS — LOGIC OF TECHNICAL NAME UNDER SP 274 – UN MODEL REGULATIONS

Example: UN 1993 Flammable liquid, n.o.s. (contains xylene and benzene)

This article is in accordance with 37^th amendment of IMDG Code.

Acids and Alkalis ( IMDG 35-10)

Most viewed topic under segregation on this site is Acids and Alkalis. Most of the Acids and Alkalis fall under Class 8 ; this makes it imperative that we must look in Column 16 of DGL to check the segregation requirements.

Acids and Alkalis are not allowed to be packed in the same outer packaging or stowed in the same container.

When both Acids and Alkalis belongs to class 8 they may be kept together under below clauses of IMDG Code

Limited Quantities different Packaging – No Segregation applicable
Excepted Quantities different Packaging – No Segregation applicable
Same outer packing or same container – As per 7.2.1.13.2 of IMDG Code
Same outer packing in Limited Quantities -As per 3.4.4.1.2 of IMDG Code

Refer 5.4.1.5.2.2 & 5.4.1.5.11.3 of IMDG Code for dangerous goods declaration of Acid and Alkali consolidation.

For quick reference both Acids and Alkalis in 35^th Amendment of IMDG Code is listed below

* indicates strong acids

ACIDS		ALKALIS
UN No.	Proper Shipping Name	UN No.	Proper Shipping Name
1052	Hydrogen fluoride, anhydrous*	1005	Ammonia, anhydrous
1182	Ethyl chloroformate	1160	Dimethylamine, aqueous solution
1183	Ethyldichlorosilane	1163	Dimethylhydrazine, unsymmetrical
1238	Methyl chloroformate	1235	Methylamine, aqueous solution
1242	Methyldichlorosilane	1244	Methylhydrazine
1250	Methyltrichlorosilane	1382	Potassium sulphide, anhydrous or potassium sulphide with less than 30% water of crystallization
1295	Trichlorosilane	1385	Sodium sulphide, anhydrous or sodium sulphide with less than 30% water of crystallization
1298	Trimethylchlorosilane	1604	Ethylenediamine
1305	Vinyltrichlorosilane	1719	Caustic alkali liquid, n.o.s
1572	Cacodylic acid	1813	Potassium hydroxide, solid
1595	Dimethyl sulphate	1814	Potassium hydroxide, solution
1715	Acetic anhydride	1819	Sodium aluminate solution
1716	Acetyl bromide	1823	Sodium hydroxide, solid
1717	Acetyl chloride	1824	Sodium hydroxide solution
1718	Butyl acid phosphate	1825	Sodium monoxide
1722	Allyl chloroformate	1835	Tetramethylammonium hydroxide solution
1723	Allyl iodide	1847	Potassium sulphide, hydrated with not less than 30% water of crystallization
1724	Allyltrichlorosilane, stabilized	1849	Sodium sulphide, hydrated with not less than 30% water
1725	Aluminium bromide, anhydrous	1907	Soda lime with more than 4% sodium hydroxide
1726	Aluminium chloride, anhydrous	1922	Pyrrolidine
1727	Ammonium hydrogendifluoride, solid	2029	Hydrazine, anhydrous
1728	Amyltrichlorosilane	2030	Hydrazine, aqueous solution with more than 37% hydrazine, by mass
1729	Anisoyl chloride	2033	Potassium monoxide
1730	Antimony pentachloride, liquid	2073	Ammonia solution relative density less than 0.880 at 15 °C in water, with more than 35% but not more than 50% ammonia
1731	Antimony pentachloride solution	2079	Diethylenetriamine
1732	Antimony pentafluoride	2259	Triethylenetetramine
1733	Antimony trichloride	2270	Ethylamine, aqueous solution, with not less than 50% but not more than 70% ethylamine
1736	Benzoyl chloride	2318	Sodium hydrosulphide with less than 25% water of crystallization
1737	Benzyl bromide	2320	Tetraethylenepentamine
1738	Benzyl chloride	2379	1,3-Diemthylbutylamine
1739	Benzyl chloroformate	2382	Dimethylhydrazine, symmetrical
1740	Hydrogendifluorides, n.o.s.	2386	1-Ethylpiperidine
1742	Boron trifluoride acetic acid complex, liquid	2399	1-Methylpiperidine
1743	Boron trifluoride propionic acid complex, liquid	2401	Piperidine
1744	Bromine or bromine solution	2491	Ethanolamine or ethanolamine solution
1745	Bromine pentafluoride	2579	Piperazine
1746	Bromide trifluoride	2671	Aminopyridines
1747	Butyltrichlorosilane	2672	Ammonia solution relative density between 0.880 and 0.957 at 15 °C in water, with more than 10% but not more than 35% ammonia, by mass
1750	Chloroacetic acid solution	2677	Rubidium hydroxide solution
1751	Chloroacetic acid, solid	2678	Rubidium hydroxide, solid
1752	Chloroacetyl chloride	2679	Lithium hydroxide solution
1753	Chlorophenyltrichlorosilane	2680	Lithium hydroxide
1754	Chlorosulphonic acid (with or without sulphur trioxide)	2681	Caesium hydroxide solution
1755	Chromic acid solution	2682	Caesium hydroxide
1756	Chromic fluoride, solid	2683	Ammonium sulphide solution
1757	Chromic fluoride solution	2733	Amines, flammable, corrosive, n.o.s. or polyamines, flammable, corrosive,n.o.s
1758	Chromium oxychloride	2734	Amines, liquid, corrosive, flammable, n.o.s. or polyamines, liquid, corrosive, flammable, n.o.s.
1762	Cyclohexenyltrichlorosilane	2735	Amines, liquid, corrosive, n.o.s. or polyamines, liquid, corrosive, n.o.s.
1763	Cyclohexyltrichlorosilane	2795	Batteries, wet, filled with alkali electric storage
1764	Dichloroacetic acid	2797	Battery fluid, alkali
1765	Dichloroacetyl chloride	2818	Ammonium polysulphide solution
1766	Dichlorophenyltrichlorosilane	2949	Sodium hydrosuonlphide, solid with not less than 25% water of crystallizati
1767	Diethyldichlorosilane	3028	Batteries, dry, containing potassium hydroxide, solid electric storage
1768	Difluorophosphoric acid, anhydrous	3073	Vinylpyridines, stabilized
1769	Diphenyldichlorosilane	3253	Disodium trioxosilicate
1770	Diphenyl methylbromide	3259	Amines, solid, corrosive, n.o.s. or polyamines, solid, corrosive, n.o.s.
1771	Dodecyltrichlorosilane	3262	Corrosive solid, basic, inorganic, n.o.s
1773	Ferric chloride, anhydrous	3263	Corrosive solid, basic, organic, n.o.s
1775	Fluoroboric acid	3266	Corrosive liquid, basic, inorganic, n.o.s
1776	Fluorophosphoric acid, anhydrous	3267	Corrosive liquid, basic, organic, n.o.s
1777	Fluorosulphonic acid*	3293	Hydrazine, aqueous solution with not more than 37% hydrazine, by mass
1778	Fluorosilicic acid	3318	Ammonia solution relative density less than 0.880 at 15 °C in water, with more than 50% ammonia
1779	Formic acid with more than 85% acid by mass	3320	Sodium borohydride and sodium hydroxide solution with not more than 12% sodium borohydride and not more than 40% sodium hydroxide, by mass
1780	Fumaryl chloride	3423	Tetramethylammonium hydroxide, solid
1781	Hexadecyltrichlorosilane	3484	Hydrazine aqueous solution, flammable, with more than 37% hydrazine, by mass
1782	Hexafluorophosphoric acid
1784	Hexyltrichlorosilane
1786	Hydrofluoric acid and sulphuric acid mixture*
1787	Hydriodic acid*
1788	Hydrobromic acid*
1789	Hydrochloric acid*
1790	Hydrofluoric acid*
1792	Iodine monochloride
1793	Isopropyl acid phosphate
1794	Lead sulphate with more than 3% free acid
1796	Nitrating acid mixture*
1798	Nitrohydrochloric acid*
1799	Nonyltrichlorosilane
1800	Octadecyltrichlorosilane
1801	Octyltrichlorosilane
1802	Perchloric acid with not more than 50% acid, by mass*
1803	Phenolsulphonic acid, liquid
1804	Phenyltrichlorosilane
1805	Phosphoric acid, solution
1806	Phosphorus pentachloride
1807	Phosphorus pentoxide
1808	Phosphorus tribromide
1809	Phosphorus trichloride
1810	Phosphorus oxychloride
1811	Potassium hydrogendifluoride, solid
1815	Propionyl chloride
1816	Propyltrichlorosilane
1817	Pyrosulphuryl chloride
1818	Silicon tetrachloride
1826	Nitrating acid mixture, spent*
1827	Stannic chloride, anhydrous
1828	Sulphur chlorides
1829	Sulphur trioxide, inhibited or sulphur trioxide, stabilized
1830	Sulphuric acid with more than 51% acid*
1831	Sulphuric acid, fuming*
1832	Sulphuric acid, spent*
1833	Sulphurous acid
1834	Sulphuryl chloride
1836	Thionyl chloride
1837	Thiophosphoryl chloride
1838	Titanium tetrachloride
1839	Trichloroacetic acid
1840	Zinc chloride solution
1848	Propionic acid with not less than 10% and less than 90% by mass
1873	Perchloric acid with more than 50% but not more than 72% acid, by mass*
1898	Acetyl iodide
1902	Diisooctyl acid phosphate
1905	Selenic acid
1906	Sludge acid*
1938	Bromoacetic acid solution
1939	Phosphorus oxybromide
1940	Thioglycolic acid
2031	Nitric acid, other than red fuming*
2032	Nitric acid, red fuming*
2214	Phthalic anhydride with more than 0.05% of maleic anhydride
2215	Maleic anhydride
2218	Acrylic acid, inhibited
2225	Benzenesulphonyl chloride
2226	Benzotrichloride
2240	Chromosulphuric acid*
2262	Dimethylcarbamoyl chloride
2267	Dimethyl thiophosphoryl chloride
2305	Nitrobenzenesulphonic acid
2308	Nitrosylsulphuric acid, liquid*
2331	Zinc chloride, anhydrous
2353	Butyryl chloride
2395	Isobutyrylchloride
2407	Isopropyl chloroformate
2434	Dibenzyldichlorosilane
2435	Ethylphenyldichlorosilane
2437	Methylphenyldichlorosilane
2438	Trimethylacetyl chloride
2439	Sodium hydrogendifluoride
2440	Stannic chloride pentahydrate
2442	Trichloroacetyl chloride
2443	Vanadium oxytrichloride
2444	Vanadium tetrachloride
2475	Vanadium trichloride
2495	Iodine pentafluoride
2496	Propionic anhydride
2502	Valeryl chloride
2503	Zirconium tetrachloride
2506	Ammonium hydrogen sulphate
2507	Chloroplatinic acid, solid
2508	Molybdenum pentachloride
2509	Potassium hydrogen sulphate
2511	2-Chloropropionic acid
2513	Bromoacetyl bromide
2531	Methacrylic acid, stablilized
2564	Trichloroacetic acid solution
2571	Alkylsulphuric acids
2576	Phosphorus oxybromide, molten
2577	Phenylacetyl chloride
2578	Phosphorus trioxide
2580	Aluminium bromide solution
2581	Aluminium chloride solution
2582	Ferric chloride solution
2583	Alkylsulphonic acids, solid or arylsulphonic acids, solid with more than 5% free sulphuric acid
2584	Alkylsulphonic acids, liquid or arylsulphonic acids, liquid with more than 5% free sulphuric acid
2585	Alkylsulphonic acids, solid or arylsulphonic acids, solid with not more than 5% free sulphuric acid
2586	Alkylsulphonic acids, liquid or arylsulphonic acids, liquid with not more than 5% free sulphuric acid
2604	Boron trifluoride diethyl etherate
2626	Chloric acid, aqueous solution with not more than 10% chloric acid
2642	Fluoroacetic acid
2670	Cyanuric chloride
2691	Phosphorus pentabromide
2692	Boron tribromide
2698	Tetrahydrophthalic anhydrides with more than 0.05 % of maleic anhydride
2699	Trifluoroacetic acid
2739	Butyric anhydride
2740	n-Propyl chloroformate
2742	Chloroformates, toxic, corrosive, flammable, n.o.s.
2743	n-Butyl chloroformate
2744	Cyclobutyl chloroformate
2745	Chloromethyl chloroformate
2746	Phenyl chloroformate
2748	2-Ethylhexyl chloroformate
2751	Diethylthiophosphoryl chloride
2789	Acetic acid, glacial or acetic acid solution, more than 80% acid, by mass
2790	Acetic acid solution, more than 10% but not more than 80% acid, by mass
2794	Batteries, wet filled with acid electric storage
2796	Sulphuric acid with not more than 51% acid or battery fluid, acid*
2798	Phenylphosphorus dichloride
2799	Phenylphosphorus thiodichloride
2802	Copper chloride
2817	Ammonium hydrogendifluoride solution
2819	Amyl acid phosphate
2820	Butyric acid
2823	Crotonic acid, solid
2826	Ethyl chlorothioformate
2829	Caproic acid
2834	Phosphorous acid
2851	Boron trifluoride dehydrate
2865	Hydroxylamine sulphate
2869	Titanium trichloride mixture
2879	Selenium oxychloride
2967	Sulphamic acid
2985	Chlorosilanes, flammable, corrosive, n.o.s.
2986	Chlorosilanes, corrosive, flammable, n.o.s.
2987	Chlorosilanes, corrosive, n.o.s.
2988	Chlorosilanes, water-reactive, flammable, corrosive, n.o.s.
3246	Methanesulphonyl chloride
3250	Chloroacetic acid, molten
3260	Corrosive solid, acidic, inorganic, n.o.s.
3261	Corrosive solid, acidic, organic, n.o.s.
3264	Corrosive liquid, acidic, inorganic, n.o.s.
3265	Corrosive liquid, acidic, organic, n.o.s.
3277	Chloroformates, toxic, corrosive, n.o.s.
3361	Chlorosilanes, toxic, corrosive, n.o.s.
3362	Chlorosilanes, toxic, corrosive, flammable, n.o.s.
3412	Formic acid with not less than 10% but not more than 85% acid by mass
3412	Formic acid with not less than 5% but not more than 10% acid by mass
3419	Boron trifluoride acetic acid complex, solid
3420	Boron trifluoride propionic acid complex, solid
3421	Potassium hydrogendifluoride solution
3425	Bromoacetic acid, solid
3453	Phosphoric acid, solid
3456	Nitrosylsulphuric acid, solid
3463	Propionic acid with not less than 90% acid by mass
3472	Crotonic acid, liquid

Heat Pipe

Heat pipe is a heat-transfer device which works on thermal conductivity and phase transition to manage the transfer of heat between two solid interfaces.

Heat pipes have various uses in the industry such as electronic cooling, radar electronics, waste heat recovery, satellite thermal control etc. Certain Heat pipes contains Propylene (UN 1077), Toluene (UN1294) and Anhydrous Ammonia (UN1005).

Experts from Spain submitted proposal at the Forty-first session of Sub-Committee of Experts on the Transport of Dangerous Goods to assign new UN Number for transport of heat pipes since this type of devise is not fitting into any currently available proper shipping names.

Proposal is to assign a new UN 3XXX with proper shipping name “Dangerous goods in heat pipes”

Read more about heat pipes on European Space Agency‘s website

PANT and PAINT RELATED MATERIALS

UN 1263 has two proper shipping names

PAINT (including paint, lacquer, enamel, stain, shellac solutions, varnish, polish, liquid filler and liquid lacquer base)
PAINT RELATED MATERIAL (including paint thinning or reducing compound)

Which of the proper shipping name must be used when both of these are packed in same outer packing?

When both paint and thinning compound is packed together in same outer packing the package must display proper shipping name as “ PAINT RELATED MATERIAL “ and same must be entered in the Dangerous goods declaration.

Non- Dangerous Goods Declaration or Non-Hazardous Letter

ALUMINIUM SMELTING BY-PRODUCTS

Aluminium is made mainly from bauxite ore. Australia is one of the biggest suppliers of bauxite ore in the world. Cost of production of aluminium is comparatively higher due to high energy consumption involved in the process.

Alcoa's Point Henry smelter - from the other side of Corio Bay - Geelong, Victoria, Australia

One of the byproducts of aluminium production is called “aluminium smelting by-products” This is typically a complex waste however can be used to extract more aluminium.

Aluminium smelting byproducts are reactive with water. When in contact with water it will generate hydrogen, acetylene, ammonia, phosphine and methane. These flammable gasses will easily ignite.

IMDG Code list this product as UN 3170, Class 4.3, ALUMINIUM SMELTING BY-PRODUCTS or ALUMINIUM REMELTING BY-PRODUCTS, Packing group II and III

Stowage requirement in IMDG Code states “Category B. Under deck in a mechanically ventilated space. Only to be loaded under dry weather conditions.

Cloudy weather in Singapore. Photo by Eric Bayona Faytaren

When this product is transported for disposal purpose then it will fall under BASEL Convention and proper shipping name must be preceded by word WASTE.

IMSBC Code states “Aluminium smelting by-products are wastes from the aluminium manufacturing process. Grey or black powder or lumps with some metallic inclusions. The term encompasses various different waste materials, which include but are not limited to: ALUMINIUM DROSS, SPENT CATHODES, ALUMINIUM SALT SLAGS, SPENT POTLINER, ALUMINIUM SKIMMINGS

Stowage factor (m3/t) : 0.82

DANGEROUS GOODS IN MACHINERY or APPARATUS

Certain machinery or apparatus containing small quantities of dangerous goods may be transported by sea under UN Number 3363 Class 9. For assigning this UN Number various factors must be checked and ensure the conditions laid down in special provision 301 of UN Model Regulations / IMDG Code are met with.

Click here to see n example of Dangerous goods in apparatus.

Special provision 301 of UN Model Regulations

The entry UN 3363, DANGEROUS GOODS IN MACHINERY or DANGEROUS GOODS IN APPARATUS, Class 9 only applies to machinery or apparatus containing dangerous substances as a residue or an integral element of the machinery or apparatus.

It shall not be used for machinery or apparatus for which a Proper Shipping Name already exists in the Dangerous Goods List.
Machinery and apparatus transported under this entry shall only contain dangerous goods which are authorized to be transported in accordance with the provisions in chapter 3.4 (Limited quantities).

The quantity of dangerous goods in machinery or apparatus shall not exceed the quantity specified in column 7a of the Dangerous Goods List for each item of dangerous goods contained.

If the machinery or apparatus contains more than one item of dangerous goods, the individual substances shall not be capable of reacting dangerously with one another (see 4.1.1.6).

When it is required to ensure liquid dangerous goods remain in their intended orientation, package orientation labels meeting the specifications of ISO 780:1985 shall be affixed on at least two opposite vertical sides with the arrows pointing in the correct direction.

The transport of dangerous goods in machinery or apparatus where the quantity of dangerous goods exceeds the quantity specified in column 7a of the Dangerous Goods List is authorized when approved by the competent authority.

European road regulations do not consider UN 3363 as dangerous goods. Section 1.1.3.1.( Exemptions related to the nature of the transport) section (b) of ADR states “ The carriage of machinery of equipment not specified in this Annex and which happen to contain dangerous goods in their i8nternal or operational equipment, provided that measures have been taken to prevent any leakage of contents in normal conditions of carriage”.

Not Subject to IMDG Code

Certain substances, materials or articles which are listed in the UN Model regulations are not considered as hazardous for sea transport. However due to harmonization of rules these are listed in IMDG Code.

Below are the entries of such substances, materials or articles in IMDG Code 35-10.

UN No.	Class	Proper Shipping Name
1910	8	CALCIUM OXIDE
2807	9	MAGNETIZED MATERIAL
2812	8	SODIUM ALUMINATE, SOLID
3334	9	AVIATION REGULATED LIQUID, N.O.S.
3335	9	AVIATION REGULATED SOLID, N.O.S.

What

When not required?

Why Technical name is required?

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