Shipping Classification
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Magnesium chlorate
Class 5.1 · UN2723
Magnesium diamide
Class 4.2 · UN2004
Magnesium dross, wet or hot
Forbidden
Magnesium fluorosilicate
Class 6.1 · UN2853
Magnesium granules, coated, particle size not less than 149 microns
Class 4.3 · UN2950
Magnesium hydride
Class 4.3 · UN2010
Magnesium nitrate
Class 5.1 · UN1474
Magnesium or Magnesium alloys with more than 50 percent magnesium in pellets, turnings or ribbons
Class 4.1 · UN1869
Magnesium perchlorate
Class 5.1 · UN1475
Magnesium peroxide
Class 5.1 · UN1476
Magnesium phosphide
Class 4.3 · UN2011
Magnesium silicide
Class 4.3 · UN2624
Magnesium, powder or Magnesium alloys, powder
Class 4.3 · UN1418
Maleic anhydride, molten
Class 8 · UN2215
Maneb or Maneb preparations with not less than 60 percent maneb
Class 4.2 · UN2210
Maneb stabilized or Maneb preparations, stabilized against self-heating
Class 4.3 · UN2968 · Marine Pollutant
Manganese nitrate
Class 5.1 · UN2724
Manganese resinate
Class 4.1 · UN1330
Mannitan tetranitrate
Forbidden
Mannitol hexanitrate (dry)
Forbidden
Mannitol hexanitrate, wetted or Nitromannite, wetted with not less than 40 percent water, or mixture of alcohol and water, by mass
Class 1.1D · UN0133
Matches, fusee
Class 4.1 · UN2254
Matches, safety (book, card or strike on box)
Class 4.1 · UN1944
Matches, strike anywhere
Class 4.1 · UN1331
Matches, wax, Vesta
Class 4.1 · UN1945
Medical waste, category A, affecting humans, solid or Medical waste, category A, affecting animals only, solid
Class 6.2 · UN3549
Medicine, liquid, flammable, toxic, n.o.s
Class 3 · UN3248
Medicine, liquid, toxic, n.o.s
Class 6.1 · UN1851
Medicine, solid, toxic, n.o.s
Class 6.1 · UN3249
Mercaptans, liquid, flammable, n.o.s. or Mercaptan mixture, liquid, flammable, n.o.s
Class 3 · UN3336
Mercaptans, liquid, flammable, toxic, n.o.s. or Mercaptan mixtures, liquid, flammable, toxic, n.o.s.
Class 3 · UN1228
Mercaptans, liquid, toxic, flammable, n.o.s. or Mercaptan mixtures, liquid, toxic, flammable, n.o.s., flash point not less than 23 degrees C
Class 6.1 · UN3071
Mercuric arsenate
Class 6.1 · UN1623 · Marine Pollutant
Mercuric chloride
Class 6.1 · UN1624 · Marine Pollutant
Mercuric potassium cyanide
Class 6.1 · UN1626 · Marine Pollutant
Mercurous azide
Forbidden
Mercury acetate
Class 6.1 · UN1629
Mercury acetylide
Forbidden
Mercury ammonium chloride
Class 6.1 · UN1630 · Marine Pollutant
Mercury based pesticides, liquid, flammable, toxic, flash point less than 23 degrees C
Class 3 · UN2778
Mercury based pesticides, liquid, toxic
Class 6.1 · UN3012 · Marine Pollutant
Mercury based pesticides, liquid, toxic, flammable, flash point not less than 23 degrees C
Class 6.1 · UN3011
Mercury based pesticides, solid, toxic
Class 6.1 · UN2777 · Marine Pollutant
Mercury benzoate
Class 6.1 · UN1631 · Marine Pollutant
Mercury bromides
Class 6.1 · UN1634 · Marine Pollutant
Mercury compound, liquid, n.o.s
Class 6.1 · UN2024
Mercury compound, solid, n.o.s
Class 6.1 · UN2025
Mercury contained in manufactured articles
Class 8 · UN3506
Mercury cyanide
Class 6.1 · UN1636 · Marine Pollutant
Mercury fulminate, wetted with not less than 20 percent water, or mixture of alcohol and water, by mass
Class 1.1A · UN0135
Mercury gluconate
Class 6.1 · UN1637 · Marine Pollutant
Mercury iodide
Class 6.1 · UN1638 · Marine Pollutant
Mercury iodide aquabasic ammonobasic (Iodide of Millon's base)
Forbidden
Mercury nitride
Forbidden
Mercury nucleate
Class 6.1 · UN1639 · Marine Pollutant
Mercury oleate
Class 6.1 · UN1640 · Marine Pollutant
Mercury oxide
Class 6.1 · UN1641 · Marine Pollutant
Mercury oxycyanide
Forbidden
Mercury oxycyanide, desensitized
Class 6.1 · UN1642 · Marine Pollutant
Mercury potassium iodide
Class 6.1 · UN1643 · Marine Pollutant
Mercury salicylate
Class 6.1 · UN1644 · Marine Pollutant
Mercury sulfates
Class 6.1 · UN1645 · Marine Pollutant
Mercury thiocyanate
Class 6.1 · UN1646 · Marine Pollutant
Mesityl oxide
Class 3 · UN1229
Metal carbonyls, liquid, n.o.s.
Class 6.1 · UN3281
Metal carbonyls, solid, n.o.s.
Class 6.1 · UN3466
Metal catalyst, dry
Class 4.2 · UN2881
Metal catalyst, wetted with a visible excess of liquid
Class 4.2 · UN1378
Metal hydrides, flammable, n.o.s
Class 4.1 · UN3182
Metal hydrides, water reactive, n.o.s
Class 4.3 · UN1409
Metal powder, self-heating, n.o.s
Class 4.2 · UN3189
Metal powders, flammable, n.o.s
Class 4.1 · UN3089
Metal salts of methyl nitramine (dry)
Forbidden
Metal salts of organic compounds, flammable, n.o.s
Class 4.1 · UN3181
Metaldehyde
Class 4.1 · UN1332
Metallic substance, water-reactive, n.o.s
Class 4.3 · UN3208
Metallic substance, water-reactive, self-heating, n.o.s
Class 4.3 · UN3209
Methacrylaldehyde, stabilized
Class 3 · UN2396
Methacrylic acid, stabilized
Class 8 · UN2531
Methacrylonitrile, stabilized
Class 6.1 · UN3079
Methallyl alcohol
Class 3 · UN2614
Methane, compressed or Natural gas, compressed (with high methane content)
Class 2.1 · UN1971
Methane, refrigerated liquid (cryogenic liquid) or Natural gas, refrigerated liquid (cryogenic liquid, with high methane content)
Class 2.1 · UN1972
Methanesulfonyl chloride
Class 6.1 · UN3246
Methazoic acid
Forbidden
Methoxymethyl isocyanate
Class 6.1 · UN2605
Methyl 2-chloropropionate
Class 3 · UN2933
Methyl acetate
Class 3 · UN1231
Methyl acetylene and propadiene mixtures, stabilized
Class 2.1 · UN1060
Methyl acrylate, stabilized
Class 3 · UN1919
Methyl allyl chloride
Class 3 · UN2554
Methyl bromide and ethylene dibromide mixtures, liquid
Class 6.1 · UN1647 · Marine Pollutant
Methyl bromoacetate
Class 6.1 · UN2643
Methyl butyrate
Class 3 · UN1237
Methyl chloride and methylene chloride mixtures
Class 2.1 · UN1912
Methyl chloride or Refrigerant gas R 40
Class 2.1 · UN1063
Methyl chloroacetate
Class 6.1 · UN2295
Methyl chloromethyl ether
Class 6.1 · UN1239
Methyl dichloroacetate
Class 6.1 · UN2299
Methyl ethyl ketone peroxide, in solution with more than 9 percent by mass active oxygen
Forbidden
Methyl fluoride, or Refrigerant gas R 41
Class 2.1 · UN2454
Methyl formate
Class 3 · UN1243
Methyl isobutyl carbinol
Class 3 · UN2053
Methyl isobutyl ketone peroxide, in solution with more than 9 percent by mass active oxygen
Forbidden
Methyl isopropenyl ketone, stabilized
Class 3 · UN1246
Methyl isothiocyanate
Class 6.1 · UN2477
Methyl isovalerate
Class 3 · UN2400
Methyl magnesium bromide, in ethyl ether
Class 4.3 · UN1928
Methyl methacrylate monomer, stabilized
Class 3 · UN1247
Methyl nitramine (dry)
Forbidden
Methyl nitrate
Forbidden
Methyl nitrite
Forbidden
Methyl orthosilicate
Class 6.1 · UN2606
Methyl phosphonic dichloride
Class 6.1 · NA9206
Methyl phosphonous dichloride, pyrophoric liquid
Class 6.1 · NA2845
Methyl picric acid (heavy metal salts of)
Forbidden
Methyl propionate
Class 3 · UN1248
Methyl propyl ether
Class 3 · UN2612
Methyl propyl ketone
Class 3 · UN1249
Methyl trichloroacetate
Class 6.1 · UN2533
Methyl trimethylol methane trinitrate
Forbidden
Methyl vinyl ketone, stabilized
Class 6.1 · UN1251
Methylal
Class 3 · UN1234
Methylamine dinitramine and dry salts thereof
Forbidden
Methylamine nitroform
Forbidden
Methylamine perchlorate (dry)
Forbidden
Methylamine, anhydrous
Class 2.1 · UN1061
Methylamine, aqueous solution
Class 3 · UN1235
Methylamyl acetate
Class 3 · UN1233
Methylchlorosilane
Class 2.3 · UN2534
Methylcyclohexane
Class 3 · UN2296 · Marine Pollutant
Methylcyclohexanols, flammable
Class 3 · UN2617
Methylcyclohexanone
Class 3 · UN2297
Methylcyclopentane
Class 3 · UN2298
Methyldichloroarsine
Class 6.1 · NA1556
Methyldichlorosilane
Class 4.3 · UN1242
Methylene glycol dinitrate
Forbidden
Methylhydrazine
Class 6.1 · UN1244
Methylpentadienes
Class 3 · UN2461
Methylphenyldichlorosilane
Class 8 · UN2437
Methyltetrahydrofuran
Class 3 · UN2536
Methyltrichlorosilane
Class 3 · UN1250
Mines with bursting charge
Class 1.2F · UN0294
Mines with bursting charge
Class 1.2F · UN0294
Mines with bursting charge
Class 1.2F · UN0294
Mines with bursting charge
Class 1.2F · UN0294
Model rocket motor
Class 1.4S · NA0323
Model rocket motor
Class 1.4S · NA0323
Molybdenum pentachloride
Class 8 · UN2508
Monochloroacetone (unstabilized)
Forbidden