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PART III

CLASSIFICATION PROCEDURES,

TEST METHODS AND CRITERIA

RELATING TO

CLASS 3, CLASS 4,

DIVISION 5.1 AND CLASS 9

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CONTENTS OF PART III NOTE 1: The country or organisation of origin of each test method is indicated in brackets after each test name.

NOTE 2: All test methods given in Part III of the manual are recommended tests as only one test is given for each property. Section Page 30. INTRODUCTION TO PART III ......................................................................................... 323 30.1 PURPOSE ............................................................................................................................. 323 30.2 SCOPE ............................................................................................................................. 323 31. CLASSIFICATION PROCEDURES, TEST METHODS AND CRITERIA

RELATING TO FLAMMABLE AEROSOLS OF CLASS 2 ........................................... 325 31.1 PURPOSE ............................................................................................................................. 325 31.2 SCOPE ............................................................................................................................. 325 31.3 CLASSIFICATION PROCEDURES...................................................................................... 325 31.4 IGNITION DISTANCE TEST FOR SPSRAY AEROSOLS.................................................. 330 31.5 ENCLOSED SPACE IGNITION TEST ................................................................................. 334 31.6 AEROSOLS FOAM FLAMMABILITY TEST...................................................................... 339 32. CLASSIFICATION PROCEDURES, TEST METHODS

AND CRITERIA RELATING TO LIQUID DESENSITIZED EXPLOSIVES AND FLAMMABLE LIQUIDS OF CLASS 3.......................................... 341

32.1 PURPOSE ............................................................................................................................. 341 32.2 SCOPE ............................................................................................................................. 32.3 CLASSIFICATION PROCEDURES...................................................................................... 341 32.4 TEST METHODS FOR DETERMINING FLASH POINT AND VISCOSITY................................................................................................................ 344 32.5 TEST METHODS FOR DETERMINING SOLVENT SEPARATION AND SUSTAINED COMBUSTION.................................................................................... 346 32.5.1 Test L.1 Solvent separation test (UNO) ................................................................................. 346 32.5.2 Test L.2 Sustained combustion test (UNO)............................................................................ 347 33. CLASSIFICATION PROCEDURES, TEST METHODS

AND CRITERIA RELATING TO CLASS 4...................................................................... 351 33.1 INTRODUCTION................................................................................................................... 351 33.2 DIVISION 4.1 ........................................................................................................................ 351 33.2.1 FLAMMABLE SOLIDS ......................................................................................................... 351 33.2.1.1 Purpose ............................................................................................................................. 351 33.2.1.2 Scope ............................................................................................................................. 351 33.2.1.3 Classification procedure for readily combustible solids.......................................................... 351 33.2.1.4 Test N.1 Test method for readily combustible solids (UNO)................................................. 353 33.2.2 (Reserved) ............................................................................................................................. 356 33.2.3 SOLID DESENSITIZED EXPLOSIVES................................................................................ 356

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CONTENTS OF PART III (continued) Section Page 33.3 DIVISION 4.2 ........................................................................................................................ 357 33.3.1 SUBSTANCES LIABLE TO SPONTANEOUS COMBUSTION......................................... 357 33.3.1.1 Purpose ............................................................................................................................. 357 33.3.1.2 Scope ............................................................................................................................. 357 33.3.1.3 Classification procedure for substances liable to spontaneous combustion............................ 357 33.3.1.4 Test N.2 Test method for pyrophoric solids (UNO)........................................................... 360 33.3.1.5 Test N.3 Test method for pyrophoric liquids (UNO) ......................................................... 361 33.3.1.6 Test N.4 Test method for self-heating substances (UNO).................................................. 362 33.4 DIVISION 4.3 ........................................................................................................................ 365 33.4.1 SUBSTANCES WHICH IN CONTACT WITH WATER EMIT FLAMMABLE GASES ........................................................................................................ 365 33.4.1.1 Purpose ............................................................................................................................. 365 33.4.1.2 Scope ............................................................................................................................. 365 33.4.1.3 Classification procedure for substances which in contact with water emit flammable gases .................................................................................................. 365 33.4.1.4 Test N.5 Test method for substances which in contact with water emit flammable gases (UNO) .................................................................... 366 34. CLASSIFICATION PROCEDURES, TEST METHODS AND CRITERIA RELATING TO OXIDIZING SUBSTANCES OF DIVISION 5.1 .................................................................................... 369 34.1 PURPOSE ............................................................................................................................. 369 34.2 SCOPE ............................................................................................................................. 369 34.3 CLASSIFICATION PROCEDURE........................................................................................ 369 34.4 TEST METHODS FOR OXIDIZING SUBSTANCES.......................................................... 370 34.4.1 Test O.1 Test for oxidizing solids (UNO) .......................................................................... 370 34.4.2 Test O.2 Test for oxidizing liquids (UNO) ........................................................................ 374 35. Reserved for classification procedures, test methods and criteria relating to Class 6 ............................................................................................. 381 36. Reserved for classification procedures, test methods and criteria relating to Class 7 ............................................................................................. 385 37. CLASSIFICATION PROCEDURES, TEST METHODS AND CRITERIA RELATING TO SUBSTANCES OF CLASS 8.................................... 385 37.1 PURPOSE ............................................................................................................................. 385 37.2 SCOPE ............................................................................................................................. 385 37.3 CLASSIFICATION PROCEDURE........................................................................................ 385 37.4 TEST METHODS FOR CORROSION TO METALS........................................................... 385 37.4.1 Introduction ............................................................................................................................. 385 37.4.1.1 Test C.1 Test for determining the corrosive properties of liquids and solids that may become liquid during transport as dangerous goods of Class 8, packing group III. ................................................................................................ 385

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CONTENTS OF PART III (continued)

Section Page 38. CLASSIFICATION PROCEDURES, TEST METHODS AND CRITERIA RELATING TO CLASS 9 ..................................................................... 389 38.1 INTRODUCTION................................................................................................................... 389 38.2 AMMONIUM NITRATE FERTILIZERS CAPABLE OF SELF-SUSTAINING DECOMPOSITION ......................................................................... 389 38.2.1 Purpose ............................................................................................................................. 389 38.2.2 Scope .................................................................................