CLP / REACH and UN DG - Tests for Transport Classification

Laboratory Testing TÜV SÜD Schweiz Process Safety

Laboratory Testing TÜV SÜD Schweiz Process Safety




In Switzerland TÜV SÜD Process Safety is your expert in the fields of

  • Registration under REACH
  • Transport classification

Our services at a glance

Classification for Transport and GHS and CLP


UN-Class 1, Explosivity

  • UN-Test 1(a), 2(a): UN GAP Test (ability to propagate a detonation or sensitivity to shock)
  • UN-Test 1(b), 2(b):Koenen test (thermal sensitivity)
  • UN-Test 1(c), 2(c): Time/ Pressure Test (deflagration capacity after ignition)
  • UN-Test 3(a): BAM Fallhammer (sensitiveness to impact)
  • UN-Test 3(a): BAM Fallhammer, determination of the limiting impact energy between 1J and 50J (sensitiveness to impact)
  • UN-Test 3(b): BAM Reibapparatur, Sensitiveness to Friction

UN-Class 3, Flammable Liquids

  • UN-Test: Flash Point
  • UN-Test L.2: Sustained combustibility test

UN-Class 4.1, Flammable Solids

  • UN-Test N.1: Readily combustible solids / Burning rate test

UN-Class 4.1, Self-reactive Substances

  • “Complete test program for classification into classes under division 4.1 self-reactive substances“
  • UN-Test A.5: UN GAP Test (ability to propagate a detonation)
  • UN-Test C.1: Time/ Presssure Test (ability to propagate a deflagration under confinement)
  • UN-Test C.2: Deflagration Test (ability to propagate a deflagration)
  • UN-Test E.1: Koenen test (effect of intense heating under high confinement)
  • UN-Test E.2: Dutch Pressure Vessel Test (effect of intense heating under defined confinement)
  • UN-Test H.3: Isothermal Storage Test (SADT based on isothermal measurements) SADT at 75°C, screening
  • UN-Test H.4: Heat Accumulation Storage Test (SADT in the Dewar, for non-volatile substances)
    SADT in the Dewar at 75°C, screening

UN-Class 4.2, Combustible Compounds Sample

  • UN-Test N.2: Pyrophoric properties of solids
  • UN-Test N.3: Pyrophoric properties of liquids
  • UN-Test N.4: Test method for self-heating substances (isoperibolic test in the 1 L or 15,6 mL wire basket) Bowes-Cameron-Cage Test
    If only 1L at 140°C

UN-Class 4.3, Release of Flammable Gases on Contact with Water

  • UN-Test N.5: Release of flammable gases on contact with water

UN-Class 5.1, Oxidizing Substances

  • UN-Test O.1: Test for oxidizing solids
  • UN-Test O.2: Test for oxidizing liquids
  • UN-Test O.3: Gravimetric test for oxidizing solids

UN-Class 8, Corrosiveness against Metals

  • UN Test C.1: Corrosive properties of liquids



A.1 Melting point
A.2 Boiling point
A.3 Relative density
A.4 Vapor pressure
A.5 Surface tension
A.6 Solubility in water
A.7 Fat solubility
A.8 Partition coefficient
A.9 Flash point (liquids)
A.10 Flammability (solids)
A.13 Pyrophoric properties
A.12 Flammability (evolution of gas in contact with water)
A.14 Solids and liquids explosive potential
A.15 Auto-ignition temperature (liquids)
A.16 Relative self-ignition temperature (solids)
A.17 Oxidizing properties (solids)
A.18 + A.19 Molecular weight distribution of polymers
A.20 Solution, extraction behaviour of polymers in water
A.21 Oxidizing properties (liquids)
OECD 113 Thermal stability


Registration under REACH

directed at

Persons responsible for the registration of new products in the chemical and pharmaceutical industries.

the benefit for you

Your complete physico-chemical dossier from one single source. (Council Refulation n° 440/2008)

our services

As an accredited laboratory, we can determine the following data of your products


Transport classification of dangerous materials

The testing center of the Swiss branch of TÜV SÜD offers a wide range of tests for the classification of goods according to the UN Recommendations on Transportation of Dangerous Goods (Orange Book). With the introduction of the Globally Harmonized System (GHS) in the EU this classification scheme will progressively replace the current EU classification of chemicals.

The following list summerizes the dangerous properties with a short description of the tests for classification. In the second column, the current labels for transport classification are shown, whereas the new GHS labels are in the third column.

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