This Malaysian Standard specifies the general provisions and the divisions of flammable solids; substances liable to spontaneous combustion; substances which, in contact with water emit flammable gases (Class 4 substances) under the classification system of MS 1513 : Part 2.
NOTES:
1. Where the term water reactive is used in this standard, it refers to a substance which in contact with water emits flammable gas.
2. Because of the different properties exhibited by dangerous goods within Division 4.1 and 4.2, it is impracticable to establish a single criterion for classification in either of these divisions. Tests and criteria for assignment to the three divisions of Class 4 are addressed in this standard and in the United Nations Recommendations on the Transport of Dangerous Goods – Manual of Tests and Criteria – 1999 edition.