WMW laboratory is able to perform test to classify dangerous goods according to the United National Recommendations on the safety guidelines for dangerous goods transportation. Any product not identified properly and packaged for safe transport can pose a threat to human life or environment. Their accidental release can result in explosions and fire or other catastrophes. Accurate testing provides the protection against the risk to life and properties.

For the purpose of dangerous goods testing. Our service covers the following:

This test is designed to determine the applicability of Class 3 Flammable liquids along with the packing group. The flash point is measured according to the closed cup flash point tester.

This test is designed to determine the applicability of Class 4.1 Flammable solids along with the packing group. It consists of a preliminary screening test on deposited samples with a rectangular cross-section and a main test on those with a triangular cross-section.

This test is designed to determine the applicability of Class 4.2 Substances liable to spontaneous combustion (liquids or solids) along with the packing group. A liquid sample is dropped onto a filter paper in a porcelain cup to see if it ignites or burns within five minutes. Likewise, a solid sample is dropped onto a non-combustible surface from a height of 1 m to see if it ignites or burns within five minutes.

This test is designed to determine the applicability of Class 4.2 Self-heating substances along with the packing group. A solid sample is put into a wire mesh cube and then heated in an air circulating oven to see if spontaneous ignition occurs or if the temperature of the sample exceeds the oven temperature by 60 degC within 24 hours. Two wire mesh cubes (25 mm or 100 mm) are used to test at temperature of 140 degC, 120 degC, or 100 degC to determine the self-heating temperature.

This test is designed to determine the applicability of Class 4.3 Substances which in contact with water emit flammable gases (liquids or solids) along with the packing group. A sample is dropped into water or onto a filter paper which is floated on the surface of distilled water at 20 degC to see it ignites. At the same time, the amount of flammable gases evolved on contact with water is measured.

This test is designed to determine the applicability of Class 5.1 Oxidizing substances along with the packing group. Tests are conducted on the substance to be evaluated mixed with dry fibrous cellulose in mixing ratios of 1:1 and 4:1, by mass, of sample to cellulose. The burning time of the mixtures are compared with the standard 3:7, 3:2, and 2:3 mixture, by mass, of potassium bromate to cellulose for determining oxidizing properties.