Dangerous goods testing, Test N.1 - Burning rate
Testing according to "UN Reccomendations on the transport of dangerous goods, Manual of Tests and Criteria, section 33.2.4 Test N.1: Test method for flammable solids" evaluates a materials tendency to propagate fire. The data is used for determination of safe transportation.
This service is also relevant in: Metrology, Fire safety
Service details
- Service
- UN, Manual of Tests and Criteria, section 33.2.4 Test N.1: Test method for flammable solids
- Delivery level
- Non-accredited
- Standards
UN, Manual of Tests and Criteria, section 33.2.4 Test N.1: Test method for flammable solids
- Price
- Price on tender
- Delivery time
Leadtime is communicated separately upon quotation.
- Preparations
Amount of material and sampling
These tests are suitable for solid materials, such as powders, granular and paste-like substances. The amount of material required to performed a complete test program, including both Preliminary screening test and Burning rate test, is approximately 0.5 - 1 kg.
The material should be sent in sealed containers.
- Order
Prior to testing we ask you to complete the order specification form and send this together with your order. Attach product and safety data sheet when possible.
Purpose
Dangerous goods are items or substances that can imply a risk for health, safety, property, or the environment. Some items, which may not be harmful by itself, may become a risk when combined with other substances.
Most regulations concerning dangerous goods, such as national regulations, the IMDG Code, IATA etc. are based on the UN Recommendations on the Transport of Dangerous Goods Model Regulations. The guidance document is developed by the United Nations to uniform national and international regulations.
Dangerous goods are divided into nine different classes, grouped by their physical and chemical properties. Through testing a packaging group is assigned, in accordance with the degree of danger they present. In Division 4.1:
CLASS SUBSTANCE
1. Explosive substances and articles
2. Gases
3. Flammable liquids
4.1 Flammable solids
4.2 Substances liable to spontaneous combustion
4.3 Substances which, in contact with water, emit flammable gases
5.1 Oxidizing substances
5.2 Organic peroxides
6.1 Toxic substances
6.2 Infectious substances
7. Radioactive materials
8. Corrosive substances
9. Miscellaneous dangerous substances and articles
Testing is performed according to the UN manual of Tests and Criteria - Section 33: Division 4.1 Test N.1: Test method for flammable solids. The test generates data which can be used to classify dangerous goods and as a basis for risk analysis and research.
Method
Testing is performed by applying a burner to a 250 mm unbroken strip, or powder train, of the material which rests on an impervious surface. Ignition and flame propagation is observed. Initial testing is performed according to 33.2.4.3.1 Preliminary screening test, if the material propagates combustion in a given time frame the Burning rate test, according to 33.2.4.3.2, shall be carried out. In the Burning rate test the burning time is measured and depending on how fast the flame front propagates the product is assigned a suitable packing group.
The product can be classified as "Not a flammable solid", "Flammable solid - Packing group II/Cat. 1" or "Flammable solid- Packing group III/Cat. 2".
Deliveries
The result is summarized by RISE in a written report. The report is delivered in English.