Validation of the UN Test Method N.5
| Autor: | Marika Rosenberg, Klaus-Dieter Wehrstedt, Marcus Malow, Heike Michael-Schulz |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
Flammable liquid
Hazard (logic) Hydrogen business.industry General Chemical Engineering Gas evolution reaction Environmental engineering Energy Engineering and Power Technology chemistry.chemical_element Test method Management Science and Operations Research Industrial and Manufacturing Engineering chemistry.chemical_compound chemistry Control and Systems Engineering Flammable gas Gravimetric analysis Safety Risk Reliability and Quality Process engineering business Food Science UN Recommendations on the Transport of Dangerous Goods |
| DOI: | 10.13140/2.1.3204.4806 |
| Popis: | Many substances react with water in such a way that flammable gases are formed. For transport issues this reaction may possess a considerable hazard especially if the cargo is wetted by rain or by water from other sources. In the UN Recommendations on the Transport of Dangerous Goods these kinds of problems are addressed. The UN test N.5 “Test method for substances which in contact with water emit flammable gases” corresponds to this hazard. Classification according to the test method is done by measurement of the gas evolution rate of the flammable gas by any suitable procedure. At BAM a gravimetric approach is used to measure the gas evolution rate. In this paper we present the evaluation of the apparatus by means of an absolute calibration routine utilizing a reaction where a known amount of gas is produced as well as the evaluation of important parameters influencing the gas evolution rate using different substances. It can be shown that the apparatus is capable of measuring absolute gas volumes as low as 6 mL with an acceptable error of about 17% as determined from the reaction of Mg with demineralized water. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|