BSI PD CEN/TS 17274:2018
$167.15
Nanotechnologies. Guidelines for determining protocols for the explosivity and flammability of powders containing nano-objects (for transport, handling and storage)
| Published By | Publication Date | Number of Pages |
| BSI | 2018 | 34 |
This document provides protocol guidelines for determining explosivity and flammability characteristics of powders containing manufactured nano-objects. These explosivity and flammability characteristics are needed for safety data sheets for safe storage, handling and transport of any powder. In particular, this document will provide protocol guidelines concerning: – the determination of flammability characteristics of powders containing nano-objects with regard to sensitivity to ignition sources; – the ability of a powder containing nano-objects to generate an explosive atmosphere and the assessment of its explosion characteristics. This document is not suitable for use with recognized explosives, such as gunpowder and dynamite, explosives which do not require oxygen for combustion, or substances or mixtures of substances which may under some circumstances behave in a similar manner. Where any doubt exists about the existence of hazard due to explosive properties, it is best to seek expert advice.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 6 | 1 Scope 2 Normative references 3 Terms and definitions |
| 9 | 4 Safe handling of powders containing nano-objects 5 Preparation and characterization of samples 5.1 Receipt of sample 5.2 Characterization of the sample |
| 10 | 5.3 Preparation of sample 6 Flammability characteristics – Test methods to characterize the sensitivity to ignition sources 6.1 Test for pyrophoricity of a powder containing nano-objects 6.1.1 Test Equipment 6.1.2 Test Procedure and reporting results |
| 11 | 6.2 Flammability characteristics in layers and accumulations 6.2.1 Burning tests 6.2.1.1 General 6.2.1.2 Determination of the burning behaviour as a screening procedure 6.2.1.3 Determination of burning rate of a layer of a powder containing nano-objects |
| 12 | 6.2.2 Determination of MIT of a layer of powder containing nano-objects 6.2.2.1 Test equipment 6.2.2.2 Test procedure and reporting results 6.2.3 Determination of the spontaneous ignition behaviour of accumulations of powder containing nano-objects 6.2.3.1 Screening test procedure for self-ignition temperature and reporting results |
| 13 | 6.2.3.2 Spontaneous combustion properties of accumulations of powders containing nano-objects |
| 14 | 6.3 Flammability characteristics in clouds 6.3.1 General 6.3.2 Determination of MIT in cloud of a powder containing nano-objects – Godbert Greenwald Oven 6.3.2.1 Test equipment 6.3.2.2 Test procedure and reporting results 6.3.3 Determination of MIT in cloud of a powder containing nano-objects – BAM oven 6.3.3.1 Test equipment 6.3.3.2 Test procedure and reporting results |
| 15 | 7 Test methods for the determination of explosion characteristics 7.1 Explosivity 7.1.1 General |
| 16 | 7.1.2 Modified Hartmann apparatus (Simple screening test) 7.1.2.1 General 7.1.2.2 Test procedure and reporting results 7.1.3 Standard test in closed apparatus 7.1.3.1 General 7.1.3.2 Test procedure and reporting results with 20 L-sphere |
| 17 | 7.2 Determination of Minimum Ignition Energy (MIE) 7.2.1 General 7.2.2 Test equipment – modified Hartmann tube 7.2.3 Test procedure and reporting results 7.3 Determination of explosion characteristics 7.3.1 General |
| 18 | 7.3.2 Determination of the Lower Explosion Limit (LEL) 7.3.2.1 Test equipment 7.3.2.2 Test procedure and reporting results 7.3.3 Determination of the maximum explosion overpressure (pmax) 7.3.3.1 Test equipment 7.3.3.2 Test procedure and reporting results |
| 19 | 7.3.4 Determination of the maximum rate of explosion pressure rise (dp/dt)max 7.3.4.1 Test equipment 7.3.4.2 Test procedure and reporting results 7.3.4.3 Kmax, Kst 7.3.5 Determination of the Limiting Oxygen Concentration (LOC) 7.3.5.1 Test equipment 7.3.5.2 Test procedure and reporting results |
| 20 | 8 Test report |
| 22 | Annex A (informative)Figures of test equipment |
| 31 | Annex B (informative)Example of test report for the explosivity of aluminum nanoparticles |
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