atex for heavy metal powder

[Cashflow_]

Good morning.

argument enough niche but maybe I find some expert

For a two-diligence verification, you have to make a verification that a machine I'd like to use doesn't need to be atex because there's no danger of explosive atmosphere. the only source of risk is due to a tungsten powder that could generate this atmosphere if nebulized.

I know that the machine manufacturer has provided hundreds of installations in Europe ever with the athex, that from a technical point of view this powder does not get sprayed because it is heavy (tungsteno, high density) and that on the same sds of the powder it is indicated that it is not at risk of explosion. However, in the same sds, there is also written as usual to "parate" that powders generally are at risk, and because of this note hse consultants ask for further verification.

I do not know how to approach the problem, I imagine that you can do a verification with the data of the powder (known physical properties) to give evidence that the risk of nebulization is missing for weight or something like that.

Does anyone have experience on a validation strategy in this sense? exists some kind of calculation or consideration that I can assess in order to state that physical properties are ok?

Thank you!

 

[TETRASTORE]

premix that I am not an expert in tungsten powder treatment, but it is necessary to highlight that even if by itself the powder in its normal state is heavy and is not at risk of fire, however there is the possibility of its flammability if finely divided as reported also in this page.
this possibility can occur in the company, for example, in case possible, of a payment of the material and for this reason, in data sheet security (sds) are given the recommendations to address this eventuality:
- sweep and spread into cover containers suitable for disposal.
- avoid dust formation.
- if necessary pre-humidify to avoid dust dispersion.
- remove all ignition sources.
- use anti spark instruments and explosion proof equipment.
I think that consultants need insurance that, while there is a remote possibility that dust is finely subdivided and therefore with risk of fire, both operators with training/training and the company with adequate equipment, are prepared both to avoid or to face this eventuality.

 

[infallibile_GF]

I don't know, but at the proposition of tungsten and dust, it seems that it causes infertility in males. I would worry more about this than about the explosiveness of such dust.