BLS team invites you to the 4th edition of SAFETY EXPO 2019 The free reference event in Italy for fire prevention and health and safety in the workplace. September 18th and 19th, at Bergamo Fiera STAND 39
Oxygen, nitrogen and carbon dioxide are a few examples: their high kinetic energy produces random movements, giving this substance the advantage of moving from one place to another without hindrance.
Acetone, toluene and hexane are some examples. Another example occurs when water is boiled: in this case it is called water vapour.
Inertisation limits the action of oxygen inside the system to prevent the formation of explosive atmospheres. Inertisation units are used when it is necessary to avoid:
If materials are processed, whose exhalations combined with oxygen in the air result in the formation of an easily flammable mixture, any possible risk of explosion must be prevented. In practice, air is replaced by inert gas.
Nitrogen, argon and helium are some examples and present some peculiar risks:
A substance that conveys a pungent, recognisable odour is generally added to the gases, thus increasing the level of safety for those exposed.
However, in the presence of inert gases and oxygen deficiency (less than 18%), inhaled air ceases to be breathable to the point of causing asphyxiation and death to those exposed to it.
Chlorine, phosgene, sulphur dioxide, hydrochloric acid, hydrogen sulphide, nitrogen dioxide, ozone and ammonia are among the most important irritant gases. Hydrogen sulphide is also a potent cellular toxin, which blocks the cytochrome system and inhibits cellular respiration.
A common exposure involves domestic mixing of ammonia with detergents containing bleach; this releases chloramine (NH2Cl), a highly toxic gas that when it comes into contact with mucous membranes decomposes and generates hydrochloric acid, which is toxic and corrosive, and free radicals, which are carcinogenic.
Acute exposure to toxic gases generally characterises industrial accidents, which occur as a result of the release of large quantities of the substance over a short period of time.
In the environments of this sector, it is possible for gases such as carbon dioxide, nitrogen and argon to be released and the related risk of asphyxia to occur. Asphyxiation appears to be the leading cause of death in this type of confined space accident.
Oxygen consumption can occur while carrying out activities in confined spaces in the absence of adequate indoor air renewal.
To date, the toxic gases recognised as such under RD No. 147/1927 are as follows:
To select the right protection, it is necessary to know the chemical nature of the pollutant by ensuring that the oxygen level is above 17%.
For more information on the nominal protection factor (FPN) and the PPE selection read the last paragraph of our article on Health Risks of Welding: PPE selection.
The European Standard EN 14387:2004+A1:2008 defines protection against gases and vapours according to the following table:
The products that BLS offers you to protect your health from toxic gases and vapours are half masks and full face masks with a wide range of models that vary in terms of type of connection, materials and method of use.
Single-filter products are associated with the BLS 400 universal connection filter series. Bi-filter products are associated with the BLS 200 filter series with b-lock connection, the bayonet connection made by BLS.
BLS team invites you to the 4th edition of SAFETY EXPO 2019 The free reference event in Italy for fire prevention and health and safety in the workplace. September 18th and 19th, at Bergamo Fiera STAND 39
Eventi di marzo Scopri gli eventi BLS di Marzo 30 marzo - 01 aprile PESTMED 2022 La Fiera Evento per i professionisti del Pest Management e della Sanificazione in Italia, si terrà nella città di Bologna. Noi saremo lì, vieni a trovarci al padiglione 32, stand n. A27bis. Ti aspettiamo! Questa fiera è […]
Covid19 almost reached us - coming 60 kilometres from our company - on 21 February 2020. And from then on our life was changed forever. 2020 was, for us, a year on the frontline of the Covid19 emergency. During the Coronavirus pandemic, we changed from a “niche” company to being at the centre of a production system of essential goods
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via dei Giovi, 41 – 20032 Cormano (MI) - Italia
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