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generating static electricity when using CO2 inert agent

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generating static electricity when using CO2 inert agent ( generating-static-electricity-when-using-co2-inert-agent )

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Treatment of cylinders and containers in scrap yards A serious accident occurred in a scrap yard while two workers started cutting up an LPG cylinder with an electric saw. The cylinder exploded, causing serious burn injuries to both workers and one of them died later. At the subsequent investigation, the employees declared that it has been a common practice to use saws or other tools to cut cylinders, even when they contained a gas. Obviously, these circumstances are extremely dangerous and not in line with any member company standard. To avoid recurrence, SAG recommends the following. Gas companies and cylinder owners • Cylinders must be emptied, inerted and rendered useless by cutting a hole, destroying neck threads, etc. preferably at the gas company site. If this is done at a site of a contracted company, the member company must ensure that the transport and the actual work is done in a proper way. • The work must be risk assessed and done in a safe and environmentally sound way. Consider the possible creation of hazardous wastes and its disposal. • Acetylene cylinders must not be sent to scrap yards. They contain acetone (or DMF) and a porous mass, sometimes with a few percent of asbestos. The cylinders must be treated in installations specially authorised to carry out this process. • Salesmen dealing with scrap yards, agents and distributors should be informed of the proper scrapping methods. • Records should be kept of the cylinder and container numbers retired from service. • The member company should ensure that the scrapping company has received appropriate training and information about the risks according to this Newsletter. Scrap yards • Scrap yards and other companies who might scrap cylinders should be urged neither to accept nor to destroy cylinders and containers that may contain residual gas. It is important to emphasise that all cylinders with mounted valve should be considered as containing residual gas, despite appearing to be empty. References EN 1968, Transportable gas cylinders – Periodic inspection and testing of seamless steel gas cylinders EN 1802, Transportable gas cylinders – Periodic inspection and testing of seamless aluminium alloy gas cylinders EN 1803, Transportable gas cylinders – Periodic inspection and testing of welded carbon steel gas cylinders EIGA Doc. 5/00 – Guidelines for the management of waste acetylene cylinders SAG NL 76/00/E – Page 2 All technical publications of EIGA or under EIGA’s name, including Codes of practice, Safety procedures and any other technical information contained in such publications were obtained from sources believed to be reliable and are based on technical information and experience currently available from members of EIGA and others at the date of their issuance. While EIGA recommends reference to or use of its publications by its members, such reference to or use of EIGA’s publications by its members or third parties are purely voluntary and not binding. Therefore, EIGA or its members make no guarantee of the results and assume no liability or responsibility in connection with the reference to or use of information or suggestions contained in EIGA’s publications. EIGA has no control whatsoever as regards, performance or non performance, misinterpretation, proper or improper use of any information or suggestions contained in EIGA’s publications by any person or entity (including EIGA members) and EIGA expressly disclaims any liability in connection thereto. EIGA’s publications are subject to periodic review and users are cautioned to obtain the latest edition. 2 EUROPEAN INDUSTRIAL GASES ASSOCIATION AVENUE DES ARTS 3 – 5!B-1210 BRUSSELS PHONE+3222177098!FAX+3222198514!E-mail:info@eiga.org -www.eiga.org

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