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The modular approach to certification according to directive 93/465/EEC

Wednesday, 1 May 2013 PDF icon The modular approach to certification according to directive 93/465/EEC
We never had occasion in this newsletter to speak about the Modular Approach of Directive 93/465/EEC concerning the various phases of the conformity assessment procedures and the rules for the affixing and use of the CE conformity marking, to be applied in the technical harmonization directives. This directive, issued in 1993 but still valid today, defines both the basic rules regarding the marking of CE products, both the basic rules concerning the procedures for assessing the conformity of a product.

The risk based inspection for explosion-protected equipment

Monday, 1 April 2013 PDF icon The risk based inspection for explosion-protected equipment
Since some time, the scientific and technical community is talking about the Risk Based Inspection, a process of analysis to define optimized plant plan maintenance, overcoming the classical approach of preventive maintenance at a fixed date. This methodology, which begins to have great applications in petrochemical sector, optimizes: the frequency of inspection; the methods of inspection; the extent of inspections depending on a risk.

A IECEx App to identify the certificated equipment

Friday, 1 March 2013 PDF icon A IECEx App to identify the certificated equipment
IECEx, the IEC system for the certification of equipment that can be used in environments with a potentially explosive atmosphere, has launched the first mobile application to show international certification for equipment used in explosive atmospheres. It’s available for Apple and Android devices for free and can be downloaded from Apple Store e Google Play.

The flame paths

Friday, 1 February 2013 PDF icon The flame paths
The most critical part of an ‘Ex d’ flameproof enclosure is the flame path. In order to understand what a flame path is and how it works we need to review briefly the principle on which is based the security of the ‘Ex d’ (flame proof) method of protection. This is the oldest method of protection that exists, the first used and still one of the safest because it is based on a very simple technology and, therefore, hardly fallible.

Danger zones in pharmaceutical industries

Tuesday, 1 January 2013 PDF icon Danger zones in pharmaceutical industries
Production processes in companies that produce pharmaceutical products through mixing, emulsifying and chemical reaction of organic compounds, may generate environmental conditions that create potentially explosive atmospheres. Substances in liquid state are very often used during manufacturing process. They can reach temperature which emit flammable vapors or temperatures above the flash point.

The use of materials at low temperatures

Saturday, 1 December 2012 PDF icon The use of materials at low temperatures
Winter has arrived and temperatures are low everywhere. We had the first snow and the thermometer fell many degrees below the zero. Winter is a great season for those who can afford the luxury of living in warm chalets and leave the house only for the pleasure of skiing on beautiful slopes. Unfortunately, life forces us to work and, for those involved in the management or maintenance of chemical and petrochemical plants, winter is a difficult time of the year, during which faults are more frequent because of the low temperatures that make, in general, all materials more fragile.

Other directives applicable to Atex equipment

Thursday, 1 November 2012 PDF icon Other directives applicable to Atex equipment
In the last newsletter, we talked about the two ATEX directives. In particular, we have treated the ATEX Directive 94/9/EC which must be applied to equipment used in areas with potentially explosive atmosphere. A topic almost never discussed is the relationship between the ATEX Directive and the other existing product Directives. In principle, if a product falls within the scope of other Directives at the same time, all Directives must be applied in parallel to meet all the requirements. In this newsletter, therefore, we'll give a brief overview on other Directives that may need to be met by a explosion-protected equipment.

The two ATEX standards and their differences

Monday, 1 October 2012 PDF icon The two ATEX standards and their differences
People speak very often about ATEX Standards in general terms but we’ve realized that the topic is not always entirely clear. It’s worthwhile, therefore, to reflect a little on what they are and how they should be used. What is Atex? ATEX stands for "Explosive Atmosphere". Those who follow this newsletter know what an explosive atmosphere is. Therefore, here we will only give a hint. An explosive atmosphere is a mixture of flammable substances that may be in the form of gas, vapor, mists or dusts.

Explosion-protection in cereals storage areas

Saturday, 1 September 2012 PDF icon Explosion-protection in cereals storage areas
During the summer, the farms are reaping the crops and the products of a year's work of nature are storage in the granaries. The increasingly large size of the warehouses and the mechanization of the collection, handling and storage of wheat and its derivatives, have led us to consider the dangers of explosion of dust clouds that can occur in the presence of sparks or electrical arcs. We regard as the silos for the storage of cereals (corn, wheat, rice, soybeans, flour, etc..) in which loading, unloading and other processes can generate explosive atmospheres.

Explosion-protection in biogas plants

Sunday, 1 July 2012 PDF icon Explosion-protection in biogas plants
In modern biogas plants, biodegradable organic substrates are fermented such as grass, straw, slurry, manure, biodegradable waste, residues of food production, food scraps and grease. For this reason, airtight containers are filled with organic materials. In this environment, in absence of oxygen and with organic components in fermentation, the bacteria produce biogas. The biogas obtained is used to produce electricity and heat.

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