Mines British Standards

British Standard, BS3406 Recommendations for gravitational liquid sedimentation methods for powders and suspensions, 345 Groves, M.J. (1968), Proc. Soc. Analyt. Chem., 5(8), 165-166, 345 Hartig, H.E., Oristad, N.I. and Foot, NJ. (1951), Univ. Minn. Mines Exp. 

The British Standards concerned with hazardous areas were first published in the 1920s and were concerned with the connection of electrical apparatus in the mining industry. Since those early days many national and international standards, as well as codes of practice, have been published to inform the manufacture, installation and maintenance of electrical equipment in all hazardous areas. 

Commonly used standards in the United States are Tyler screens and US Standard screens (American Society for Testing and Materials). Similar standards in the United Kingdom are British Standard screens and Institute of Mining and Metallurgy (IMM) screens. The dimensions of the screens are widely published and it is a simple matter to assemble PSD curves such as those in Rgs 7.13 and 7.14. A recent correlation mathematizing all these standards may still be useful for drawing comparisons [34]. The correlating equation takes the form... 

British Standards Institution (London), Code of practice for the selection, installation and maintenance of electrical apparatus for use in potentially explosive atmospheres (other than mining applications or explosive processing and manufacture), BS 5345 Part 1, Basic requirements for all parts of the code... 

British Standards Institution, BS EN 60079-14, Electrical apparatus for potentially explosive gas atmospheres, Part 14, Electrical installations in hazardous areas (other than mines), BSI, London (1997)... 

Source From BS 5345, Selection, Installation and Maintenance of Electrical Apparatus for Use in Potentially Explosive Atmospheres (Other than Mining Applications or Explosives Processing and Manufacture) Part 1 General Recommendations, British Standards, 1989. 

Standards or specifications issued by individual companies are not considered to be of national status, however large or multi-national the concern might be. Specifications issued by local authorities and nationalised industries would be in the same bracket. Organizations such as Rapra Technology (The Rubber and Plastics Research Association), The British Rubber Manufacturers Association, the Tun Abdul Razak Research Centre and the Institute of Materials, Minerals and Mining do not issue standards. 

The I.M.M. Series and British Engineering Standards Association Series—The I.M.M. Series was developed in 1907 by the Institute of Mining and Metallurgy of England. This series is mainly for laboratory use, and was developed on the theory that the diameter of the wire... 

Oynobels. A series of British mining explosives, of which the older type passed the Rotherham Gallery Test and was on the British Permitted List K chlorate 27, NG 32.5, Collod Cotton 0.7, Amm oxalate 29.5 woodmeal 10.3%. Its swing by Ballistic Pendulum was 2.6l inches compared with 3.27 for "Standard 60% Gelignite (Power... 

The standard weapon appeared to be the British Lee-En-field rifle. There were a number of small machine pistols of local manufacture, short-range weapons not very accurate beyond 50 yards. I saw Bren guns (automatic rifles) and a few heavy machine guns. Mines and other demolition material were also homemade and seemed of good quality. Communication equipment included a number of pack sets and walkie-talkies, and radio communication was constant between all major military headquarters. There was some motor transport, but no truck-mounted radio transmitters or power plants. 

When miners worked as apprentices, master miners could adjust their learning styles to the needs of their apprentices and the specific conditions. Young miners could learn a variety of methods by working closely with different miners. When British Coal introduced standardized training schemes, however, these new procedures could not take into account individual differences in knowledge and experience. One miner claimed that safety standards were created by safety managers who were totally separate from the safety culture at the mines. 

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