ISO's technical committee for fasteners (ISO/TC 2) intends to increase the number of standards in its domain from 140 to 160 in coming months. That do-main includes commonly used industrial fasteners, such as nuts, bolts, screws, washers, rivets, and pins. It does not include fasteners used in specialized areas, such as surgery and aerospace. The group plans to write additional standards to cover more characteristics of various fasteners. Among other things, new standards will be set for tolerances, mechanical and functional properties, testing, terminology, and markings. ISO/TC 2 also is considering a document to help ensure higher acceptable quality levels--measured in parts per million--for fasteners that can be used interchangeably in many products. ISO/TC 2 officials want to consider standards for types of fasteners that in the past had been given low priorities. Gunther Hellwig, secretary for ISO/TC 2, says that adoption by European countries of most of ISO's fastener standards as European standards pro-mises eventual world-wide acceptance.
The implementation of a new diesel fuel standard in the US has considerably improved the environmental performance of diesel vehicles. The Environmental Protection Agency (EPA) says that the new ultra-low sulfur diesel (ULSD) fuel has combined with other improved technologies to reduce diesel's particulate matter (PM) emissions by 99%.
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