翻訳と辞書 Words near each other ・ Coal Creek Covered Bridge ・ Coal Creek Historic Mining District ・ Coal Creek Patrol Cabin ・ Coal Creek Serpentinite (Texas geology) ・ Coal Creek Station ・ Coal Creek Township, Montgomery County, Indiana ・ Coal Creek War ・ Coal Creek, Boulder County, Colorado ・ Coal Creek, British Columbia ・ Coal Creek, Fremont County, Colorado ・ Coal Creek, Indiana ・ Coal Creek, Victoria ・ Coal Creek, Washington ・ Coal Digger ・ Coal drop ・ Coal dust ・ Coal Exchange ・ Coal Exchange (London) ・ Coal Face ・ Coal Fire, Alabama ・ Coal forest ・ Coal Fork, West Virginia ・ Coal Gap School ・ Coal gas ・ Coal gasification ・ Coal gasification commercialization ・ Coal Glen mine disaster ・ Coal Grove, Ohio ・ Coal Harbour ・ Coal Harbour Water Aerodrome Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Coal dust ： ウィキペディア英語版 Coal dust Coal dust is a fine powdered form of coal, which is created by the crushing, grinding, or pulverizing of coal. Because of the brittle nature of coal, coal dust can be created during mining, transportation, or by mechanically handling coal. ==Risks== The Occupational Safety and Health Administration (OSHA) has set the legal limit (Permissible_exposure_limit) for coal dust exposure in the workplace as 2.4 mg/m3 (5% SiO2) over an 8-hour workday. The National_Institute_for_Occupational_Safety_and_Health (NIOSH) has set a Recommended_exposure_limit (REL) of 1 mg/m3 (measured by MSHA) or 0.9 mg/m3 (measured by ISO/CEN/ACGIH) over an 8-hour workday. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Coal dust」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.