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GB12350-2009《小功率电动机的安全要求》标准于2009年9月30日发布,将于2010年8月1日起正式实施执行。GB 12350-2009标准参考了国内外标准中关于电动机安全方面的内容,新版标准与上一版本在章节顺序、内容上都有较大的变化。新版标准的实施对于小功率电动机生产企业的影响较大,为帮 相似文献
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本文接上期内容,从认证检测的角度针对GB12350新版和原版标准差异进行深入解析,帮助小功率电动机生产企业顺利完成标准转换工作。5.非金属部件标准第14章"非金属部件"根据最新的材料试验方法对非金属材 相似文献
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小功率电动机性能标准(GB/T5171-2002)目前正在修订中,本文对标准需要修订的几个问题进行探讨。一、覆盖范围应进行调整按照目前国标GB/T5171-2002《小功率电动机通用技术条件》的规定,所谓小功率电动机是指折算至1500r/min时连续额定功率不超过1.1kW的异步电动机、同步电动机、直流电动机和交流换向器电动机。 相似文献
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我国每年为工业泵类配套的电机总功率占生产电动机总容量的45%左右.离心泵、轴流泵的实际运行效率不高.故国家标准GB/T16666—1996《泵机组液体输送系统节能监测方法》规定了离心泵效率不得低于51%(电机功率≥250kW)。依据该标准我们对企业在正常生产实际运行工况下的离心式清水泵(1S125—100—250)进行节能监测。 相似文献
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国家玩具新标准GB6675—2003《国家玩具安全技术规范》于2004年10月1日正式实施,旧标准GB6675—1986《玩具安全》即作废,本文就新旧标准的主要区别作了分析与探讨。 相似文献
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随着2003年国家标准GB6722--2003中华人民共和国《爆破安全规程》的出台和整个国民环保意识、安全意识、法制意识的大幅度提升。全国爆破行业对安全评估的要求越来越普及,测试要求也越来越高。成都中科测控公司值此适时地推出了TC-4850爆破测振仪。它可以把爆破瞬间产生的各种振动信号转换为可读、可记录、可判断的爆破安全标准量值。 相似文献
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GB/T24421.2实施以来,对促进服务业标准化工作发挥了巨大的作用,进一步探讨服务业组织标准体系的定位和作用,完善国家标准应用的方法,可以帮助服务业组织加深对该项国家标准的理解。 相似文献
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为了评定胶鞋、运动鞋外底留痕程度,按照GB/T24129-2009《胶鞋、运动鞋外底不留痕试验方法》要求,研制了胶鞋、运动鞋外底不留痕试验机,本文介绍了该试验机的设计指标、基本结构、用途和测量方法。结果表明,该试验机能满足GB/T24129-2009《胶鞋、运动鞋外底不留痕试验方法》标准的要求,可广泛用于制鞋行业及检测机构,具有较大的推广价值。 相似文献
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GB 17930-2016包含国Ⅳ(已废止)、国V和Ⅵ的车用汽油技术要求和试验方法,GB18351-2015包含国Ⅳ(已废止)、国V的车用乙醇汽油(E10)技术要求和试验方法;2个标准(现行有效的技术要求)均按研究法辛烷值分为89号、92号、95号和98号4个牌号,都强调企业有条件生产和销售98号汽油时应符合对应规定的技术要求;GB17930-2016中的国Ⅵ10%馏出温度、苯、芳烃、烯烃等项目质量指标高于GB18351-2015中国V对应项目的质量指标.车用乙醇汽油(E10)燃烧比普通汽油更完全,可降低尾气中的污染物排放. 相似文献
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电子工业洁净厂房试运行阶段综合性能检测是保证其洁净区洁净度等关键参数满足生产需求的重要措施,本文结合GB 50472—2008《电子工业洁净厂房设计规范》和GB 50591—2010《洁净室施工及验收规范》相关要求,对电子工业洁净厂房试运行阶段洁净区的洁净度、静压差、截面风速、换气次数等关键参数检测要点进行梳理和分析,以期为电子工业洁净厂房洁净区检测与自检工作提供参考。 相似文献
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Although the state laws requiring motor vehicles to give way to pedestrians on crosswalks and at intersections are quite uniform from state to state, the degree of enforcement of these laws varies enormously. Driver behavior seems to reflect the level of enforcement rather than the text of the law. There is a tendency at all levels of government toward lax enforcement. 相似文献
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Since national standard General Rules of Science and Technology Research Projects Evaluation (GB/T 22900-2009) was released and implemented in 2009, it has attracted wide attention and been recognized in various circles of society. 相似文献
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In 1986 the federal government expanded its program of company inspections for enforcement of motor carrier safety regulations. We find that many parts of these inspections are unrelated to the safety performance of firms. Never the less, reinspection of firms found to be unsatisfactory in a previous inspection does appear to bring about a substantial improvement in their safety performance. However, such firms represent a small fraction of the industry, and the probability of being inspected is very low. Thus, the program does not appear to have resulted in a detectable improvement in the accident rate of the industry. 相似文献
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按照新的金属材料布氏硬度试验方法标准GB/T 231.1—2009对某硬度值为106 HBW10/1000的标准硬度块进行了布氏硬度测试,并对布氏硬度测试结果的不确定度进行了评定;同时还对新标准中关于测试结果不确定度评定的一些细节进行了说明,对新标准中某些不确定度分量的评定方法提出了自己的观点。结果表明:所测硬度块的布氏硬度测试结果为(107.2±5.0)HBW10/1000,k=2。 相似文献
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Durbin DR Smith R Kallan MJ Elliott MR Winston FK 《Accident; analysis and prevention》2007,39(3):524-529
CONTEXT: Coverage and enforcement provisions of safety belt use laws vary by state. Most laws cover drivers and passengers age 16 and above. "Primary" enforcement laws allow police to stop and ticket a motorist for a safety belt law violation. With "secondary" enforcement laws, ticketing can only occur in the presence of another traffic infraction. Given the lower rates of restraint use among teen drivers and their passengers, the effect of primary enforcement laws on the restraint use of young teen passengers is of particular interest. OBJECTIVE: To compare restraint use by 13-15 year olds passengers in motor vehicle crashes in states with primary versus secondary enforcement safety belt laws. METHODS: Cross-sectional study of 3953 crashes involving 5372 children, representing 54,226 children aged 13-15 years in 41,198 crashes of insured vehicles in 16 states and Washington, DC between December 1, 1998 and December 31, 2004, with data collected via insurance claims records and a telephone survey. RESULTS: Non-use of restraints by 13-15 year olds was 7.2% (95% CI 4.3-10.1%) greater in secondary enforcement states (10.8%) as compared to states with primary enforcement laws (3.6%). After controlling for driver's age and restraint status and the seating row of the occupant, a 13-15 year olds was over twice as likely to be unrestrained in a secondary enforcement state as compared to a primary enforcement state (adjusted RR=2.2, 95% CI 1.5-3.1). CONCLUSIONS: States considering primary enforcement provisions to their restraint laws should consider the potential benefits these laws may have to all occupants in the vehicle, particularly young adolescents who are nearing driving age. 相似文献