SAE J1174 Operator Ear Sound Level Measurement Procedure for Small Engine Powered Equipment

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Product Code:SAE J1174
Title:Operator Ear Sound Level Measurement Procedure for Small Engine Powered Equipment
Issuing Committee:Small Engine And Powered Equipment Committee
Scope: This SAE Recommended Practice establishes the instrumentation and procedure to be used in measuring the operator ear sound level for engine powered equipment under 15 kW (20 bhp). The sound levels obtained by using this procedure are representative of the sound levels generated by the equipment under typical operating conditions. It is intended to include equipment such as lawn mowers, snow blowers, and tillers. It is not intended to include equipment designed primarily for operation on highways or within factories or buildings, or vehicles such as motorcycle, snowmobiles, and pleasure motorboats that are covered by other SAE Standard or Recommended Practice. This procedure does not cover chain saws. This SAE Recommended Practice may also be used when measuring the operator ear sound level of similar equipment powered by electricity or other power sources.
Rationale: This SAE Recommended Practice establishes the instrumentation and procedure to be used in measuring the operator ear sound level for engine powered equipment under 15 kW (20 bhp). The sound levels obtained by using this procedure are representative of the sound levels generated by the equipment under typical operating conditions. It is intended to include equipment such as lawn mowers, snow blowers, and tillers. It is not intended to include equipment designed primarily for operation on highways or within factories or buildings, or vehicles such as motorcycle, snowmobiles, and pleasure motorboats that are covered by other SAE Standard or Recommended Practice. This procedure does not cover chain saws. This SAE Recommended Practice may also be used when measuring the operator ear sound level of similar equipment powered by electricity or other power sources.
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Product Code:SAE AMS5671
Title:Nickel Alloy, Corrosion and Heat-Resistant, Bars, Forgings, and Rings, 72Ni - 15.5Cr - 0.95Cb - 2.5Ti - 0.70Al - 7.0Fe, Consumable Electrode or Vacuum Induction Melted, 1800 °F (982 °C) Solution Heat Treated, Precipitation Hardenable
Issuing Committee:Ams F Corrosion Heat Resistant Alloys Committee
Scope:This specification covers a corrosion and heat-resistant nickel alloy in the form of bars, forgings, flash welded rings, and stock for forging or flash welded rings.【英文标准名称】:OpticalFiberMacrobendAttenuation
【原文标准名称】:光纤宏弯衰减试验
【标准号】:ANSI/EIA/TIA-455-62-B-2003
【标准状态】:现行
【国别】:美国
【发布日期】:2003
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:衰减;纤维光学;光波导
【英文主题词】:Attenuationfactors;Attenuations;Dimensions;Electricalengineering;Fibreoptics;Flexibility;Losses;Measurement;Measuringtechniques;Opticalwaveguides;Properties;Sensitivity;Telecommunications
【摘要】:Establishesuniformrequirementsformeasuringmacrobendingsensitivity
【中国标准分类号】:M33
【国际标准分类号】:33_180_10
【页数】:
【正文语种】:英语