JIS K7724-1986 摄影用硼酸
作者:标准资料网 时间:2024-05-06 04:30:25 浏览:9906
来源:标准资料网
【英文标准名称】:Photographicgradeboricacid
【原文标准名称】:摄影用硼酸
【标准号】:JISK7724-1986
【标准状态】:作废
【国别】:日本
【发布日期】:
【实施或试行日期】:
【发布单位】:日本工业标准调查会(JISC)
【起草单位】:Abolishment
【标准类型】:()
【标准水平】:()
【中文主题词】:照相药品;摄影材料;硼酸
【英文主题词】:photographicmaterials;photographicchemicals;
【摘要】:
【中国标准分类号】:G84
【国际标准分类号】:
【页数】:3P;A4
【正文语种】:日语
Product Code:SAE J2197
Title:Hfc-134a (R-134a) Service Hose Fittings for Automotive Air-Conditioning Service Equipment
Issuing Committee:Interior Climate Control Committee
Scope:This SAE Standard covers fittings intended for connecting service hoses, per SAE J2196, from Mobile Air-Conditioning Systems to service equipment such as manifold gauges, vacuum pumps and air-conditioning charging, recovery and recycling equipment (Figure 1).Due to similarities between English and metric thread sizes a single, unique ACME thread fitting is specified. This fitting was recommended by the Compressed Gas Association (CGA), Connection Standards Committee Task Force as one which could be qualified to meet their requirements for use and safety in a time frame consistent with the introduction of R-134a. It was selected because its unique design would reduce the likelihood of cross-treading service hoses on R-12/R-134a refrigerant storage containers and service equipment.The high and low pressure hose in SAE J2196 requires the charge coupling (used to connect service hoses to vehicle access ports) to be an integral part of the hose assembly. To allow removal of the hose from the coupling for hose replacement only, a two-piece construction with a wrench tight connection is permitted. Specifications covering this fitting are provided.【英文标准名称】:Semiconductordevices-Mechanicalandclimatictestmethods-Part20:Resistanceofplastic-encapsulatedSMDstothecombinedeffectofmoistureandsolderingheat
【原文标准名称】:半导体器件.机械和气候试验方法.第20部分:SMDs塑料囊状物抗湿气和焊接热的综合影响
【标准号】:IEC60749-20-2002
【标准状态】:作废
【国别】:国际
【发布日期】:2002-09
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC47
【标准类型】:()
【标准水平】:()
【中文主题词】:热稳定性;半导体;表面安装设备;气候试验;半导体器件;电子设备及元件;电子工程;抗湿;耐钎焊温度;环境试验;集成电路;组件;电气工程;机械试验;试验
【英文主题词】:Climatictests;Components;Electricalengineering;Electronicengineering;Electronicequipmentandcomponents;Environmentaltesting;Integratedcircuits;Mechanicaltesting;Moistureresistance;Plastics;Semiconductordevices;Semiconductors;SMD;Solderingtemperatureresistance;Surfacemounting;Surfacemountingdevices;Testing;Thermalstability
【摘要】:Appliestosemiconductordevices(discretedevicesandintegratedcircuits)-andprovidesameansofassessingtheresistancetosolderingheatofplastic-encapsulatedsurfacemountdevices.
【中国标准分类号】:L40
【国际标准分类号】:31_080_01
【页数】:49P;A4
【正文语种】:英语
