本文件规定了人体皮肤与机器或工件热表面接触时发生烫伤的烫伤阈值,描述了用于防止皮肤烫伤的热表面温度限值的确定方法。
本文件未规定特定机器或工件的热表面温度限值,未给出防止疼痛的数据。
本文件适用于接触过程中表面温度基本保持不变(见4.1)且接触时间不小于0.5 s的接触。
本文件不适用于大约全身皮肤10%及以上的大面积皮肤和热表面接触的情况。
本文件也不适用于超过头部皮肤10%的接触,或导致面部重要部位烫伤的接触。
注:在某些情况下,接触热表面的结果可能更严重,例如:
——造成呼吸道不畅的烫伤;
——全身皮肤10%及以上的大面积烫伤可能因体液损失而损伤循环系统;
——头部或全身大比例的受热,即使在没有烫伤的情况下,可能引起不能接受的热应激反应。
定价: 43元 / 折扣价: 37 元 加购物车
This standard specifies the running mode specific fuel consumption limits and measurement methods for small spark ignition engines (referred to hereinafter simply as "engines") of non-road mobile machinery employing gasoline and the like as fuel.
This standard is applicable to (but not be limited to) engines of non-road mobile machinery with net power output at or below 19 kW:
—lawn mowers;
—chainsaws;
—generators;
—water pumps;
—brush cutters;
—tillers;
—rice transplanters;
—hedge trimmers;
—blowers;
—snow blowers;
—pressure washers;
—vibrating compactors;
—smoothing machines.
This standard is not applicable to engines for the following applications:
—engines used to propel boats;
—engines used for underground mining or underground mining equipment;
—engines used in emergency rescue equipment;
—recreational vehicles, such as: snowmobiles, off-road motorcycl
定价: 588元 / 折扣价: 500 元 加购物车
本标准规定了以汽油等为燃料的非道路移动机械用小型点燃式发动机(以下简称“发动机”)工况法燃料消耗率限值和测量方法。
本标准适用于(但不限于)下列非道路移动机械用净功率不大于19 kW的发动机:
——草坪机;
——油锯;
——发电机;
——水泵;
——割灌机;
——微耕机;
——插秧机;
——绿篱机;
——吹风机;
——扫雪机;
——高压清洗机;
——振动平板夯;
——抹平机。
本标准不适用于下列用途的发动机:
——用于驱动船舶行驶的发动机;
——用于地下采矿或地下采矿设备的发动机;
——应急救援设备用发动机;
——娱乐用车辆,例如:雪橇,越野摩托车和全地形车辆;
——为出口而制造的发动机;
——为终端设备出口而制造的发动机。
定价: 38元 / 折扣价: 33 元 加购物车
This national standard specifies the limits and measurement methods for weighted specific fuel consumption and specific oil consumption of non-road diesel engines.
This national standard is applicable to non-road diesel engines (hereinafter referred to as diesel engines) with power ratings of 560 kW and below,used e.g. for land applications (excluding road vehicles,tri-wheel and low-speed goods vehicles),ships,agricultural tractors,forestry machinery,construction equipment,generating sets and water pumping sets,excluding the marine diesel engiens fueled with heavy oil.
NOTE:The diesel engines exported from China shall be subject to the standards and regulations on the limits for specific fuel consumption specified by the importing countries or regions.
定价: 360元 / 折扣价: 306 元 加购物车
This standard specifies terms and definitions,technical requirements,etc.for hazardous substance in the air of heat treatment work place.
This standard applies to occupational exposure limits for hazardous substance in the air of heat treatment work place during heat treatment.
定价: 312元 / 折扣价: 266 元 加购物车