SAE J381 Windshield Defrosting Systems Test Procedure and Performance Requirements--Trucks, Buses, and Multipurpose Vehi

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Product Code:SAE J381
Title:Windshield Defrosting Systems Test Procedure and Performance Requirements--Trucks, Buses, and Multipurpose Vehicles
Issuing Committee:Truck And Bus Windshield Wipers And Climate Control Comm
Scope:This SAE Recommended Practice establishes uniform test procedures and performance requirements for the defrostingsystem of enclosed cab trucks, buses, and multipurpose vehicles. It is limited to a test that can be conducted on uniformtest equipment in commercially available laboratory facilities. Current engineering practice prescribes that for laboratoryevaluation of defroster systems, an ice coating of known thickness be applied to the windshield and left- and right-handside windows to provide more uniform and repeatable test results, even though under actual conditions such a coatingwould necessarily be scraped off before driving. The test condition, therefore, represents a more severe condition thanthe actual condition, where the defroster system must merely be capable of maintaining a cleared viewing area.Because of the special nature of the operation of most of these vehicles (where vehicles are generally kept in a garage orwarmed up before driving) and since defrosting under steady-state over-the-road operations is the main concern, testconditions have been adopted which assume that the engine is warm before the vehicle is driven.There are two options for producing hot coolant in this recommended practice. Testing using these two approaches onthe same vehicle will not necessarily provide identical results. Many vehicle models are offered with optional engines,and each engine has varying coolant temperatures and flow rates. If the test is being conducted to compare theperformance of one defroster design to another defroster design, then the external coolant source approach (Test A) willyield the most comparable results. If the test is being conducted to validate the defroster installation on a specific vehiclemodel with a specific engine, then using the engine to heat the coolant (Test B) will be more appropriate.This document will be reviewed and revised as technological progress in vehicle defroster test procedure requires.
基本信息
标准名称:电工电子产品环境试验设备基本参数检定方法 温度变化试验设备
中标分类: 电工 >> 电工综合 >> 基础标准与通用方法
替代情况:被GB/T 5170.2-1996代替
发布日期:1900-01-01
实施日期:1986-01-01
首发日期:1900-01-01
作废日期:1900-01-01
出版日期:1900-01-01
页数:8页
适用范围

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所属分类: 电工 电工综合 基础标准与通用方法
基本信息
标准名称:塑料垃圾桶通用技术条件
英文名称:General technical specifications for plastic dustbin
中标分类: 工程建设 >> 城乡规划与市政工程 >> 园林绿化与市容卫生
ICS分类: 建筑材料和建筑物 >> 建筑物 >> 其他建筑物
发布部门:中华人民共和国住房和城乡建设部
发布日期:2008-06-03
实施日期:2008-11-01
首发日期:
作废日期:
提出单位:住房和城乡建设部标准定额研究所
归口单位:住房和城乡建设部城镇环境卫生标准技术归口单位上海市市容环境卫生管理局
起草单位:北京市环境卫生设计科学研究所、上海奥图环卫设备有限公司
起草人:吴文伟、张海兵、张援方、荆云峰等
出版社:中国标准出版社
出版日期:2008-11-01
页数:16页
适用范围

本标准规定了塑料垃圾桶的结构、分类和型号、要求、试验方法、检验规则、标志、包装和运输、贮存。 本标准适用于容积为120L 和240L 的两轮移动式塑料垃圾桶、其他类塑料垃圾桶参照执行。

前言

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目录

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引用标准

下列文件中的条款通过本标准的引用而成为本标准的条款。凡是注日期的引用文件,其随后所有的修改单(不包括勘误的内容)或修订版均不适用于本标准,然而,鼓励根据本标准达成协议的各方研究是否可使用这些文件的最新版本。凡是不注日期的引用文件,其最新版本适用于本标准。
GB/T1633—2000 热塑性塑料维卡软化温度(VST)的测定
GB/T2411 塑料邵氏硬度试验方法
GB/T2828.1 计数抽样检验程序 第1部分:按接收质量限(AQL)检索的逐批检验抽样计划

所属分类: 工程建设 城乡规划与市政工程 园林绿化与市容卫生 建筑材料和建筑物 建筑物 其他建筑物