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如何理解测试标准要求条件的正负偏差

发布于:2019-10-15T18:10:25 阅读次数:715

直播吧手机版CESHIBIAOZHUNZHONGTONGCHANGMINGQUEGUIDINGDECESHITIAOJIAN,BINGYUNXUZHENGFUFANWEINEIDEBODONGPIANCHA,BIRUZAIISO 4892-2CESHIBIAOZHUNZHONG,BAOHANLEYIXIACESHITIAOJIAN

直播吧手机版FUZHAODU:0.51 ± 0.02 W/(m2 nm)

HEIBIAOWENDU:65±3℃

直播吧手机版ZAIDALIANGDECESHIGUOCHENGZHONG,JINGCHANGYOUKEHUCUOWUDELIJIEZHEIXIEZHENGFUFANWEINEIDEBODONGPIANCHA,MEINIANWOMENDOUHUISHOUDAOKEHUDEZIXUN,TAMENRENWEIZHEIMIAOSHUDESHISHIYANXIANGNEIDEJUNYUNXING。RANER,SHISHISHANGBINGFEIRUCI。YOUSHI,ISO 17025SHENHEYUANHUIFANZHEIGECUOWU,BINGZAISHIYANSHISHENHEQIJIANZIXINGCELIANGSHIYANXIANGNEITIAOJIANDEJUNYUNXING。ZHEIXIEWUJIEDABUFENQINGKUANGXIASHIYINWEIWEINENGYUEDUYOUGUANBIAOZHUNDEQUANWENSUOZAOCHENGDE。BENWENJIANGJIESHAOJIGEBIAOZHUN,BINGTAOLUNZHEIXIESHEDINGTIAOJIAN,ZHENGFUPIANCHADEZHENZHENGHANYI。

运行波动不等于均匀性

SHAOBUFENRENJIANGZHEIXIEGONGCHAJIESHIWEIDEJUNYUNXINGYAOQIU。ZHEIYIWEIZHEBAOLUZAICELIANGQUYUNEIDESUOYOUDIANDOUZAIGONGCHAFANWEINEI。SHISHISHANGZAISUOYOUDENAIHOUHEFUSHICESHIBIAOZHUNZHONG,ZHEIXIEGONGCHADOUBUSHIJUNYUNXINGDEBIAOZHENG。

ZHEIXIEGONGCHADEZHENZHENGHANYISHI,FUZHAODU、WENDUHUOSHIDUKONGZHIXITONG,BIXUNENGGOUZAISHEDINGDIANNEIBAOCHIWENDINGDETIAOJIAN。ASTM JIANGQIDINGYIWEI“YUNXINGBODONG”。

运行波动,n-在实验室加速老化箱中,在传感器均衡点的正偏差和负偏差。

直播吧手机版TONGCHANGQINGKUANGXIA,CESHICANSHUYOUYIGEANZHUANGZAILAOHUASHIYANXIANGZHONGDECHUANGANQIJINXINGCELIANGHEKONGZHI。ZHEIXIEGONGCHAZHUYAOMIAOSHUDESHIZAIJIASULAOHUACESHIHEYANWUFUSHICESHIGUOCHENGZHONG,SHEDINGDIANSHANGDEWENDINGXING。YISHANGSHUISO 4892-2WEILI。YIDANSHIYANTIAOJIANDADAOWENDINGZHUANGTAI,WENDUZAIRENYISHIJIANNEIDOUBUYINGGAICHAOGUO68℃HUOZHEXIAJIANGDAO62℃YIXIA。

因此这些标准偏差不代表均匀性的要求,更不是指用户可把温度设定在62℃-68℃范围内。

ASTM,ISO和OEM标准中关于偏差的描述

ZAIMIAOSHUYUNXINGBODONGDEYAOQIUZHEIYIDIANSHANG,YOUXIEBIAOZHUNBIQITABIAOZHUNZUODEGENGHAO。ZAIDADUOSHUQINGKUANGXIA,MEIGUOCAILIAOSHIYANXIEHUIBIAOZHUNDEYUYANGENGQINGXI,GENGRONGYILIJIE。ZHEIZHUYAOSHIYINWEIASTMYOUYIGEZHUANMENDENAIHOULAOHUAJISHUWEIYUANHUIZIXIKAOLVZHEIXIEWENTI。

ZAIDADUOSHUZHUYAODEASTMNAIHOULAOHUACESHIBIAOZHUNZHONGDOUKEYIZHAODAOYUNXINGBODONGDEJIESHAO。LIRU,ASTM G154BAOHANYIGETIWEI“BAOLUTIAOJIANXIADEYUNXINGBODONG”DEBIAOGE。ZUOLERUXIAMIAOSHU“WENDINGXINGKONGZHIYIXIAOZHUNCHUANGANQIDUSHUDEZUIDAYUNXUPIANCHAWEIZHIBIAO。”ASTM G151BAOHANYIGELEISIDEBIAOGE,BINGZAIFUJIANA3ZHONGYOUJIGEDUANLUOTAOLUNLEYUNXINGBODONG。G151HAIBIAOSHI,ZAIPENSHUIGUOCHENGZHONG,YUNXINGBODONGYAOQIUBUSHIYONG。

直播吧手机版ZAIYANWUFUSHICESHIBIAOZHUNZHONG,YEYOUXIANGSIDEQINGKUANG。ASTM B117YOUYIXIAMIAOSHU“WENDU-ZHONGDEBAOLUQUYUYINGGAIBAOCHIZAI35±2℃(95±3°F)”。MEIGESHEDINGDIANJIPIANCHA,BIAOSHISHIYANXIANGZHONGSHEDINGTIAOJIANDEWENDINGXINGKONGZHI,BUDAIBIAOZHENGGEZHONGTIAOJIANDEYIZHIXING。

ISO LAOHUACESHIBIAOZHUNZAIZHEIGEWENTISHANGMEIYOUYIZHIDEMIAOSHU,YINWEIMEIGELAOHUACESHIBIAOZHUNDOUSHIYOUBUTONGDEWEIYUANHUIBIANXIEDE,DANTAMENSHIYONGLEBUTONGDESHUYULAIMIAOSHUYUNXINGBODONG。

直播吧手机版ISO 4892-2ZAIZHUSHIZHONGGUIDINGLEYIXIANEIRONG:“FUZHAODU、HEIBIAOSHEDINGWENDUDEZHENGFUPIANCHASHIZAISHEDINGTIAOJIANXIA,YOUGUANCANSHUYUNXUBODONGFANWEI,ERBUSHIZHIZAISHEDINGFANWEINEIDERENYIWENDU。”HUANYANZHI,65±3°CBINGBUYIWEIZHENINKEYIBAWENDUSHEDINGZAI62°CHE68°CZHIJIAN。

直播吧手机版BUXINGDESHI,ISO 9227ZHONGMEIYOUXIANGXIJIESHIZHENGFUPIANCHADEHANYI,ZHEIYOUKENENGZAIXIAYICIBIAOZHUNXIUDINGZHONGYOUSUOGAIBIAN。RANER,JINGUANBIAOSHUFANGSHIBUTONG,ISO 16701HELEISIDEFord & Volvo XUNHUANYANWUFUSHICESHIZHONGMIAOSHULEZHEIGEWENTI。

YIXIASHIISO 16701ZHONGMIAOSHUDESHIYANXIANGDEWENDUHESHIDUXINGNENGYAOQIU:“ZAI35℃TIAOJIANZHONG,SHIDUCONG50%SHANGSHENGDAO95%,XIANGDUISHIDUPIANCHAZUIDAYUNXU±4%,DUIYINGWENDUPIANCHAYAOQIUWEI±0.8℃。ZAI7DAO8XIAOSHIDEWENDINGTIAOJIANZHONG,YINGCAIYONG±2%DEXIANGDUISHIDUPIANCHAJINGDU。DUIYINGWENDUDEPIANCHAYAOQIUWEI±0.4℃”

ZAISHANGSHUMIAOSHUZHONG,“SHUNSHIZUIDAPIANCHA”YU“CAOZUOBODONG”SHIXIANGTONGDEGAINIAN,YOUYIGEFUJIADEYAOQIUBUBAOHANZAIQITABIAOZHUNZHONG,JI“JINGDU”ZHEIGESHUYUDESHIYONG,ZHEIGEGAINIANLEISIYUYUNXINGBODONG。TAZHIDESHISUIZHESHIJIANDETUIYI,YANWUSHIYANXIANGNENGGOUJIANGWENDUHEXIANGDUISHIDUKONGZHIZAISUOXUDIANSHANG。ZAISHANGSHUMIAOSHUZHONG,“±2%BIAOSHIDESHIJINGDU”。LIRU,RUGUOXIANGDUISHIDUKONGZHIYAOQIUWEI50%,ZESHIYANQIJIANXIANGDUISHIDUBIXUKONGZHIZAI48%HE52%ZHIJIAN。

那关于均匀性呢?

JIRANWOMENYIJINGTAOLUNLESHEDINGDIANFANWEINEIDEYUNXINGBODONGDE,NEIGUANYUJUNYUNXINGNI?XUYAOZHUYIDESHI,ZAIBIAOZHUNSHIJIEZHONGRENGRANCUNZAIYIXIEJUNYUNXINGXINGYAOQIU。DANZHEIXIESHUZISHIZHENDUILAOHUASHIYANXIANGDEXINGNENGERZHIDINGDE,ERBUSHIZHENDUIYAOSHIYONGDETEDINGSHEDINGZHI。LIRU,ASTM G151GUIDINGLEYAOQIUDEFUZHAODUJUNYUNXING,DANYUTEDINGSHIYANTIAOJIANWUGUAN。YINCI,DANGKEHUXUNWENTONGYIXINGSHI,ZHONGYAODESHIXUNWENTAMENZAINALIYUEDUYAOQIU。RUGUOTAYUYIGESHEDINGDIANXIANGGUAN,TAKENENGSHIYIGEYUNXINGBODONGYAOQIU,ERBUSHIYIZHIXINGYAOQIU!