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全(quan)自動 低濃度(du) 恒(heng)溫(wen)恒(heng)濕稱(cheng)重(zhong)系統(tong) 大顆粒,恒(heng)溫(wen)恒(heng)濕稱(cheng)重(zhong)系統(tong)內(nei)風速(su)不(bu)影響(xiang)樣品(pin)的存放(fang)，取拿等，恒(heng)溫(wen)恒(heng)濕采用(yong)上送(song)風下吸風的循環方式，保(bao)證箱(xiang)(xiang)內(nei)溫(wen)濕度(du)均(jun)勻，箱(xiang)(xiang)門設(she)置全(quan)框透明(ming)窗口，用(yong)以觀(guan)測(ce)室內(nei)試樣的變化。觀(guan)察窗采用(yong)有機板，具有透明(ming)、隔(ge)熱、不(bu)易(yi)產生(sheng)蒸(zheng)汽結霜等優點；并配置硅膠(jiao)手套，人工(gong)操作過程(cheng)中保(bao)證恒(heng)溫(wen)恒(heng)濕箱(xiang)(xiang)內(nei)溫(wen)濕度(du)波動符合HJ836-2017《固定(ding)污(wu)染源廢(fei)氣低濃度(du)顆粒物的測(ce)定(ding)重(zhong)量(liang)法》標(biao)準(zhun)要求，天(tian)平稱(cheng)量(liang)不(bu)受影響(xiang)。

高(gao)精度恒(heng)(heng)(heng)(heng)溫恒(heng)(heng)(heng)(heng)濕(shi)稱(cheng)重系統(tong) 粉末稱(cheng)量 檢測(ce)機構；恒(heng)(heng)(heng)(heng)溫恒(heng)(heng)(heng)(heng)濕(shi)稱(cheng)重系統(tong)內風(feng)速不影響樣品(pin)的存放(fang)，取拿(na)等，恒(heng)(heng)(heng)(heng)溫恒(heng)(heng)(heng)(heng)濕(shi)采用上(shang)送風(feng)下吸風(feng)的循環(huan)方式(shi)，保(bao)證箱(xiang)內溫濕(shi)度均勻，箱(xiang)門設置全框(kuang)透明窗口，用以觀測(ce)室(shi)內試樣的變化。觀察(cha)窗采用有(you)機板，具(ju)有(you)透明、隔熱、不易產生(sheng)蒸汽結(jie)霜(shuang)等優點；并(bing)配置硅膠手套，人工操作過程(cheng)中保(bao)證恒(heng)(heng)(heng)(heng)溫恒(heng)(heng)(heng)(heng)濕(shi)箱(xiang)內溫濕(shi)度波動符合(he)HJ836-2017《固定污染源廢氣低濃(nong)度顆粒(li)物的測(ce)定重量法》標(biao)準要(yao)求，天平稱(cheng)量不受影響