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PT-PM2.5型恒(heng)(heng)(heng)溫(wen)恒(heng)(heng)(heng)濕稱(cheng)(cheng)重(zhong)系(xi)統是為滿足環保部新HJ836-2017《固定污染源低濃度(du)(du)(du)度(du)(du)(du)的測定重(zhong)量(liang)法(fa)》中關于采樣后稱(cheng)(cheng)量(liang)條件的要求，在恒(heng)(heng)(heng)溫(wen)恒(heng)(heng)(heng)濕環境內放置高度(du)(du)(du)天(tian)平，將要稱(cheng)(cheng)量(liang)的樣品(pin)(pin)放入(ru)恒(heng)(heng)(heng)溫(wen)恒(heng)(heng)(heng)濕箱(xiang)體內平衡24小時后再進行稱(cheng)(cheng)量(liang)。本產(chan)品(pin)(pin)解決了實驗室環境溫(wen)度(du)(du)(du)濕度(du)(du)(du)的變化對樣品(pin)(pin)稱(cheng)(cheng)重(zhong)結果的影響，該產(chan)品(pin)(pin)也用于其它對稱(cheng)(cheng)量(liang)環境要求較(jiao)高的樣品(pin)(pin)稱(cheng)(cheng)量(liang)。