恒(heng)溫(wen)恒(heng)濕(shi)(shi)(shi)實(shi)(shi)驗(yan)(yan)室(shi)(shi)是將某(mou)一實(shi)(shi)驗(yan)(yan)室(shi)(shi)通(tong)過某(mou)些專用(yong)(yong)設(she)備和技術方(fang)法 ，使其(qi)室(shi)(shi)內溫(wen)濕(shi)(shi)(shi)度(du)符合(he)某(mou)一調濕(shi)(shi)(shi)和試驗(yan)(yan)用(yong)(yong)標(biao)準(zhun)大氣(qi)的(de)(de)要求。恒(heng)溫(wen)恒(heng)濕(shi)(shi)(shi)實(shi)(shi)驗(yan)(yan)室(shi)(shi)是生(sheng)產(chan)企(qi)業(ye)的(de)(de)產(chan)品(pin)質量檢驗(yan)(yan)與控制和流通(tong)領域里的(de)(de)商品(pin)質量檢驗(yan)(yan)把關的(de)(de)基礎設(she)施。恒(heng)溫(wen)恒(heng)濕(shi)(shi)(shi)實(shi)(shi)驗(yan)(yan)室(shi)(shi)廣泛(fan)應(ying)用(yong)(yong)于(yu)棉紡(fang)、毛紡(fang)、化(hua)纖、紙張、包裝(zhuang)、煙草(cao)生(sheng)產(chan)企(qi)業(ye)以(yi)及質檢、纖檢等部(bu)門，按照ISO和GB有關標(biao)準(zhun)規定，紡(fang)織品(pin)、紡(fang)織原料、紙張、紙品(pin)和紙箱等 商品(pin)的(de)(de)質物(wu)理項目(mu)的(de)(de)檢驗(yan)(yan)必(bi)需在標(biao)準(zhun)大氣(qi)條件下進行。除了常規溫(wen)濕(shi)(shi)(shi)度(du)的(de)(de)恒(heng)溫(wen)恒(heng)濕(shi)(shi)(shi)實(shi)(shi)驗(yan)(yan)室(shi)(shi)，還有其(qi)它特殊的(de)(de)5-18℃低(di)溫(wen)、30-80℃高(gao)溫(wen)、相(xiang)對濕(shi)(shi)(shi)度(du)要求小于(yu)40%RH低(di)濕(shi)(shi)(shi)、相(xiang)對濕(shi)(shi)(shi)度(du)高(gao)于(yu)80%RH的(de)(de)高(gao)濕(shi)(shi)(shi)等特殊要求的(de)(de)恒(heng)溫(wen)恒(heng)濕(shi)(shi)(shi)實(shi)(shi)驗(yan)(yan)室(shi)(shi)。