氣體的分類有多種形式，按用途分、按化學性質分等。而本節所說的分類并不是這個范疇。本節所述的氣體分類確切地說應該是氣體裝瓶的分類。就是說，氣瓶已經被分為深圳氣體氣瓶、高壓液化氣體氣瓶、低壓液化氣體氣瓶和溶解氣體氣瓶等幾類。當然氣瓶的這種分類是由氣體裝瓶后的性質和狀態所決定的。但所有需要瓶裝的氣體應該裝入哪一類氣瓶，類別怎樣劃分。這一問題對于氣瓶的設計、制造、使用、管理有著重要的意義。
　　我國關于氣瓶的法規共發布過一個“規定”、三個“規程”。在1961年由勞動部、公安部、化工部聯合發布的《氣瓶安全管理暫行規定》(簡稱《e1規定》)沒有對瓶裝氣體提山分類的要求。在1965年由勞動部發布的《氣瓶安全監察規》(簡稱《65規程》)提出廠壓縮氣體和液體氣體的概念，但沒有明確的定義。在1979年發布的《氣瓶安全監察規程》(簡稱《79規程》)中對壓縮氣體和液化氣體給出了定義，并將液化氣體又分成了高壓液化氣體和低壓液化氣體。在*發布的《氣瓶安全監察規程》(簡稱《89規程》)將壓縮氣體改稱氣體，而將壓縮氣體做為瓶裝氣體的總稱。

      這(zhe)樣一種(zhong)分(fen)(fen)(fen)類(lei)(lei)(lei)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)目(mu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)是(shi)(shi)為(wei)(wei)(wei)(wei)(wei)盡量(liang)與(yu)(yu)(yu)國際(ji)上(shang)(shang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)分(fen)(fen)(fen)類(lei)(lei)(lei)方式相(xiang)(xiang)一致(zhi)，即將(jiang)(jiang)(jiang)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)分(fen)(fen)(fen)成三類(lei)(lei)(lei)：氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)、液(ye)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)和溶(rong)(rong)解氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)；四大組：氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)、高壓(ya)(ya)(ya)液(ye)化(hua)(hua)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)、低(di)壓(ya)(ya)(ya)液(ye)化(hua)(hua)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)和溶(rong)(rong)解氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)，但(dan)這(zhe)與(yu)(yu)(yu)我們的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)習(xi)慣有(you)(you)些(xie)差異。按習(xi)慣的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)理解，壓(ya)(ya)(ya)縮(suo)只是(shi)(shi)一種(zhong)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)積的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)變化(hua)(hua)，不(bu)(bu)(bu)應有(you)(you)物理性(xing)質(zhi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)改(gai)(gai)變。將(jiang)(jiang)(jiang)壓(ya)(ya)(ya)縮(suo)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)做為(wei)(wei)(wei)(wei)(wei)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)裝(zhuang)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)總(zong)稱(cheng)(cheng)(cheng)，使(shi)其(qi)包括(kuo)(kuo)已有(you)(you)物理性(xing)質(zhi)改(gai)(gai)變的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)液(ye)化(hua)(hua)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)和溶(rong)(rong)解氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)，在(zai)(zai)概(gai)念上(shang)(shang)有(you)(you)些(xie)勉(mian)強。而水久氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)是(shi)(shi)人們在(zai)(zai)深冷(leng)技術和設(she)備(bei)不(bu)(bu)(bu)完善時(shi)(shi)，認為(wei)(wei)(wei)(wei)(wei)某些(xie)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)是(shi)(shi)不(bu)(bu)(bu)可(ke)(ke)液(ye)化(hua)(hua)而產(chan)生的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)一個(ge)錯誤(wu)概(gai)念。但(dan)實際(ji)上(shang)(shang)沒(mei)有(you)(you)一種(zhong)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)是(shi)(shi)不(bu)(bu)(bu)可(ke)(ke)液(ye)化(hua)(hua)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)，因(yin)此講(jiang)也(ye)就(jiu)沒(mei)有(you)(you)一種(zhong)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)是(shi)(shi)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)了，所以(yi)(yi)(yi)，不(bu)(bu)(bu)可(ke)(ke)對(dui)(dui)其(qi)定(ding)(ding)義從(cong)字(zi)面上(shang)(shang)加以(yi)(yi)(yi)解釋。我們可(ke)(ke)按《89規(gui)程(cheng)(cheng)》的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)講(jiang)析中(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)觀點來(lai)理解它：“將(jiang)(jiang)(jiang)79規(gui)程(cheng)(cheng)中(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)壓(ya)(ya)(ya)縮(suo)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)改(gai)(gai)為(wei)(wei)(wei)(wei)(wei)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)原因(yin)之(zhi)一還是(shi)(shi)因(yin)為(wei)(wei)(wei)(wei)(wei)稱(cheng)(cheng)(cheng)為(wei)(wei)(wei)(wei)(wei)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)更為(wei)(wei)(wei)(wei)(wei)符合氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)內(nei)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)實際(ji)情況。在(zai)(zai)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)使(shi)用(yong)(yong)溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)范(fan)(fan)(fan)圍(wei)(wei)(wei)，這(zhe)類(lei)(lei)(lei)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)在(zai)(zai)充裝(zhuang)、儲(chu)存、運(yun)輸(shu)、使(shi)用(yong)(yong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)過程(cheng)(cheng)中(zhong)，不(bu)(bu)(bu)發生氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)液(ye)相(xiang)(xiang)變，總(zong)是(shi)(shi)呈(cheng)現氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)態。相(xiang)(xiang)對(dui)(dui)液(ye)化(hua)(hua)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)，對(dui)(dui)這(zhe)類(lei)(lei)(lei)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)稱(cheng)(cheng)(cheng)為(wei)(wei)(wei)(wei)(wei)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)更突出其(qi)主要特(te)征。實際(ji)上(shang)(shang)對(dui)(dui)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)裝(zhuang)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)分(fen)(fen)(fen)類(lei)(lei)(lei)，就(jiu)是(shi)(shi)從(cong)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)設(she)計、使(shi)用(yong)(yong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)安全和經濟(ji)角(jiao)度(du)(du)(du)(du)考(kao)慮(lv)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)。將(jiang)(jiang)(jiang)所有(you)(you)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)裝(zhuang)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)分(fen)(fen)(fen)為(wei)(wei)(wei)(wei)(wei)在(zai)(zai)正(zheng)(zheng)常(chang)(chang)(chang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)環(huan)(huan)(huan)(huan)境(jing)(jing)溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)范(fan)(fan)(fan)圍(wei)(wei)(wei)內(nei)可(ke)(ke)發生相(xiang)(xiang)變和不(bu)(bu)(bu)能(neng)發生相(xiang)(xiang)變的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)兩種(zhong)(不(bu)(bu)(bu)包括(kuo)(kuo)溶(rong)(rong)解氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti))。因(yin)為(wei)(wei)(wei)(wei)(wei)在(zai)(zai)等容的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)情況下發生相(xiang)(xiang)變，其(qi)壓(ya)(ya)(ya)力(li)(li)將(jiang)(jiang)(jiang)產(chan)生突變。這(zhe)種(zhong)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)公(gong)稱(cheng)(cheng)(cheng)工(gong)作(zuo)壓(ya)(ya)(ya)力(li)(li)將(jiang)(jiang)(jiang)考(kao)慮(lv)發生相(xiang)(xiang)變時(shi)(shi)可(ke)(ke)能(neng)產(chan)生的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)壓(ya)(ya)(ya)力(li)(li)，這(zhe)就(jiu)是(shi)(shi)高壓(ya)(ya)(ya)液(ye)化(hua)(hua)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)。而氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)和低(di)壓(ya)(ya)(ya)液(ye)化(hua)(hua)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)在(zai)(zai)正(zheng)(zheng)常(chang)(chang)(chang)環(huan)(huan)(huan)(huan)境(jing)(jing)溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)范(fan)(fan)(fan)圍(wei)(wei)(wei)內(nei)不(bu)(bu)(bu)發生相(xiang)(xiang)變，其(qi)公(gong)稱(cheng)(cheng)(cheng)工(gong)作(zuo)壓(ya)(ya)(ya)力(li)(li)就(jiu)可(ke)(ke)按溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)時(shi)(shi)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)壓(ya)(ya)(ya)縮(suo)程(cheng)(cheng)度(du)(du)(du)(du)和飽和蒸氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)壓(ya)(ya)(ya)來(lai)確(que)定(ding)(ding)了。這(zhe)就(jiu)是(shi)(shi)說，瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)裝(zhuang)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)是(shi)(shi)按其(qi)裝(zhuang)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)后(hou)(hou)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)狀(zhuang)態和是(shi)(shi)否發生相(xiang)(xiang)變來(lai)分(fen)(fen)(fen)類(lei)(lei)(lei)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)。正(zheng)(zheng)常(chang)(chang)(chang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)環(huan)(huan)(huan)(huan)境(jing)(jing)溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)范(fan)(fan)(fan)圍(wei)(wei)(wei)確(que)定(ding)(ding)后(hou)(hou)，氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)臨界(jie)溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)將(jiang)(jiang)(jiang)是(shi)(shi)確(que)定(ding)(ding)其(qi)裝(zhuang)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)后(hou)(hou)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)狀(zhuang)態和是(shi)(shi)否能(neng)發生相(xiang)(xiang)變的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)依據(ju)了。所以(yi)(yi)(yi)，氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)分(fen)(fen)(fen)類(lei)(lei)(lei)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)依據(ju)也(ye)就(jiu)是(shi)(shi)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)臨界(jie)溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)。這(zhe)與(yu)(yu)(yu)國際(ji)上(shang)(shang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)分(fen)(fen)(fen)類(lei)(lei)(lei)方法也(ye)是(shi)(shi)相(xiang)(xiang)一致(zhi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)。由于(yu)普通(tong)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)是(shi)(shi)一無絕熱層的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)移(yi)動式壓(ya)(ya)(ya)力(li)(li)容器，其(qi)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)內(nei)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)無疑是(shi)(shi)受(shou)(shou)外界(jie)溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)影(ying)響(xiang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)。外界(jie)溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)應是(shi)(shi)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)在(zai)(zai)充裝(zhuang)、儲(chu)存、運(yun)輸(shu)、使(shi)用(yong)(yong)時(shi)(shi)正(zheng)(zheng)常(chang)(chang)(chang)環(huan)(huan)(huan)(huan)境(jing)(jing)可(ke)(ke)能(neng)達到的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)和溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)。所謂正(zheng)(zheng)常(chang)(chang)(chang)環(huan)(huan)(huan)(huan)境(jing)(jing)就(jiu)是(shi)(shi)指在(zai)(zai)沒(mei)有(you)(you)人為(wei)(wei)(wei)(wei)(wei)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)加溫(wen)(wen)(wen)(wen)或火災等的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)自然(ran)環(huan)(huan)(huan)(huan)境(jing)(jing)，而溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)則應考(kao)慮(lv)我國的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)地理位置和氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)候(hou)條件。《89規(gui)程(cheng)(cheng)》規(gui)定(ding)(ding)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)正(zheng)(zheng)常(chang)(chang)(chang)環(huan)(huan)(huan)(huan)境(jing)(jing)溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)為(wei)(wei)(wei)(wei)(wei)-40-60℃。這(zhe)一溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)并不(bu)(bu)(bu)是(shi)(shi)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)溫(wen)(wen)(wen)(wen)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)和值。因(yin)為(wei)(wei)(wei)(wei)(wei)受(shou)(shou)陽(yang)光(guang)直射的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)物體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)表(biao)面溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)耍比氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)溫(wen)(wen)(wen)(wen)高很多(duo)，而氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)積通(tong)常(chang)(chang)(chang)艾比控小。所以(yi)(yi)(yi)受(shou)(shou)陽(yang)光(guang)直射的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)內(nei)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)可(ke)(ke)能(neng)會高于(yu)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)溫(wen)(wen)(wen)(wen)。因(yin)此，氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)正(zheng)(zheng)常(chang)(chang)(chang)環(huan)(huan)(huan)(huan)境(jing)(jing)溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)是(shi)(shi)根(gen)據(ju)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)溫(wen)(wen)(wen)(wen)和氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)日(ri)光(guang)曝曬(shai)試驗等因(yin)素確(que)定(ding)(ding)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)使(shi)用(yong)(yong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)范(fan)(fan)(fan)圍(wei)(wei)(wei)。但(dan)這(zhe)個(ge)上(shang)(shang)、下限的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)值是(shi)(shi)為(wei)(wei)(wei)(wei)(wei)不(bu)(bu)(bu)同的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)目(mu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)設(she)定(ding)(ding)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)。上(shang)(shang)限值是(shi)(shi)確(que)定(ding)(ding)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)內(nei)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)(ti)可(ke)(ke)達到的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)工(gong)作(zuo)壓(ya)(ya)(ya)力(li)(li)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)參照(zhao)點，以(yi)(yi)(yi)選(xuan)擇氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)公(gong)稱(cheng)(cheng)(cheng)工(gong)作(zuo)壓(ya)(ya)(ya)力(li)(li)。而下限值是(shi)(shi)考(kao)慮(lv)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)可(ke)(ke)能(neng)工(gong)作(zuo)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)環(huan)(huan)(huan)(huan)境(jing)(jing)溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)對(dui)(dui)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)材料性(xing)能(neng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)影(ying)響(xiang)，以(yi)(yi)(yi)選(xuan)擇制造氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)材質(zhi)。