據(ju)廣(guang)東建設工(gong)程信息網消息，國(guo)(guo)(guo)(guo)際建材(cai)(cai)(cai)(cai)環(huan)(huan)保(bao)化(hua)趨勢明顯。據(ju)悉(xi)，目前(qian)鉛(qian)(qian)熱穩(wen)(wen)(wen)(wen)(wen)定劑(ji)(ji)(ji)在(zai)美國(guo)(guo)(guo)(guo)已(yi)被禁(jin)用(yong)(yong)(yong)(yong)(yong)(yong)，歐洲(zhou)也(ye)正在(zai)制定相(xiang)關的(de)(de)(de)禁(jin)用(yong)(yong)(yong)(yong)(yong)(yong)條(tiao)例，在(zai)美國(guo)(guo)(guo)(guo)有(you)機錫(xi)熱穩(wen)(wen)(wen)(wen)(wen)定劑(ji)(ji)(ji)早(zao)已(yi)全(quan)面(mian)取代了(le)(le)鉛(qian)(qian)熱穩(wen)(wen)(wen)(wen)(wen)定劑(ji)(ji)(ji)。國(guo)(guo)(guo)(guo)內(nei)一些PVC水(shui)(shui)管(guan)(guan)等管(guan)(guan)材(cai)(cai)(cai)(cai)生產企業由(you)于(yu)生產成(cheng)(cheng)本(ben)及(ji)技(ji)術(shu)(shu)方面(mian)的(de)(de)(de)原(yuan)因，仍在(zai)大量(liang)使(shi)(shi)用(yong)(yong)(yong)(yong)(yong)(yong)鉛(qian)(qian)熱穩(wen)(wen)(wen)(wen)(wen)定劑(ji)(ji)(ji)。 -國(guo)(guo)(guo)(guo)際“禁(jin)鉛(qian)(qian)令”蔓延中(zhong)(zhong)國(guo)(guo)(guo)(guo) 全(quan)國(guo)(guo)(guo)(guo)標(biao)(biao)準化(hua)技(ji)術(shu)(shu)委(wei)員會(hui)塑料管(guan)(guan)材(cai)(cai)(cai)(cai)?管(guan)(guan)件及(ji)閥門分(fen)(fen)技(ji)術(shu)(shu)委(wei)員會(hui)秘書長趙(zhao)啟輝表示，本(ben)次(ci)發布(bu)的(de)(de)(de)國(guo)(guo)(guo)(guo)家標(biao)(biao)準是(shi)參照(zhao)國(guo)(guo)(guo)(guo)際標(biao)(biao)準制(修(xiu))定的(de)(de)(de)，并(bing)根據(ju)國(guo)(guo)(guo)(guo)內(nei)外材(cai)(cai)(cai)(cai)料技(ji)術(shu)(shu)?管(guan)(guan)材(cai)(cai)(cai)(cai)加(jia)工(gong)技(ji)術(shu)(shu)及(ji)環(huan)(huan)保(bao)要求(qiu)的(de)(de)(de)變化(hua)，對(dui)部分(fen)(fen)內(nei)容(rong)(rong)進行(xing)了(le)(le)修(xiu)訂。 給(gei)(gei)水(shui)(shui)用(yong)(yong)(yong)(yong)(yong)(yong)PVC-U管(guan)(guan)材(cai)(cai)(cai)(cai)國(guo)(guo)(guo)(guo)家標(biao)(biao)準中(zhong)(zhong)，修(xiu)訂的(de)(de)(de)主(zhu)要技(ji)術(shu)(shu)內(nei)容(rong)(rong)是(shi):增加(jia)了(le)(le)對(dui)樹(shu)脂K值的(de)(de)(de)要求(qiu)，禁(jin)止(zhi)使(shi)(shi)用(yong)(yong)(yong)(yong)(yong)(yong)鉛(qian)(qian)鹽(yan)穩(wen)(wen)(wen)(wen)(wen)定劑(ji)(ji)(ji)，提高(gao)了(le)(le)落錘沖(chong)擊(ji)試驗(yan)的(de)(de)(de)沖(chong)擊(ji)能量(liang)，部分(fen)(fen)采納了(le)(le)國(guo)(guo)(guo)(guo)外相(xiang)關先(xian)進標(biao)(biao)準的(de)(de)(de)技(ji)術(shu)(shu)指標(biao)(biao)，調整(zheng)了(le)(le)液(ye)壓試驗(yan)的(de)(de)(de)環(huan)(huan)應力，增加(jia)了(le)(le)系統適用(yong)(yong)(yong)(yong)(yong)(yong)性試驗(yan)和尺寸(cun)分(fen)(fen)組及(ji)定型檢驗(yan)等。 北京和上(shang)海(hai)首先(xian)通過了(le)(le)在(zai)給(gei)(gei)水(shui)(shui)管(guan)(guan)中(zhong)(zhong)禁(jin)鉛(qian)(qian)的(de)(de)(de)決定，隨(sui)(sui)后該決定在(zai)國(guo)(guo)(guo)(guo)內(nei)眾(zhong)多(duo)城市開(kai)始蔓延。2004年建設部公告中(zhong)(zhong)明確指出(chu)在(zai)全(quan)國(guo)(guo)(guo)(guo)范圍內(nei)使(shi)(shi)用(yong)(yong)(yong)(yong)(yong)(yong)的(de)(de)(de)供(gong)水(shui)(shui)管(guan)(guan)PVC-U管(guan)(guan)不能含有(you)鉛(qian)(qian)鹽(yan)穩(wen)(wen)(wen)(wen)(wen)定劑(ji)(ji)(ji)。到本(ben)月，國(guo)(guo)(guo)(guo)家標(biao)(biao)準中(zhong)(zhong)明確提出(chu)給(gei)(gei)水(shui)(shui)用(yong)(yong)(yong)(yong)(yong)(yong)PVC-U管(guan)(guan)材(cai)(cai)(cai)(cai)禁(jin)止(zhi)使(shi)(shi)用(yong)(yong)(yong)(yong)(yong)(yong)鉛(qian)(qian)鹽(yan)穩(wen)(wen)(wen)(wen)(wen)定劑(ji)(ji)(ji)，使(shi)(shi)得我(wo)國(guo)(guo)(guo)(guo)“禁(jin)鉛(qian)(qian)令”達到高(gao)潮(chao)。 雖(sui)然此次(ci)國(guo)(guo)(guo)(guo)標(biao)(biao)明確提出(chu)了(le)(le)“禁(jin)止(zhi)使(shi)(shi)用(yong)(yong)(yong)(yong)(yong)(yong)鉛(qian)(qian)鹽(yan)穩(wen)(wen)(wen)(wen)(wen)定劑(ji)(ji)(ji)”，但是(shi)只(zhi)是(shi)限(xian)于(yu)給(gei)(gei)水(shui)(shui)用(yong)(yong)(yong)(yong)(yong)(yong)PVC-U管(guan)(guan)材(cai)(cai)(cai)(cai)。其實不僅是(shi)給(gei)(gei)水(shui)(shui)用(yong)(yong)(yong)(yong)(yong)(yong)PVC-U管(guan)(guan)材(cai)(cai)(cai)(cai)使(shi)(shi)用(yong)(yong)(yong)(yong)(yong)(yong)鉛(qian)(qian)鹽(yan)穩(wen)(wen)(wen)(wen)(wen)定劑(ji)(ji)(ji)才會(hui)對(dui)環(huan)(huan)境(jing)造成(cheng)(cheng)污(wu)染(ran)，另外一些PVC管(guan)(guan)材(cai)(cai)(cai)(cai)，比如(ru)，用(yong)(yong)(yong)(yong)(yong)(yong)于(yu)空中(zhong)(zhong)的(de)(de)(de)電線(xian)電纜中(zhong)(zhong)如(ru)果使(shi)(shi)用(yong)(yong)(yong)(yong)(yong)(yong)的(de)(de)(de)是(shi)鉛(qian)(qian)鹽(yan)穩(wen)(wen)(wen)(wen)(wen)定劑(ji)(ji)(ji)，鉛(qian)(qian)鹽(yan)隨(sui)(sui)雨水(shui)(shui)的(de)(de)(de)沖(chong)刷也(ye)會(hui)被帶入土壤，造成(cheng)(cheng)污(wu)染(ran)。同樣的(de)(de)(de)道理，使(shi)(shi)用(yong)(yong)(yong)(yong)(yong)(yong)鉛(qian)(qian)鹽(yan)穩(wen)(wen)(wen)(wen)(wen)定劑(ji)(ji)(ji)的(de)(de)(de)PVC門窗(chuang)等材(cai)(cai)(cai)(cai)了(le)(le)也(ye)會(hui)對(dui)環(huan)(huan)境(jing)造成(cheng)(cheng)污(wu)染(ran)。