ppr家裝管在(zai)應用前的檢驗項目主要(yao)有以(yi)下幾(ji)點：

外觀

ppr管(guan)(guan)件管(guan)(guan)材(cai)的色澤(ze)應(ying)基本一致，ppr管(guan)(guan)件管(guan)(guan)材(cai)內(nei)外(wai)表(biao)面(mian)應(ying)光(guang)(guang)滑、平整，無凹陷、氣泡和其他(ta)影響性能的表(biao)面(mian)缺陷，ppr管(guan)(guan)件管(guan)(guan)材(cai)不(bu)(bu)應(ying)含有可(ke)見(jian)雜質；ppr管(guan)(guan)件管(guan)(guan)材(cai)表(biao)面(mian)應(ying)光(guang)(guang)滑、平整，不(bu)(bu)允許有裂(lie)紋(wen)、氣泡、脫皮和明顯的雜質、嚴重的縮形以及色澤(ze)不(bu)(bu)均、分解變(bian)色等缺陷。

不透光性

ppr管件管材應不透光。

管徑和壁厚

ppr管(guan)(guan)(guan)(guan)(guan)(guan)件(jian)管(guan)(guan)(guan)(guan)(guan)(guan)材根據GB/T18742.2-2002國家標(biao)準,管(guan)(guan)(guan)(guan)(guan)(guan)材按尺(chi)寸分為S5、S4、S3.2、S2.5、S2五個系列(lie)。ppr管(guan)(guan)(guan)(guan)(guan)(guan)件(jian)管(guan)(guan)(guan)(guan)(guan)(guan)材系列(lie)S與公(gong)稱(cheng)壓力有相(xiang)應的(de)(de)對應關系，ppr管(guan)(guan)(guan)(guan)(guan)(guan)件(jian)管(guan)(guan)(guan)(guan)(guan)(guan)材規格用管(guan)(guan)(guan)(guan)(guan)(guan)系列(lie)S、公(gong)稱(cheng)外徑dn*公(gong)稱(cheng)壁(bi)厚(hou)en表(biao)示，ppr管(guan)(guan)(guan)(guan)(guan)(guan)件(jian)管(guan)(guan)(guan)(guan)(guan)(guan)材主要檢驗管(guan)(guan)(guan)(guan)(guan)(guan)材的(de)(de)公(gong)稱(cheng)外徑、平均外徑以及與管(guan)(guan)(guan)(guan)(guan)(guan)系列(lie)對應的(de)(de)壁(bi)厚(hou)、管(guan)(guan)(guan)(guan)(guan)(guan)件(jian)的(de)(de)承口(kou)尺(chi)寸與相(xiang)應的(de)(de)公(gong)稱(cheng)外徑。

物理力學(xue)性能(neng)和化(hua)學(xue)性能(neng)

ppr管(guan)件管(guan)材(cai)靜液壓試(shi)(shi)(shi)驗(yan)、熔體質量(liang)流動速率、靜液壓狀態下熱穩定性試(shi)(shi)(shi)驗(yan)以(yi)及管(guan)材(cai)的縱向回縮率、簡支梁沖擊(ji)試(shi)(shi)(shi)驗(yan)是否符合國家(jia)標(biao)準規(gui)定，ppr管(guan)件管(guan)材(cai)此項可檢(jian)查材(cai)料的檢(jian)驗(yan)報告內(nei)容及復試(shi)(shi)(shi)報告內(nei)容。

衛生性能是(shi)否(fou)符(fu)合國家標(biao)準規(gui)定(ding)

ppr管(guan)件管(guan)材此項(xiang)可檢查衛生(sheng)檢驗(yan)部門對ppr管(guan)件管(guan)材的衛生(sheng)性(xing)能(neng)檢驗(yan)報告。

適(shi)用性(xing)

ppr管(guan)件管(guan)材與(yu)管(guan)件連接后應通過8760小時內壓(ya)和5000次(ci)熱循環(huan)兩項(xiang)組合試驗(yan)。