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防寒雞舍保溫棉被介紹

發(fā)布者：zyb123456 發(fā)布時(shí)間：2018-07-08 00:03:56 訪(fǎng)問(wèn)次數(shù)：216

目前，國(guó)內(nèi)的食品包裝袋一般可分為單膜袋和復(fù)合薄膜包裝袋兩大類(lèi)。其主要執(zhí)行標(biāo)準(zhǔn)有：GB/T4456-1996《包裝用聚乙烯吹塑薄膜》、GB12025-1989《高密度聚乙烯吹塑薄膜》、QB/T2461-1999《包裝用降解聚乙烯薄膜》、GB9687-1988《食品包裝用聚乙烯成型品衛(wèi)生標(biāo)準(zhǔn)》、GB9688-1988《食品包裝用聚丙烯成型品衛(wèi)生標(biāo)準(zhǔn)》等。

食品包裝袋檢驗(yàn)項(xiàng)目

按照單膜袋和復(fù)合膜袋兩種不同的材質(zhì)，需分別進(jìn)行不同的檢驗(yàn)項(xiàng)目。

單膜袋檢驗(yàn)項(xiàng)目主要分為三大類(lèi)：一、外觀不得有對(duì)使用有礙的氣泡、穿孔、水紋、暴筋、塑化不良、魚(yú)眼僵塊等疵病；二、規(guī)格、寬度、長(zhǎng)度、厚度偏差均應(yīng)有規(guī)定的范圍內(nèi)；三、物理機(jī)械性能包括拉伸強(qiáng)度、斷裂伸長(zhǎng)率。

復(fù)合膜袋檢驗(yàn)項(xiàng)目主要分為四大類(lèi)：一、外觀應(yīng)平整，無(wú)劃傷、燙傷、氣泡、破油和折皺，熱封平整、無(wú)虛封，薄膜不得有裂紋；二、孔隙和復(fù)合層分離。無(wú)雜質(zhì)、異物和油漬等污染；三、袋裝浸泡液，不得有異味、異臭、渾濁和脫色現(xiàn)象；四、包括拉伸強(qiáng)度、斷裂伸長(zhǎng)率，氣體透過(guò)量、耐油度指標(biāo)、耐熱、耐寒以及袋的封口剝離力、袋的耐壓和耐跌落性等指標(biāo)。

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http://news.fdc.com.cn/ZMMP8HG/741349251656712.shtml

http://news.fdc.com.cn/ZMMP8HG/260350488524043.shtml

教http://news.fdc.com.cn/ZMMP8HG/259092133874709.shtml

http://news.fdc.com.cn/ZMMP8HG/12612895377708.shtml

http://news.fdc.com.cn/ZMMP8HG/299412061021850.shtml

http://news.fdc.com.cn/ZMMP8HG/742598366383518.shtml

http://news.fdc.com.cn/ZMMP8HG/300613742077411.shtml

http://news.fdc.com.cn/ZMMP8HG/160774933624913.shtml

http://news.fdc.com.cn/ZMMP8HG/743885455405508.shtml

http://news.fdc.com.cn/ZMMP8HG/745105171769458.shtml

http://news.fdc.com.cn/ZMMP8HG/66578809763135.shtml

http://news.fdc.com.cn/ZMMP8HG/267902270355747.shtml

http://news.fdc.com.cn/ZMMP8HG/303142863800107.shtml

http://news.fdc.com.cn/ZMMP8HG/781633981274233.shtml

http://news.fdc.com.cn/ZMMP8HG/303142188207203.shtml

http://news.fdc.com.cn/ZMMP8HG/752662615655291.shtml

http://news.fdc.com.cn/ZMMP8HG/784123040085154.shtml

http://news.fdc.com.cn/ZMMP8HG/61553236595913.shtml

http://news.fdc.com.cn/ZMMP8HG/837865676673227.shtml

http://news.fdc.com.cn/ZMMP8HG/236348638672977.shtml

http://news.fdc.com.cn/ZMMP8HG/304421033513844.shtml

來(lái)源：鳳凰新聞網(wǎng)

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