久久99精品久久久久子伦,精品人妻无码一区二区三区性,永久免费不卡在线观看黄网站,大内密探零零性性

歡迎來濟(jì)南壹諾包裝有限公司網(wǎng)站!在線留言
  • 全國電話服務(wù)熱線:400-801-0899

當(dāng)前位置:首頁 > 新聞中心 > 行業(yè)新聞
如何識別外賣打包袋有沒有毒?
來源:czyuelin.com 發(fā)布時間:2022-12-31 瀏覽次數(shù):122
外賣打包袋是人們生活中經(jīng)常要用到的,但是使用的時候也一定要小心,有些外賣打包袋是有毒的,如何識別哪種膠袋有毒,哪種無毒呢?
Take away bags are often used in people's lives, but you must be careful when using them. Some take away bags are toxic. How to identify which plastic bags are toxic and which are non-toxic?
1、用手摸:用手撫摸塑料包裝袋表面,很光滑是無毒的;發(fā)粘、發(fā)澀、有蠟狀感的是有毒的。
1. Touch with hands: touch the surface of the plastic packaging bag with hands, which is very smooth and non-toxic; Sticky, astringent and waxy are poisonous.
2、用耳朵聽:用手使勁抖動塑料袋時,發(fā)出清脆聲表明是無毒塑料袋;而聲音小而悶的便是有毒塑料袋。
2. Listen with your ears: When shaking the plastic bag with your hands, it makes a clear sound indicating that it is non-toxic plastic bag; The noise is small and stuffy is toxic plastic bags.
3、肉眼察法:無毒塑料袋呈白色,透明或微透明,質(zhì)地均勻;有毒塑料袋則為彩色或雖為白色,但透明度差,較渾濁,塑料表面拉伸不均勻,有小顆粒。
3. Visual inspection: non-toxic plastic bag is white, transparent or slightly transparent, with uniform texture; Toxic plastic bags are colored or white, but their transparency is poor and turbid. The plastic surface is unevenly stretched with small particles.
4、用鼻子聞膠袋:無毒的塑料包裝袋是無味的;有刺激氣味或味道不正常的是有毒的。
4. Smell plastic bags with your nose: non-toxic plastic bags are tasteless; Those with pungent smell or abnormal taste are toxic.
外賣打包袋
5、沉水試驗法:把塑料袋放到水里,用手將其按到水底,稍等片刻,浮出水面的即為無毒塑料包裝袋,沉在水底的即是有毒塑料包裝袋。
5. Submerged test method: put the plastic bag in water, press it to the bottom with your hand, wait for a moment, and the non-toxic plastic packaging bag will emerge from the water, and the toxic plastic packaging bag will sink to the bottom.
6、燃燒法:無毒的塑料袋易燃,火焰尖端呈黃色,局部呈青色,燃燒時像蠟燭淚一樣滴落,有石蠟味;有毒的塑料袋不易燃燒,離火即熄,火焰尖端呈黃色、或是黑色,底部呈綠色,軟化能拉絲、還可以聞到一股刺鼻的味。
6. Combustion method: non-toxic plastic bag is flammable, the tip of the flame is yellow, and part of it is cyan. When burning, it drops like candle tears, with a wax smell; The poisonous plastic bag is not easy to burn, and will extinguish when it is away from the fire. The tip of the flame is yellow or black, and the bottom is green. It can be softened and brushed, and you can smell a pungent smell.
如何識別外賣打包袋有沒有毒?我們就從以上6個方法中嘗試辨認(rèn),希望您在購買批發(fā)時能夠有好的結(jié)果,更多相關(guān)事項就來我們的網(wǎng)站http://czyuelin.com咨詢看看吧!
How to identify whether the takeout bag is poisonous? We will try to identify them from the above six methods. We hope you can get good results when purchasing wholesale. More relevant matters will come to our website http://czyuelin.com Consult!
日本老熟妇maturebbw| 少妇愉情理伦片高潮日本| app在线免费观看视频| 欧美又粗又大xxxxbbbb疯狂| 成视频年人黄网站免费视频| 69麻豆天美精东蜜桃传媒| 国产精品久久久亚洲| 被群CAO的合不拢腿H小说| 四川老妇山边性对白| 欧美激情综合色综合啪啪五月| 亚洲日韩精品一区二区三区无码| 国产精品成人一区二区三区| 老汉在瓜棚里玩二个丫头| 五月AV综合AV国产AV| 被猛男伦流澡到高潮H| 久久久久久久久| 肉多荤文高H羞耻玩弄校园| 无码精品国产一区二区三区免费| 成人性生交大片免费看| 强行剥开两边虐花蒂玩弄| 中文字幕无码亚洲字幕成A人蜜桃| 东北体育生巨大粗爽GAY| 公交车强摁做开腿呻吟H视频 | 国产卡一卡二卡三乱码手机| 亚洲av无码国产精品麻豆天美| 精品国产一区二区三区四区VR| 欧美不卡一区二区三区| 人妻妺妺窝人体色WWW聚色窝| 国产亚洲精品久久久久久| 色综合久久久久综合99| 色偷偷伊人大杳蕉综合网| 精品亚洲AV无码一区二区| 亚洲人成无码网站在线观看| 国产欧美日韩丝袜高跟鞋| 国产风流老太婆大BBBHD视频| 花房姑娘免费观看全集| 国产AV熟女一区二区三区| 中文在线っと好きだった最新版| 色婷婷五月| 亚洲AV永久无码精品天堂D2| 我和闺蜜在KTV被八人伦|