麻豆md0077饥渴少妇,国产精品黑色丝袜的老师,丰满少妇被猛烈进入大叫自拍 ,日韩婷婷综合

濟(jì)南精美塑料包裝廠為您提供塑料袋、方便袋、塑料袋、食品塑料袋,相關(guān)信息發(fā)布和資訊展示,敬請(qǐng)關(guān)注!

濟(jì)南歷下精美塑料包裝廠

服務(wù)熱線: 18764138233

熱門:
公司簡(jiǎn)介
當(dāng)前位置:首頁(yè)-公司簡(jiǎn)介

濟(jì)南食品塑料包裝袋的準(zhǔn)確辨別方法

食品塑料包裝袋是人們生活中經(jīng)常要用到的,但是使用的時(shí)候也一定要小心,有些塑料包裝袋是有毒的,不可以用來(lái)直接裝食物的。

Food plastic packaging bags are commonly used in people's daily lives, but caution must also be exercised when using them. Some plastic packaging bags are toxic and cannot be used directly to store food.

一、用眼睛觀察法

1、 Observation method with eyes

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。

Non toxic plastic bags are white, transparent or slightly transparent, with a uniform texture; Toxic plastic bags are colored or white, but have poor transparency, are cloudy, have uneven surface stretching, and contain small particles.

20230426020449838.jpg

二、用耳朵聽(tīng)

2、 Listen with your ears

用手使勁抖動(dòng)塑料袋時(shí),發(fā)出清脆聲表明是塑料袋;而聲音小而悶的便是有毒塑料袋。

When shaking the plastic bag vigorously with your hands, a crisp sound indicates that it is a non-toxic plastic bag; And the one with a low and muffled sound is the toxic plastic bag.

三、用手摸

3、 Touch with your hands

用手撫摸塑料包裝袋表面,很光滑是的;發(fā)粘、發(fā)澀、有蠟狀感的是有毒的。

Touching the surface of the plastic packaging bag with your hand is very smooth and non-toxic; Sticky, astringent, and waxy hair are toxic.

四、用鼻子聞

4、 Smell with your nose

的塑料包裝袋是無(wú)味的;有刺激氣味或味道不正常的是有毒的。

Non toxic plastic packaging bags are odorless; Anything with a stimulating odor or abnormal taste is toxic.

五、沉水試驗(yàn)法

5、 Submerged test method

把塑料袋放到水里,用手將其按到水底,稍等片刻,浮出水面的即為塑料包裝袋,沉在水底的即是有毒塑料包裝袋。

Put the plastic bag into the water, press it to the bottom with your hand, wait for a moment, the one that floats to the surface is the non-toxic plastic packaging bag, and the one that sinks to the bottom is the toxic plastic packaging bag.

六、燃燒法

6、 Combustion method

的塑料袋易燃,火焰尖 端呈黃色,局部呈青色,燃燒時(shí)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。

Non toxic plastic bags are flammable, with a yellow flame tip and some areas appearing blue. When burned, they drip like candle tears and have a paraffin odor; Toxic plastic bags are not easy to burn and will extinguish immediately upon ignition. The flame tip is yellow or black, and the bottom is green. They soften and can be brushed, and a pungent odor can be smelled.

亚瑟一区二区三区四区| 国产午夜性生活免费视频| 91亚洲国产成人精品一区| 99国产超薄丝袜足j在线观看| 曰本三级免费看| 精品主播| 一级特黄性生交免费观看视频 | 美女丰满毛片免费看爽| 韩国午夜电影在线观看| 在线观看你懂的网址视频| 欧美毛多水多黑寡妇| 国产精品乱码一区二区三区| freeeⅹxx性欧美hd浪妇| 亲爱的小洁癖免费观看完整版电视剧| 国产九九免费| 亚洲精品久久久一区二区三区 | 丰满的的女16小丹| 亚洲情瑟| 在直播在线直播| a在线观看| 一本到高清视频不卡dvd| 久久久久久黄色小说网站| 成人卡一卡二| 亚洲精品一区二区三区国产| www.午夜激情.com| 潘金莲一级伦理| 顶级欧美熟妇另类| 亚州乱码区| 亚洲清纯唯美综合伊人色| 在直播在线直播| 国产在线地址| 精品久久久久久中文字幕人妻最新| 亚洲欧好州第一的日产suv| 极品AV88| 91人妻人人人人爽欧美| 日韩五十路熟女视频| 久久中文字幕人妻av女| 男女污污的网站| japan欧美性xxxx24| 国产精品久久久久久久9999| 少妇人妻不卡777精品|