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.

日韩A V在线视频| 国产在线|日韩| 日韩在线一区二区每天更新| 国产女同无遮挡互慰高潮91| chinesegay雷爷系列精品| 日韩精品中文字幕国产一| 成人激情在线免费观看| 日韩字幕久久| 九九热在线观看视频免费| 日本电影一区二区在线观看| 女人高潮抽搐喷液30分钟视频| 一级欧美99精品| 午夜电影日韩| 日本中文字幕熟女人妻在线观看| 网剧我叫赵甲第在线播放| 两个校花被校长双伦h| 成人av在线视频免费看| 日韩高清av一区二区三| 中文字幕亚洲精品日韩一区| 69式视频在线免费观看| 3d同人动漫网站入口| 91制片厂免费| 亚洲精品中文字幕无乱码| 插入淫妻的骚穴在线播放| 中国老熟女色裸| 不知火舞被到爽羞视频| 免费在线观看欧美a级黄片| 2024av中文字幕| 女教师淫辱の教室蜜臀av软件| 91操美女网站在线观看| 98人妻精品一区二区久久| 国产精品成人在线免费看| free嫩白18seⅹ性hd处| 亚洲精品美女久久久久久久 | 大屄日大屌在线黄色视频| 欧美专区不卡| 亚洲国产精品日韩综合网| 揉死你个浪货| 午夜天堂精品xbxb| 国产乱xxxxx987国语对白| 国产精品美女久久久小说|