精品少妇人妻av一区二区丨99精产国品一二三产区在线丨精品无码国产一区二区三区51安丨在线播放无码字幕亚洲丨国产成人精品综合久久久久

IS09001 IS014001 / IS045001 certification enterprises

Down and feather testing instrument

JG816 Down Washing Cleanliness Meter:

About our product:

Take a 10.0 g feather and down sample from the laboratory sample and place it in a 2000ml plastic jar, add 1000ml distilled water, cap and seal, place it in a shaker for 30 minutes, and the direction of oscillation is from the bottom of the bottle to the mouth of the bottle. .
  • Product details
【Product Description】 
1. Take a 10.0 g feather and down sample from the laboratory sample and place it in a 2000ml plastic jar, add 1000ml distilled water, and place it in a horizontal shaker for 30 min after sealing, the direction of oscillation is from the bottom of the bottle to Bottle mouth.
2. Filter the contents of the plastic jar with a standard sieve with an aperture of 0.1 mm (do not squeeze the filter), and collect the filtrate in a 2000 ml beaker
3. Pour the prepared sample liquid into the container of the transparency meter, slowly raise the position of the rubber hose, make the sample liquid enter the graduated cylinder through the hose, and make the liquid level gradually rise from the top of the cylinder Observe the black double cross line at the bottom until it disappears, then move the container down slightly to make the double cross line reappear and just be able to see clearly. Record the scale of the liquid level on the cylinder at this time, which is the sample Transparency
4. Measure the second sample according to the above-mentioned steps. The final result is the integer of the average of the two measurements, and the unit is millimeters.
5. Use a 1000mm transparency meter
6. The intensity of the light source should be above 600 Ix when measured under direct sunlight.
7. The height is 1000mm, including the cross black line
Previous     Next

All rights reserved:Wenzhou Jigao Testing Instrument Co., LTDFor the record:浙ICP備13025812號-4  
主站蜘蛛池模板: 老色69久久九九精品高潮| 免费国产午夜视频在线观看| 啪网站| 67194熟妇人妻欧美日韩| 一个人在线观看免费视频www| 欧美喷潮最猛视频| 久久久国产精品人人片| 夜色精品| 国产色婷婷亚洲99精品小说| 插b内射18免费视频| 国产成人综合久久三区| a国产一区二区免费入口 | 91插插插插| 五十路熟女丰满大屁股| 国产午夜精品一区二区三区嫩草| 亚洲性av网站| 丝袜美腿av在线| 免费乱理伦片在线观看夜| 久久久综合九色综合88| 尤物yw午夜国产精品视频| 92看片淫黄大片欧美看国产片| 亚洲性猛交xxxx| 久热国产区二三四| 中国浓毛少妇毛茸茸| 国产精品一区二区久久国产| 亚洲国产精品无码专区影院| 国产精品美女久久久久久| 久久久久中文字幕亚洲精品| 自拍日韩亚洲一区在线| 天堂网在线最新版www资源网| 亚洲精品无amm毛片| 精品91久久久久久| 日韩 高清 无码 人妻| 播播网色播播| 国产国语亲子伦亲子| 亚洲激情av| 欧美一级乱黄| 大桥久未无码吹潮在线观看|