国产精品免费看视频-精品久久欧美熟妇www-中文永久有效幕中文永久-欧美午夜小视频-7777欧美-亚洲永久精品在线观看-男人av资源-日韩在线 中文字幕-色婷婷av一区二区三区丝袜美腿-亚洲成人精品视频-黄色av一区二区三区-久久久精品高清-蜜桃av网站-男人av影院-日韩三级一区-99视频只有精品-日韩精品视频在线观看免费

RTK 207 Earthworm acute toxicity tester

RTK 207 Earthworm acute toxicity tester



This method is used to evaluate the effects of application of test products in artificial soil on the survival of specified species of earthworms.

Brand: RTK
Model: RTK 207


Product introduction
Standards OECD 207, AS 5810, ASTM E 1676


Test principle

This method is used to evaluate the effects of application of test products in artificial soil on the survival of specified species of earthworms.

Earthworms of specified species, number, and weight were placed in a mixture of precisely defined artificial soil and a series of test products of different concentrations under controlled light and temperature conditions, and finally evaluated on days 7 and 14

The survival rate of earthworms, the behavior and pathological symptoms of earthworms were evaluated, and the changes of soil water content, pH and other parameters were recorded.


System parameter

Product characteristics
(1) Fully enclosed compressor, better cooling effect.
(2) Stainless steel inner liner, adjustable between shelves in the box.
(3) Good heat insulation, equipped with an observation window, easy to observe the situation in the box.
(4) Modular refrigeration device, delayed start, high and low pressure multiple protection.
(5) Unique stainless steel circulation duct, forced air circulation, uniform temperature.
(6) Touch screen, support data download.


Technical parameter
(1) Temperature: 20-40℃, temperature uniformity: ≤±1℃;
(2) Illumination: maximum not less than 10000 lux;
(3) Humidity: 50~95%RH, stability ≤3%RH;
(4) Volume: ≥150 L;
(5) Power supply: 220V 50Hz, 750W(maximum cooling power);
(6) Appearance size: 600W*650D*1410H Weight: 120kg.


Product configuration
(1) Host: 1 set
(2) Test container: 1 set
(3) Reference substrate: 1 part
(4) Operation kit: 1 set

Welcome to inquire! 027-87024316 13277923732 13100682770

  • 980 PEM Fuel Cell Testing System (manual back pressure)
  • 980Pro PEM Fuel Cell Testing System(Automatic back pressure)
    凯里市| 浪卡子县| 杭州市| 卢氏县| 耒阳市| 南澳县| 贡山| 仙桃市| 营口市| 天门市| 山丹县| 阿荣旗| 新昌县| 聊城市| 星座| 绥棱县| 西平县| 普定县| 都兰县| 武川县| 诸暨市| 安吉县| 龙口市| 渑池县| 贵阳市| 洪洞县| 左权县| 清水河县| 长泰县| 当阳市| 遂川县| 济宁市| 凤凰县| 仙桃市| 汶川县| 洱源县| 汶川县| 唐山市| 融水| 屯昌县| 汉源县|