环境速测箱使用说明书(国外英文资料).docVIP

环境速测箱使用说明书(国外英文资料) Manual of environmental test kit 1 Overview 8244 environmental fast measuring box is a comprehensive experiment box for environmental education and environmental observation activities in middle schools, including two parts: instrument and medicament box (also can be purchased by oneself). The combination of junior high school science and geography of senior high school chemistry textbooks related content and experimental books, can complete the pH value of the soil, P, N determination, determination of water quality, air quality determination of grouping experiment, inquiry ability to focus on the practical ability of students, enhance the awareness of environmental protection, teachers can combine teaching material selection, combination. 2. main performance indexes: This test kit can complete the basic test of water, soil and air (mainly by colorimetry). 1. water quality determination: water temperature, pH value, ammonium nitrogen, phosphate, can carry out water eutrophication pollution experiment. How many bacteria can distinguish between domestic sewage and clean water; detecting the decomposition of household detergents under natural conditions. 2. Soil Determination: soil texture, texture, pH, available phosphorus, ammonium nitrogen determination (compared with the colorimetric card, measured content mg/kg) 3. determination of air quality: Determination of airborne dust particles (how much can be compared) determination of air NO2 and SO2 (comparison with colorimetric card determination of content mg/m3) acid rain pH value 3 usage: (see the main experimental catalogue and method) 4 warning items: Two the preparation of four mercuric chloride and mercuric chloride potassium absorption liquid are highly toxic reagents, should be managed strictly according to the poisonous drug management approach to each experiment before the experiment by the teacher after preparing the distribution, use of special care, such as splashing into the skin, rin