... . 3. Has the recycling auto-alarm function Automatic Kjeldahl Nitrogen Determination System Model: ZDDN-IIProduct introduction: It is also ... called Automatic Protein Tester. It is used for testing nitrogen contains in grain, food, dairy products, drink, animal food ... .minisite.productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); Automatic Kjeldahl Nitrogen Determination System