亚洲AV秘 片一区二区三3,97久久久久精品美女高潮喷水,亚洲AV噜噜狠狠麻豆,激情婷婷久久综合一区

  • <var id="sr55d"><track id="sr55d"><ins id="sr55d"></ins></track></var>
    <b id="sr55d"><p id="sr55d"></p></b><source id="sr55d"><mark id="sr55d"></mark></source>
  • <tt id="sr55d"><tbody id="sr55d"><bdo id="sr55d"></bdo></tbody></tt>
    <b id="sr55d"><acronym id="sr55d"></acronym></b>
      

    3. 

      <u id="sr55d"></u><samp id="sr55d"><td id="sr55d"></td></samp>
      <video id="sr55d"></video><u id="sr55d"><address id="sr55d"></address></u>
    4. 









      
    
      
        
    
      

      

      
    
      
        Products
        
      
    
      
    
    
      
        

        
      
            
      
                
      
                    JG251 type protective clothing acid and alkali resistance tester
                
      
                
      
                    
                
      
                
      
                    
                        
      
                        
      【Scope of application】
      

      Used to determine the liquid repellent efficiency of fabric protective clothing materials for acid and alkali chemicals
      

      【Standards compliant】
      

      Appendix D in GB 24540-2009 "Protective Clothing, Protective Clothing for Acid and Alkaline Chemicals"
      

      【technical parameter】
      

      1. Automatic injection system: microcomputer automatic injection system
      

      2. Spray speed: continuous spray (10±0.2) mL of liquid within (10±0.2) s
      

      3. Working test slot: inner diameter (125±1) mm, length (300±0.5) mm, tilt 45°
      

      Material: Corrosion-resistant PTFE material (guaranteed to be corroded by 80% strong hydrochloric acid for more than 6 years)
      

      4. Injector: capacity (10±0.2) mL, pinhole diameter (0.8±0.01) mm
      

      5. The bottom of the flat tip is 100mm from the bottom of the groove