Periwal Irrigations Pvt. Ltd. Testing and Quality Control

---

Testing and Quality Control

Periwal’s  uPVC pipes are subjected to severe testing and quality control checks both during and after production. The tests carried out as per ISI 4985:2000

• Measurement of outside diameter.
  
• Measurement of wall thickness.
  
• Test for opacity
  
• Determining the detrimental effect on the composition of water.
  
• Reversion test.
  
• Stress relief test.
  
• Resistance to sulphuric acid.
  
• Internal hydrostatic pressure test.
  
• Impact strength at 0 degree Celsius.