Thai
Standard Insulator
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Certificate Insulator
Product Certificate

TIS. 1077-2535  
  Line Post Type 57-2 : License No.6668-5/1077
  Line Post Type 57-3 : License No.7986-12/1077
     
TIS. 1251-2537
  Pin Post Type 56/57-2 : License No.7985-9/1251
   
TIS. 227-2525
  Spool Type B (53-2) : License No.3750-7/227
   
TIS. 280-2529
  Strain Type A (54-1) : License No.3752-10/280
  Strain Type D (54-4) : License No.3751-9/280
   
TIS. 354-2528
  Suspension Type A (52-1) : License No.(1)3111-16/354
  Suspension Type B (52-2) : License No.(2)2349-21/354
  Suspension Type C (52-3) : License No.(1)5504-19/354
  Suspension Type D (52-4) : License No.(1)5040-18/354


Management System Certificate

TIS. 9001-2559 (ISO 9001:2015)  
  Quality Management System for “ Design and Development and
   Manufacture of electrical porcelain insulators” :
   Certificate Number : QMS0244/489
   
ISO 14001:2015  
  Environmental Management Systems for the scope: “ Design and
   Development and Manufacture of Electrical Porcelain insulators ” :
   Certificate Number : EMS62002