There are tests for plastic welds, below is a selection of relevant tests.

• EN 12814-1:1999: ‘Testing of welded joints of thermoplastics semi-finished products – Part 1: Bend test’
• EN 12814-2:2000: ‘Testing of welded joints of thermoplastics semi-finished products – Part 2: Tensile test’
• EN 12814-3:2000: ‘Testing of welded joints of thermoplastics semi-finished products – Part 3: Tensile creep test’
• EN 12814-4:2001: ‘Testing of welded joints of thermoplastics semi-finished products – Part 4: Peel test’
• EN 12814-5:2000: ‘Testing of welded joints of thermoplastics semi-finished products – Part 5: Macroscopic examination’
• EN 12814-6:2000: ‘Testing of welded joints of thermoplastics semi-finished products – Part 6: Low-temperature tensile test’
• EN 12814-7:2002: ‘Testing of welded joints of thermoplastics semi-finished products – Part 7: Tensile test with waisted test specimens’
• EN 12814-8:2001: ‘Testing of welded joints of thermoplastics semi-finished products – Part 8: Requirements’
• EN13100-1:1999: ‘Non destructive testing of welded joints of thermoplastic semi-finished products: visual examination EN 13100-2:2004: ‘Non-destructive testing of welded joints of thermoplastics semi-finished products: X-ray testing’EN 13100-3:2004: ‘Non-destructive testing of welded joints of thermoplastics semi-finished products: Ultrasonic testing’EN 13100-4: ‘Non-destructive testing of welded joints of thermoplastics semi-finished products: High voltage testing’