Yes 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'.