| 11. | Non - destructive testing - penetrant testing - reference test blocks
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| 12. | Water washable dye penetrant testing method
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| 13. | Non destructive testing . penetrant testing . a type comparator block
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| 14. | Non - destructive testing - penetrant testing - part 4 : equipment
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| 15. | Non - destructive testing - penetrant testing - part 4 : equipment
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| 16. | Non - destructive testing - penetrant testing - part 1 : general principles
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| 17. | Non - destructive testing - terminology - terms used in penetrant testing
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| 18. | Non - destructive testing - terminology - terms used in penetrant testing
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| 19. | Non - destructive testing of steel forgings . part 2 : penetrant testing
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| 20. | Non - destructive testing - penetrant testing - part 5 : means of verification
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