Safety fences and barriers for highways - Specification for components for open box beam safety fence (double height) Ingestion-build-67170 The trained personnel shall be

The trained personnel shall be able to prove they have undergone training and qualification in digital industrial radiography or radioscopy as described in ISO 15708‑4

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although only limited guidance is given on some general aspects because the detailed functional requirements of individual structures are beyond the scope of this part of this code

ISO 3834-5 on fusion welding of metallic materials is applicable to:

Safety fences and barriers for highways - Specification for components for open box beam safety fence (double height) Ingestion-build-67170 The trained personnel shall be