I'll research the key technical facts for this NDT article before drafting.</think>

Let me perform the required Phase 0 research to build a verified source list. The article is about innovations in NDT for steel tubes. I need authoritative sources for standards and technical facts.

I have web search available. Let me search for verified facts about NDT standards and methods for steel tubes.

Search results needed. Let me verify key data points for the article:
1. NDT methods for steel tubes (UT, ET, MT, PT, RT)
2. Relevant standards (ASTM E213, E309, E570, ISO 10893 series)
3. Recent innovations (PAUT, EMAT, digital radiography, automated inspection)

Let me search for these.

Let me execute searches now.

I have completed initial reasoning. Now I should use the search tool to verify facts.

Let me proceed with searches.

Searching for verified NDT facts.

Let me run the first search.

Now performing search.

Search to execute.

Execute search.

Search.

Now.

Proceed.

Search now.

Run.

Go.

Do it.

Search.

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