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2. 2. Steiner, D., Marewski, U. et al. (2023) DVGW-Project SyWeSt H2 - Final report. Study funded by DVGW e.V. https://www.dvgw.de/medien/dvgw/forschung/berichte/g202006-sywesth2-staehle.pdf
3. 3. ISO 3690:2018: Welding and allied processes - Determination of hydrogen content in arc weld metal.
4. 4. ANSI/AWS A4.3-93:2006: Standard methods for determination of the diffusible hydrogen content of martensitic, bainitic, and ferritic steel weld metal produced by arc welding.
5. 5. Padhy, G.K., Komizo, Y.I. (2013) Diffusible hydrogen in steel weldments - a status review. Transact. of the Japanese Welding Research Institute, 1, 39-62.