What is ISO 4491‑4 - Oxygen reduction method about?
ISO 4491 is a series of international standards on the determination of oxygen content by reduction methods that discusses the best procedures and specifications required to determine the oxygen content of metallic powders. ISO 4491‑4 is the fourth part of a series of documents on the determination of oxygen content by reduction methods. ISO 4491‑4 specifies a method for the determination of the total oxygen content of metallic powders by reduction-extraction at high temperatures.
Who is ISO 4491‑4 - Oxygen reduction method for?
ISO 4491‑4 on the determination of oxygen content by reduction methods is beneficial for
- Metal industries
- Metallurgist
- Metal testing laboratory
Why should you use ISO 4491‑4 - Oxygen reduction method?
The determination of the oxygen content of metallic powders is of the utmost importance in many fields of powder metallurgy. Therefore, a standard method for the determination of the total oxygen content is needed.
ISO 4491‑4 provides guidance on principle, apparatus, materials required, test procedure, and test report of oxygen reduction methods.
As a user of ISO 4491‑4, you can be ensured of the test procedure used to determine total oxygen content. With obedience and compliance to ISO 4491‑4, you can efficiently determine the oxygen content in metal and can improve the metal quality. ISO 4491‑4 provides you with comprehensive information useful throughout the process.
What’s changed since the last update?
BS EN ISO 4491‑4:2019 supersedes BS EN ISO 4491‑4:2013, which is withdrawn. The changes compared to the previous edition are as follows
- Addition of Terms and definitions
- In the Test portion, 0.1 mg is changed to 0.000 1 g, carbon monoxide changed to CO, and carbon dioxide changed to CO2.