ISO 4491-1:2023
International Standard
Current Edition
· Approved on 24 March 2023
Metallic powders — Determination of oxygen content by reduction methods — Part 1: General guidelines
ISO 4491-1:2023 Files
English 4 Pages
Current Edition
20.16 OMR
ISO 4491-1:2023 Scope
This document is the first part of a series of standards dealing with the determination of oxygen content in metallic powders by reduction methods. It specifies general guidance to these methods and gives some recommendations for the correct interpretation of the results obtained.
The test methods are applicable generally to all powders of metals, alloys, carbides and mixtures thereof. The constituents of the powder shall be non-volatile under the conditions of test. The powder shall be free of lubricant or organic binder.
However, there exist certain limitations which depend upon the nature of the analysed metal. These limitations are discussed in Clause 4.
Best Sellers
GSO 150-2:2013
Gulf Standard
Expiration dates for food products - Part 2 :
Voluntary expiration dates

OS GSO 150-2:2013
GSO 150-2:2013
Omani Standard
Expiration dates for food products - Part 2 :
Voluntary expiration dates


OS GSO 2055-1:2015
GSO 2055-1:2015
Omani Standard
HALAL FOOD - Part 1 : General Requirements


GSO 2055-1:2015
Gulf Technical Regulation
HALAL FOOD - Part 1 : General Requirements

Recently Published
OS 1657:2025
Omani Standard
Omani Sarooj

OS 1654:2025
Omani Standard
Cosmetics - Henna Paste for Adornment

OS 1658:2025:2025
Omani Standard
Disposable Garbage Bags

ISO 7718-2:2025
International Standard
Aircraft — Passenger doors interface requirements for connection of passenger boarding bridge or passenger transfer vehicle — Part 2: Upper deck doors
