ASTM D3872 - 05(2019) - Standard Test Method for Ferrous Iron in Iron Oxides

ASTM D3872 - 05(2019)

Standard Test Method for Ferrous Iron in Iron Oxides

Status : Current   Published : May 2019



1.1 This test method covers the quantitative determination of ferrous oxide (FeO) by oxidation of ferrous iron (Fe ++) in an acid solution to the ferric state (Fe +++) and titration with potassium dichromate using diphenylamine as the indicator.

1.2 This test method is applicable to synthetic black iron oxide, natural black iron oxide, magnetite or brown iron oxide where part of the iron content is present in the ferrous state ( Note 1). It is applicable to iron oxides where the ferrous iron content ranges from 50 to 0.20 %.

Note 1:  Natural iron oxides and magnetite may contain traces of metallic iron that will be combined with and analyzed as FeO.

1.3  This standard does not purport to address the safety concerns if any, problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.4  This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Standard NumberASTM D3872 - 05(2019)
TitleStandard Test Method for Ferrous Iron in Iron Oxides
Publication Date01 May 2019
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
Descriptors ferrous iron content, iron oxides, pigment, ferrous iron content, Black pigments, Brown iron oxide, Ferrous iron content, Iron content--paint driers, Iron oxide pigments--black (natural/synthetic), Iron oxide pigments--brown (natural/synthetic), Natural pigments, Paint pigments--specifications
File Size86 KB

 Your basket
Your basket is empty

Multi-user access to over 3,500 medical device standards, regulations, expert commentaries and other documents

Worldwide Standards
We can source any standard from anywhere in the world

Develop a PAS

Develop a fast-track standardization document in 9-12 months

Tracked Changes

Understand the changes made to a standard with our new Tracked Changes version