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Description of ASTM-D3872 2011ASTM D3872 - 05(2011)Standard Test Method for Ferrous Iron in Iron OxidesActive Standard ASTM D3872 | Developed by Subcommittee: D01.31 Book of Standards Volume: 06.03 ASTM D3872Significance and Use
This test method may be used for production quality control or specification acceptance. 1. Scope
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 1Natural 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 and health practices and determine the applicability of regulatory limitations prior to use. ASTM Standards D50 Test Methods for Chemical Analysis of Yellow, Orange, Red, and Brown Pigments Containing Iron and Manganese D280 Test Methods for Hygroscopic Moisture (and Other Matter Volatile Under the Test Conditions) in Pigments D769 Specification for Black Synthetic Iron Oxide D1193 Specification for Reagent Water D3722 Specification for Natural Red and Brown Iron Oxide Pigments D3724 Specification for Synthetic Brown Iron Oxide Pigment Keywords ferrous iron content; iron oxides; ferrous iron content; pigment; iron oxides; 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 DOI: 10.1520/D3872-05R11 ASTM International is a member of CrossRef. ASTM D3872This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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