ASTM D2087-06

Standard Test Method for Iron in Formaldehyde Solutions

SIGNIFICANCE AND USE
This test method provides a measurement of iron content of formaldehyde solutions. The results of these measurements can be used for specification acceptance.
SCOPE
1.1 This test method covers the determination of the total iron content of formaldehyde solutions.
1.2 For purposes of determining conformance of an observed or a calculated value using this test method to relevant specifications, test result(s) shall be rounded off "to the nearest unit" in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E 29.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 For hazard information and guidance, see the supplier's Material Safety Data Sheet.
This standard does not purport to address all of the safety concerns, if any, 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.

General Information

• Status: Historical
• Publication Date: 31-Mar-2006
• ICS: 71.080.80 - Aldehydes and ketones
• Technical Committee: D01 - Paint and Related Coatings, Materials, and Applications
• Drafting Committee: D01.35 - Solvents, Plasticizers, and Chemical Intermediates

Relations

• Replaces: ASTM D2087-97(2001) - Standard Test Method for Iron in Formaldehyde Solutions
• Effective Date: 01-Apr-2006
• Referred By: ASTM D2378-22 - Standard Specification for Formaldehyde 50 % Grade Uninhibited and 37 % Grade Inhibited and Uninhibited
• Effective Date: 01-Apr-2006

Standards Content (Sample)

Designation: D2087 − 06
Standard Test Method for
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Iron in Formaldehyde Solutions
This standard is issued under the fixed designation D2087; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* 4. Significance and Use
1.1 This test method covers the determination of the total 4.1 This test method provides a measurement of iron con-
tent of formaldehyde solutions. The results of these measure-
iron content of formaldehyde solutions.
ments can be used for specification acceptance.
1.2 For purposes of determining conformance of an ob-
served or a calculated value using this test method to relevant
5. Apparatus
specifications, test result(s) shall be rounded off “to the nearest
unit” in the last right-hand digit used in expressing the 5.1 Spectrophotometer, capable of measuring light absorp-
specification limit, in accordance with the rounding-off method tion at 510 nm.
of Practice E29.
5.2 Absorption Cells, minimum light path, 10 mm.
1.3 The values stated in SI units are to be regarded as
5.3 Evaporating Dishes, 90-mm diameter, high-silica glass.
standard. No other units of measurement are included in this
standard.
6. Reagents and Materials
1.4 For hazard information and guidance, see the supplier’s
6.1 Purity of Reagents—Reagent grade chemicals shall be
Material Safety Data Sheet.
used in all tests. Unless otherwise indicated, it is intended that
1.5 This standard does not purport to address all of the
all reagents shall conform to the specifications of the Commit-
safety concerns, if any, associated with its use. It is the
tee onAnalytical Reagents of theAmerican Chemical Society,
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responsibility of the user of this standard to establish appro-
where such specifications are available. Other grades may be
priate safety and health practices and determine the applica-
used, provided it is first ascertained that the reagent is of
bility of regulatory limitations prior to use.
sufficiently high purity to permit its use without lessening the
accuracy of the determination.
2. Referenced Documents
6.2 Purity of Water—Unless otherwise indicated, references
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2.1 ASTM Standards: to water shall be understood to mean reagent water as defined
D1193 Specification for Reagent Water by Type IV of Specification D1193.
E29 Practice for Using Significant Digits in Test Data to
6.3 Ammonium Acetate Solution (100 g/L)—Dissolve 100 g
Determine Conformance with Specifications
of ammonium acetate (NH C H O ) in 100 mL of water. Add
4 2 3 2
200 mL of acetic acid (CH COOH), dilute to 1 L with water,
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3. Summary of Test Method
and mix.
3.1 The specimen is evaporated and ashed; the iron, reduced
6.4 Ammonium Hydroxide(1+1) —Mix equal volumes of
to the divalent state by the addition of hydroxylamine hydro-
concentrated ammonium hydroxide (NH OH, sp gr 0.90) and
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chloride, is reacted with o-phenanthroline to develop a color
water.
that is measured at 510 nm.
6.5 Congo Red Paper.
6.6 Hydrochloric Acid (1+1) —Mix equal volumes of
concentrated hydrochloric acid (HCl, sp gr 1.19) and water.
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This test method is under the jurisdiction of ASTM Committee D01 on Paint
and Related Coatings, Materials, andApplications and is the direct responsibility of
Subcommittee D01.35 on Solvents, Plasticizers, and Chemical Intermediates .
Current edition approved April 1, 2006. Published April 2006. Originally
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approved in 1962. Last previous edition approved in 2001 as D2087 – 97 (2001). Reagent Chemicals, American Chemical Society Specifications , American
DOI: 10.1520/D2087-06. Chemical Society, Washington, DC. For suggestions on the testing of reagents not
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or listed by the American Chemical Society, see Analar Standards for Laboratory
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Chemicals, BDH Ltd., Poole, Dorset, U.K., and the United States Pharmacopeia
Standards volume information, refer to the standard’s Document Summary page on and National Formulary, U.S. Pharmacopeial Convention, Inc. (USPC), Rockville,
the ASTM website. MD.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D2087 − 06
6.7 Hydroxylamine Hydrochloride Solution (100 g/L)— order, mixing after the addition of each: 1 mL of NH OH·HCl
2
Dissolve 10 g of hydroxylamine hydrochloride (NH OH· solution, 5 mL of o-phenanthroline solution, enough NH OH
2 4
HCl) in water and dilute to 100 mL. (1 + 1) as required to make the solution just alkaline to Congo
red paper (approximate pH range 3.0 to 5.0), and 5 mL of
6.8 Iron, Standard Solution (1 mL = 0.05 mg Fe)—Di
...