ASTM D1068-15
Standard Test Methods for Iron in Water

Standard No.
ASTM D1068-15
Release Date
2015
Published By
American Society for Testing and Materials (ASTM)
Latest
ASTM D1068-15
Scope

4.1 Iron is the second most abundant metallic element in the earth's crust and is essential in the metabolism of plants and animals. If presented in excessive amounts, however, it forms oxyhydroxide precipitates that stain laundry and porcelain. As a result, the recommended limit for iron in domestic water supplies is 0.3 mg/L. These test methods are useful for determining iron in many natural waters.

1.1 These test methods cover the determination of iron in water. Procedures are given for determining total iron, dissolved iron, and ferrous iron. Undissolved iron may be calculated from the total iron and dissolved iron determinations. The test methods are given as follows:

 

Range

Sections

Test Method A—Atomic Absorption,
8199;Direct

8199;0.1 to 5.0 mg/L

 7 to 16

Test Method B—Atomic Absorption,
8199; Graphite Furnace

8199;5 to 100 μg/L

17 to 26

Test Method C—Photometric
8199;Bathophenanthroline μg/L

40 to 1000 μg/L

27 to 38

1.2 It is the user's responsibility to ensure the validity of these test methods to waters of untested matrices.

1.3 The chelation-extraction and two former photometric test methods were discontinued. See Appendix X2 for historical information.

1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard.

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilit......

ASTM D1068-15 Referenced Document

  • ASTM D1066 Standard Practice for Sampling Steam
  • ASTM D1129 Standard Terminology Relating to Water
  • ASTM D1193 Standard Specification for Reagent Water
  • ASTM D1687 Standard Test Methods for Chromium in Water
  • ASTM D1688 Standard Test Methods for Copper in Water
  • ASTM D1691 Standard Test Methods for Zinc in Water
  • ASTM D1886 Standard Test Methods for Nickel in Water
  • ASTM D2777 Standard Practice for Determination of Precision and Bias of Applicable Methods of Committee D-19 on Water
  • ASTM D3370 Standard Practices for Sampling Water from Closed Conduits
  • ASTM D3558 Standard Test Methods for Cobalt in Water
  • ASTM D3559 Standard Test Methods for Lead in Water
  • ASTM D3919 Standard Practice for Measuring Trace Elements in Water by Graphite Furnace Atomic Absorption Spectrophotometry
  • ASTM D4841 Standard Practice for Estimation of Holding Time for Water Samples Containing Organic and Inorganic Constituents
  • ASTM D5673 Standard Test Method for Elements in Water by Inductively Coupled Plasma8212;Mass Spectrometry
  • ASTM D5810 Standard Guide for Spiking into Aqueous Samples 
  • ASTM D5847 Standard Practice for Writing Quality Control Specifications for Standard Test Methods for Water Analysis
  • ASTM D858 Standard Test Methods for Manganese in Water
  • ASTM E275 Standard Practice for Describing and Measuring Performance of Ultraviolet, Visible, and Near-Infrared Spectrophotometers
  • ASTM E60 Standard Practice for Analysis of Metals, Ores, and Related Materials by Molecular Absorption Spectrometry

ASTM D1068-15 history

Standard Test Methods for Iron in Water


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