Astm D 4130 – 03 pdf free download

Standard Test Method for
Sulfate Ion in Brackish Water, Seawater, and Brines 1

This standard is issued under the fixed designation D 4130; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of the last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.

1. Scope*

1.1 This test method covers the turbidimetric determination
of sulfate ions in brackish water, seawater, and brines. It has
been used successfully with synthetic brine-grade waters;
however, it is the user’s responsibility to ensure the validity of
this test method to other matrices.

1.2 This test method is applicable to waters having an ionic
strength greater than 0.65 mol/L and a sulfate ion concentration
greater than 25 mg/L. A concentration of less than 25 mg/L of sulfates
can be determined by using a standard addition method.

1.3 For brines having an ionic strength of less than 0.65
mol/L, refer to Test Methods D 516.

1.4 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.

2. Referenced Documents

2.1 ASTM Standards:
D 516 Test Methods for Sulfate Ion in Water 2
D 1129 Terminology Relating to Water 2
D 1192 Specification for Equipment for Sampling Water
and Steam in Closed Conduits 2
D 1193 Specification for Reagent Water 2
D 2777 Practice for Determination of Precision and Bias of
Applicable Methods of Committee D-19 on Water 2
D 3370 Practices for Sampling Water from Closed Conduits 2
D 5810 Guide for Spiking into Aqueous Samples 2
D 5847 Practice for Writing Quality Control Specifications
for Standard Test Methods for Water Analysis 3

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