ASTM D1125-14
Standard Test Methods for Electrical Conductivity and Resistivity of Water

Standard No.

ASTM D1125-14

Release Date

2014

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D1125-23

Latest

ASTM D1125-23

Scope

4.1 These test methods are applicable for such purposes as impurity detection and, in some cases, the quantitative measurement of ionic constituents dissolved in waters. These include dissolved electrolytes in natural and treated waters, such as boiler water, boiler feedwater, cooling water, and saline and brackish water.

4.1.1 Their concentration may range from trace levels in pure waters (2)⁴ to significant levels in condensed steam (see Test Methods D2186 and D4519, and Ref (3)), or pure salt solutions.

4.1.2 Where the principal interest in the use of conductivity methods is to determine steam purity, see Ref (4). These test methods may also be used for checking the correctness of water analyses (5).

1.1 These test methods cover the determination of the electrical conductivity and resistivity of water. The following test methods are included:

	Range	Sections
Test Method A—Field and Routine Laboratory	10 to 2008201;000	12 to 18
8199;Measurement of Static (Non-Flowing) Samples	8199;μS/cm
Test Method B—Continuous In-Line Measure	5 to 2008201;000	19 to 23
8199;ment	8199;μS/cm

1.2 These test methods have been tested in reagent water. It is the user's responsibility to ensure the validity of these test methods for waters of untested matrices.

1.3 For measurements below the range of these test methods, refer to Test Method D5391.

1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.5 This standard does not purp......

ASTM D1125-14 Referenced Document

• ASTM D1066 Standard Practice for Sampling Steam
• ASTM D1129 Standard Terminology Relating to Water
• ASTM D1192 Standard Guide for Equipment for Sampling Water and Steam in Closed Conduits
• ASTM D1193 Standard Specification for Reagent Water
• ASTM D2186 Standard Test Methods for Deposit-Forming Impurities in Steam
• 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 D4519 Standard Test Method for On-Line Determination of Anions and Carbon Dioxide in High Purity Water by Cation Exchange and Degassed Cation Conductivity
• ASTM D5391 Standard Test Method for Electrical Conductivity and Resistivity of a Flowing High Purity Water Sample
• ASTM E2251 Standard Specification for Liquid-in-Glass ASTM Thermometers with Low-Hazard Precision Liquids

ASTM D1125-14 history

• 2023 ASTM D1125-23 Standard Test Methods for Electrical Conductivity and Resistivity of Water
• 2014 ASTM D1125-14 Standard Test Methods for Electrical Conductivity and Resistivity of Water
• 1995 ASTM D1125-95(2009) Standard Test Methods for Electrical Conductivity and Resistivity of Water
• 1995 ASTM D1125-95(2005) Standard Test Methods for Electrical Conductivity and Resistivity of Water
• 1995 ASTM D1125-95(1999) Standard Test Methods for Electrical Conductivity and Resistivity of Water