ASTM D2330-20
Standard Test Method for Methylene Blue Active Substances

Standard No.

ASTM D2330-20

Release Date

2020

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM D2330-20

Scope

1.1 This test method covers the determination of compounds that react with methylene blue under the conditions specified in the test procedure. They are referred to as methylene blue active substances (MBAS), and are calculated and reported in terms of the reference material, linear alkyl benzene sulfonate, LAS. 1.2 This test method is applicable for determining MBAS in water and wastewater. It is the user’s responsibility to ensure the validity of this test method for waters of untested matrices. 1.3 This test method is a simple, rapid, control procedure suitable for monitoring the effectiveness of a biodegradation or other linear alkyl benzene sulfonate (LAS) removal process. For greater specificity and interference removal, the pretreatment procedure in Annex A1 should be used. Data derived without the pretreatment procedure should be interpreted with care. This test method is applicable in the range from 0.03 to 1.5 mg/L for a 100-mL sample. 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 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For a specific hazard statement, see 8.3. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM D2330-20 Referenced Document

• ASTM D1129 Standard Terminology Relating to Water
• ASTM D1193 Standard Specification for Reagent Water
• ASTM D3370 Standard Practices for Sampling Water from Closed Conduits
• ASTM D3856 Standard Guide for Good Laboratory Practices in Laboratories Engaged in Sampling and Analysis of Water
• ASTM D4210 Standard Practice for Intralaboratory Quality Control Procedures and a Discussion on Reporting Low-Level Data
• ASTM D459 Standard Terminology Relating to Soaps and Other Detergents
• ASTM D5788 Standard Guide for Spiking Organics into Aqueous Samples
• ASTM D5789 Standard Practice for Writing Quality Control Specifications for Standard Test Methods for Organic Constituents
• ASTM D5847 Standard Practice for Writing Quality Control Specifications for Standard Test Methods for Water Analysis
• ASTM E131 Standard Definitions of Terms and Symbols Relating to Molecular Spectroscopy
• 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 D2330-20 history

• 2020 ASTM D2330-20 Standard Test Method for Methylene Blue Active Substances
• 2002 ASTM D2330-02 Standard Test Method for Methylene Blue Active Substances
• 1988 ASTM D2330-88(1995)e1 Standard Test Method for Methylene Blue Active Substances