ASTM D7742
Standard Practice for Determination of Nonylphenol Polyethoxylates (NPnEO, 3 ≤ n ≤ 18) and Octylphenol Polyethoxylates (OPnEO, 2 ≤ n ≤ 12) in Water by Single Reaction Monitoring (SRM) Liquid Chromatography/ Tandem Mass Spectrometry (LC/MS/MS)
Available Formats:
- Availability: Immediate Download
- Language: English
- License Type: Single User
- Updates: Not Included
- Availability: Request Quote
- Language: English
- License Type: Enterprise / Multi User
- Updates: Included
About This Item
ASTM D7742 is a standard practice for determining nonylphenol ethoxylates and octylphenol ethoxylates in water using single reaction monitoring liquid chromatography/tandem mass spectrometry. It provides a focused analytical framework for identifying and measuring these compounds in aqueous samples with a defined LC/MS/MS approach. ASTM D7742 is useful for laboratories and technical teams that need a consistent method for monitoring these target substances in water and supporting quality control or compliance-related testing.
Overview of ASTM D7742
This ASTM standard addresses the determination of NPnEO and OPnEO homologs in water, covering nonylphenol ethoxylates with 3 to 18 ethoxy units and octylphenol ethoxylates with 2 to 12 ethoxy units. Its technical context is centered on a targeted LC/MS/MS workflow using single reaction monitoring, which is commonly selected for selective and sensitive analysis. ASTM D7742 helps establish a clear, repeatable approach for laboratories that need to measure these compounds in water with a defined analytical practice.
Common use cases of ASTM D7742
ASTM D7742 is commonly used in analytical laboratories that test water samples for nonylphenol ethoxylates and octylphenol ethoxylates. It fits workflows involving LC/MS/MS instrumentation, sample preparation, and targeted measurement of specific ethoxylate homologs. The standard is relevant when a consistent method is needed for routine monitoring, method comparison, or product and process evaluation involving water quality. ASTM D7742 is especially useful where laboratory results must be technically defensible and aligned to an established ASTM practice.
Benefits of using ASTM D7742
Using ASTM D7742 can improve consistency in how target ethoxylates are identified and measured in water. A standardized practice supports better comparability between laboratories, more reliable quality control, and clearer procurement or compliance decisions. It also helps reduce ambiguity in analytical reporting by defining a specific LC/MS/MS-based approach. For organizations that rely on repeatable water testing, ASTM D7742 provides a practical reference for method selection and performance alignment.
- Targeted analysis of NPnEO and OPnEO in water
- LC/MS/MS with single reaction monitoring
- Supports repeatable laboratory workflows
- Useful for quality control and technical review
- Defined ASTM practice for water testing
- Publication Date: 2024-05-14
- Publisher: ASTM
Need This Standard?
Request a personalized quote today to receive the latest edition in PDF or other available formats.
Need This Standard?
Request a personalized quote today to receive the latest edition in PDF or other available formats.
Summarize with AI
Get quick summaries using your favorite AI engine.
Online Standart Disclaimer
OnlineStandart.com is an authorized reseller of international standards, operating through partnerships with authorized distributors. We do not own the copyrights or trademarks of the standards we sell, including but not limited to those of API, ASHRAE, BSI, SAE, ASTM, IEEE, IEC, ASME, ISO, and others.
All product names, logos, and brands are the property of their respective owners and are used for identification purposes only; their use does not imply endorsement. OnlineStandart.com is not affiliated with or endorsed by any standards development organization unless explicitly stated. The content of this document is for informational purposes only and is intended to promote our licensed reselling services.
Online Standart does not host, distribute, or link to free, unlicensed, or uncertified copies of copyrighted standards. Every document we deliver is a licensed copy obtained through authorized channels and supplied with full licensing documentation. The “Free PDF Download” option on our product pages refers to this free informational document — never to a free copy of any standard.