ASTM G91
Standard Practice for Monitoring Atmospheric SO2 Deposition Rate for Atmospheric Corrosivity Evaluation
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 G91 is a standard practice for monitoring atmospheric SO2 deposition rate for atmospheric corrosivity evaluation. It provides a technical basis for tracking sulfur dioxide deposition in the environment, helping users understand conditions that may contribute to corrosion risk. By offering a consistent approach to this type of monitoring, the standard supports more reliable comparisons between locations, time periods, and exposure settings used in corrosion assessment and materials evaluation.
Purpose of ASTM G91
The purpose of ASTM G91 is to define a practical method for monitoring atmospheric SO2 deposition rate in support of atmospheric corrosivity evaluation. This makes it useful where environmental exposure conditions need to be characterized in a repeatable way. As an ASTM standard, it helps establish consistency in how deposition data are collected and interpreted, which can improve the quality of corrosion-related assessments and support more informed technical decisions.
Common use cases of ASTM G91
ASTM G91 is commonly used in atmospheric exposure programs, corrosion monitoring activities, and related quality control workflows where sulfur dioxide deposition is a relevant environmental factor. It may be applied when evaluating outdoor sites, comparing exposure severity, or supporting materials performance studies. The standard is especially relevant for users who need a structured way to document atmospheric conditions that can influence corrosion behavior over time.
Why ASTM G91 matters
ASTM G91 matters because consistent monitoring of SO2 deposition can reduce uncertainty in atmospheric corrosivity evaluation. Reliable data support better comparison of test locations, stronger documentation for compliance efforts, and improved confidence in corrosion assessments. For procurement, testing, and engineering teams, using a recognized ASTM standard can also help align methods across projects and improve the credibility of results used in product evaluation or risk reduction.
- Atmospheric SO2 deposition monitoring
- Corrosivity evaluation support
- Repeatable environmental data collection
- Exposure site comparison
- Corrosion assessment documentation
- Publication Date: 2018-06-11
- 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.