ASTM D281
Standard Test Method for Oil Absorption of Pigments by Spatula Rub-out
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 D281 is the Standard Test Method for Oil Absorption of Pigments by Spatula Rub-out, a technical document used to measure how pigments take up oil during a practical rub-out procedure. This matters because oil absorption can influence pigment handling, formulation behavior, and product consistency in coatings and related material evaluations. ASTM D281 provides a standardized way to compare results, supporting more reliable testing and quality control decisions.
Overview of ASTM D281
The ASTM D281 standard focuses on a specific test method for determining oil absorption in pigments using a spatula rub-out technique. Its main value is consistency: by applying a defined method, laboratories and manufacturers can better compare pigment performance under similar conditions. The standard is commonly used as a reference in pigment testing, helping users evaluate how a material behaves during formulation and whether it meets expected technical requirements.
Common use cases of ASTM D281
ASTM D281 is commonly used in pigment development, incoming material checks, and quality control workflows where oil absorption results help guide formulation decisions. It is relevant to laboratories testing dry pigments and related color materials, especially when a simple comparative method is needed. The standard may also support procurement and supplier qualification when buyers need a consistent test method for evaluating pigment performance before use in production.
Benefits of using ASTM D281
Using ASTM D281 helps create a clear, repeatable basis for testing and reporting oil absorption of pigments. That consistency can improve product evaluation, support compliance with internal specifications, and reduce uncertainty in material selection. For teams involved in formulation or quality control, the standard can make comparison between suppliers or production lots more reliable. ASTM D281 also helps align testing practices across laboratories and technical documents.
- Spatula rub-out test method
- Pigment oil absorption measurement
- Comparative quality control tool
- Useful for formulation assessment
- Supports consistent lab testing
- Publication Date: 2021-06-15
- 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.