ASTM D4590
Standard Test Method for Colorimetric Determination of p-tert-Butylcatechol In Styrene Monomer or AMS (α–Methylstyrene) by Spectrophotometry
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About This Item
ASTM D4590 is the standard test method for colorimetric determination of p-tert-Butylcatechol in styrene monomer or AMS (α-Methylstyrene) by spectrophotometry. It provides a practical laboratory approach for measuring this additive or inhibitor in specified monomers, helping support product consistency and quality control. By defining a recognized testing framework, the standard assists users who need reliable analytical results for material evaluation, compliance work, or routine verification in production and procurement settings.
What is ASTM D4590?
This ASTM standard focuses on a colorimetric test method that uses spectrophotometry to determine p-tert-Butylcatechol in styrene monomer or AMS (α-Methylstyrene). In practical terms, ASTM D4590 offers a documented procedure for analytical measurement of a specific chemical component in these materials. It is intended for users who need a standardized way to assess content through laboratory instrumentation, supporting repeatable results and clearer technical communication between buyers, suppliers, and testing labs.
Where is ASTM D4590 used?
ASTM D4590 is commonly used in laboratories that analyze styrene monomer or α-Methylstyrene materials, especially where p-tert-Butylcatechol content must be checked during production, incoming inspection, or product release. It is relevant to quality control workflows that rely on spectrophotometric testing and colorimetric measurement. The standard may also support procurement and specification review when a defined analytical method is needed to verify material condition or inhibitor level in these monomer systems.
Why is ASTM D4590 important?
This standard matters because it helps create consistency in how p-tert-Butylcatechol is measured in styrene monomer and AMS. A recognized test method reduces ambiguity in lab reporting, supports traceable quality control, and can help limit disputes over analytical results. ASTM D4590 is also useful when reliable data are needed for material acceptance, process monitoring, or technical evaluation, since standardized testing generally improves confidence in comparison and decision-making.
- Colorimetric determination by spectrophotometry
- Targets p-tert-Butylcatechol measurement
- Applies to styrene monomer and AMS
- Supports lab testing and quality control
- Useful for standardized analytical reporting
- Publication Date: 2022-11-14
- Publisher: ASTM
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