ASTM D4275

ASTM D4275 is the standard test method for determining butylated hydroxy toluene (BHT) in polymers of ethylene and ethylene-vinyl acetate (EVA) copolymers by gas chromatography. It provides a focused analytical approach for measuring this antioxidant in polymer materials, helping users verify formulation content and support consistent product evaluation. For manufacturers, laboratories, and quality teams, the method is useful when precise additive measurement matters for material control, compliance checks, and routine testing.

Purpose of ASTM D4275

The purpose of ASTM D4275 is to define a gas chromatographic test method for identifying and measuring BHT in ethylene-based polymers, including EVA copolymers. The standard gives a common technical basis for analysis so different laboratories can work from the same framework when assessing antioxidant content. This helps reduce variation in test results and supports reliable comparison of materials, especially where additive level is an important part of product specification, quality assurance, or incoming material review.

Common use cases of ASTM D4275

ASTM D4275 is commonly used in laboratory and quality control settings that evaluate ethylene polymers and EVA copolymers containing BHT. It may be applied during production monitoring, lot release testing, supplier verification, or troubleshooting when antioxidant content needs confirmation. The method is also relevant in analytical workflows that rely on gas chromatography to check additive levels in polymer samples and maintain consistent material performance across batches.

Why ASTM D4275 matters

This standard matters because controlled BHT measurement can support consistent polymer quality and more dependable purchasing and production decisions. ASTM D4275 offers a recognized testing reference that helps align analytical practice across organizations, which is important for compliance programs, internal specifications, and product evaluation. Using a common test method may also reduce disputes between buyers and suppliers by giving both sides a clear basis for reporting results and assessing material conformity.

• Gas chromatography-based BHT determination
• Ethylene polymers and EVA copolymers
• Supports quality control and verification
• Useful for routine analytical testing
• Helps standardize reporting and comparison