ASTM E1439

ASTM E1439 is the ASTM standard guide for conducting the Frog Embryo Teratogenesis Assay-Xenopus (FETAX), a method used to evaluate developmental effects in frog embryos under controlled laboratory conditions. It provides a structured framework for carrying out the assay and interpreting results consistently. For organizations involved in biological testing, this standard helps support reproducible procedures, clearer comparisons, and more reliable quality control when assessing potential developmental impacts.

What is ASTM E1439?

ASTM E1439, officially titled Standard Guide for Conducting the Frog Embryo Teratogenesis Assay-Xenopus (FETAX), describes a laboratory guide for performing a frog embryo teratogenesis test using Xenopus. As a guide, it is intended to help users apply a consistent approach to the assay rather than define a product specification. The standard is useful for structuring test conditions, handling embryos, and evaluating outcomes in a repeatable way. It supports technical consistency in developmental toxicity screening and related biological assessment workflows.

Where is ASTM E1439 used?

This standard is commonly used in laboratory environments that conduct embryo-based biological testing, especially where Xenopus models are part of the evaluation program. ASTM E1439 may be used in research, environmental assessment, or product testing workflows that need a defined procedure for observing teratogenic effects. It is most relevant when labs want a recognized guide for planning the assay, maintaining consistency between tests, and documenting results in a way that supports comparison and review.

Why is ASTM E1439 important?

ASTM E1439 matters because it helps bring consistency to a sensitive biological test that can be used in safety evaluation and quality-focused research. By following a recognized ASTM standard, users can improve repeatability, reduce procedural variation, and support more dependable data interpretation. That can be especially important when test outcomes may influence compliance decisions, product evaluation, or risk assessment. For procurement and laboratory use, the standard also helps define a clear technical reference for the assay.

• Frog embryo teratogenesis assay guidance
• Xenopus-based laboratory procedure
• Developmental effects evaluation
• Repeatable test conditions
• Support for documented results