Plastics and Polymers

Yellowness Index of Plastics: Understanding Laboratory Testing Methods

By Trevor Henderson | Apr 24, 2024

The Yellowness Index of plastics is a key indicator of color quality and stability in manufacturing and material science

An image showing the yellowing of clear plastics over time, depicting a sequence of plastic samples that progressively turn yellow.

Guide to Laboratory Testing of Plastics and Polymers

By Trevor Henderson | Apr 5, 2024

A quick look at the sophisticated processes and equipment necessary to ensure the quality and performance of plastic materials

a collection of plastic products including cutlery, water bottles and toys

Recycling Numbers | Plastics | FTC Recycling Guidelines

By Editorial Team | Mar 14, 2023

Have you ever noticed the number inside the recycling symbol on bottles or other plastic recyclables? Do you know what these recycling numbers mean? At the bottom of almost any plastic container, inside the recycling symbol is a small number between 1 and 7. Each...

Testing for Bisphenol A (BPA)

By Editorial Team | Feb 21, 2023

Bisphenol A (BPA) is an industrial chemical used in the production of polycarbonate plastics and epoxy resins found in various consumer products, including food containers, water bottles, and thermal paper receipts. Due to its potential health risks, such as...

Phthalate Testing in Plastics and Polymers

By Editorial Team | Feb 3, 2023

Phthalates are colorless, odorless chemicals found in plastics and polymers including consumer products, toys, and even food containers. Phthalate consumption has been linked to birth defects, hormonal disruption, behavioral issues, fertility issues, obesity, and...