Are there any independent testing or certification organizations for perlite?

Feb 22, 2023 ... Vermiculite and perlite are ubiquitous in potting soils and seed-starting mixes, but there are some important differences between the two. Perlite is extracted through open-pit mining, a method commonly used for volcanic rocks. After extraction, the raw perlite ore undergoes processing, which ... Mar 24, 2022 ... There has been growing concern that perlite may be contaminated with asbestos, making perlite a dangerous product. According to the Perlite ... We're taking a look at perlite and sustainability and how it impacts the environment, economy, and society. While some people believe perlite can harm sensitive plants due to its fluoride content, there isn't much data to support such a claim. If you have no problem ... As a gentle-but-effective exfoliator, perlite removes dead skin and impurities from the outer layer of the skin to help create an immediate visible glow. Sep 22, 2023 ... Perlite is a white granular material, it is sterile, lightweight with a neutral pH level. Perlite is easy to work with. It is used in propagating cuttings. Feb 28, 2025 ... Here's how to choose: Use Perlite if: ✓ You need better drainage and aeration. ✓ Your seeds are prone to damping off. ✓ You're growing plants ... Mar 24, 2022 ... Perlite is great for soil because it prevents soil compaction and increases drainage. However, these articles go on to say that perlite absorbs and retains ... What is Perlite. Expanded perlite is a white, ultra-lightweight aggregate ranging from a very fine powder to an aggregate with a particle size up to 6mm in size ...