Our first oxidized pH samples are beautiful isaiah.robertson · January 9, 2025 · If this is your first time seeing an oxidized pH being measured, you’re not alone. It’s a first for this lab too! We’ve enjoyed watching the color change from dull gray to red. Sonja Peterson ’25 mixes soil samples with water in an SCSC lab on Tuesday, Nov 05, 2024, in College Station, Texas. (Michael Miller/Texas A&M AgriLife) Sonja Peterson ’25 tests the pH of soil samples in an SCSC lab on Tuesday, Nov 05, 2024, in College Station, Texas. (Michael Miller/Texas A&M AgriLife)