Optional Retirement Program (ORP) | ERS
You may use Optional Retirement Program (ORP) service credit to help you meet the Rule of 80 or at age 65 toward the 10-year requirement for retiree insurance. If you refunded your ORP account, you …
Understanding ORP: Oxidation-Reduction Potential
Oxidation Reduction Potential, or ORP, measures a substance's ability to oxidize or reduce another substance in a solution. In simpler terms, ORP is a way to quantify a solution's electron transfer …
What Does ORP Stand For and How Is It Measured?
Jan 12, 2026 · Oxidation-Reduction Potential (ORP) is a single measurement used to gauge the quality and cleanliness of water. It provides a value representing the solution’s overall capacity to …
What is ORP in Water and why does it matter for your health?
ORP stands for Oxidation-Reduction Potential. It’s a measurement used to assess the ability of water bodies like lakes and rivers to naturally purify themselves. ORP measures the water’s capacity to …
The Basics of Oxidation-Reduction Potential (ORP) - pHionics
Mar 11, 2021 · Oxidation-reduction potential, or ORP for short, is the measure of how likely a solution is to give or receive electrons given the right circumstances. Some common applications involve …
Field Measurement of Oxidation-Reduction Potential | US EPA
Jan 22, 2026 · This document describes procedures, methods and considerations to be used and observed when conducting field Oxidation-Reduction Potential (ORP) measurements in aqueous …
Oxidation Reduction Potential (ORP) - International Hydrogen …
A positive ORP indicates the presence of potential oxidizers, while a negative ORP indicates the presence of potential reducers. The measurement is done using an ORP meter, which includes a …
ORP Explained for Drinking Water | Why Negative ORP Matters – Vitev
What ORP Tells Us About Water While pH measures acidity vs alkalinity, ORP measures oxidation vs reduction potential — an indicator of antioxidant capability. Water with negative ORP has the …
Optional Retirement Program - Texas Higher Education Coordinating …
The Texas Higher Education Coordinating Board (THECB) provides statewide coordination for the Optional Retirement Program (ORP) administered by Texas public institutions of higher education.
ORP Drinking Water Standard: Redox Potential Impact on Quality
May 14, 2025 · One of the most important parameters in assessing water safety is the oxidation-reduction potential (ORP), also known as redox potential. ORP measurements help in evaluating …