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The United States Pharmacopeial Convention (USP) is a non-profit organization that sets standards for the identity, strength, quality, and purity of medicines, food ingredients, and dietary supplements manufactured, distributed and consumed worldwide. USP <791> refers to the standardized test method for pH measurements used in the pharmaceutical, food and beverage, patient care, and dietary supplement industry.

A growing number of foods and beverages are sweetened with plant-based stevia (Rebaudioside A). In 2009, USP released standards that manufacturers can use to help ensure the quality and purity of the stevia ingredients they put in their products. When you take a medicine or supplement, you won’t get the therapeutic benefit unless the pill or capsule dissolves properly in your body. A medication or supplement that meets USP standards is able to pass tests that ensure it dissolves so your body can absorb it.

USP <791> is part of the Second Supplement to USP 37-NF 32. All prescription and over-the counter drugs sold in the United States, no matter where in the world they are made, must meet the USP quality standards that exist for that USP 37-NF 32. pH measurements within the pharmaceutical industry often reference USP<791>.

Thermo Scientific™ Orion™ pH meter kits are part of a high-quality pH test method designed to assist with compliance to USP <791> pH requirements.

Orion pH meter kits for USP <791>

Get the ultimate in versatility. Stunning, large color display provides slope and offset in calibration log. Perform up to a 6-point pH calibration, and customize interchangeable modules for future measurement requirements.

Backlit graphic screen displays the slope in the calibration log. Obtain offset value by exporting calibration log to a computer or printer, and perform up to a 5-point pH calibration.

Waterproof, IP67-rated housing for protection. Backlit graphic screen displays slope in the calibration log, and offset value obtainable by exporting calibration log to a computer or printer. Supports up to a 5-point calibration.