18 N Phosphoric Acid TS—

This article is compiled based on the United States Pharmacopeia (USP) – 2025 Edition

Issued and maintained by the United States Pharmacopeial Convention (USP)

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Transfer 410.5 mL of phosphoric acid to a 1000-mL volumetric flask containing about 400 mL of water. Cool and dilute with water to volume._{(USP 1-May-2020)}