bluing agent

Medical term Special Collections

Blue dye put in the toilet tank at a drug-test collection site so the employee cannot dilute the specimen with toilet water.

Sources

• 49 CFR 40.43 What steps must operators of collection sites and collectors take to protect the security and integrity of urine collections? · U.S. Government Publishing Office (govinfo), Code of Federal Regulations, 2025 edition

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Study Special Collections

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