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Laboratory Safety Protocols Flashcards

7 cards from real CCIL practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Laboratory Safety Protocols flashcards as text

  1. Which type of glove material provides the best resistance to concentrated sulfuric acid?

    Answer: Neoprene or butyl rubber

    Neoprene and butyl rubber offer superior resistance to strong mineral acids like concentrated sulfuric acid compared to latex, nitrile, or vinyl.

  2. What is the purpose of a Laboratory Chemical Hygiene Plan (CHP)?

    Answer: To describe procedures, equipment, and work practices that protect workers from hazardous chemicals

    A CHP is a written program required by OSHA's Lab Standard that outlines protective measures for handling hazardous chemicals.

  3. What does a purple or ultraviolet (UV) Biohazard warning label on a laboratory refrigerator indicate?

    Answer: Biohazardous specimen or material storage

    The universal biohazard symbol on refrigerators indicates the unit contains biological specimens or materials that may pose an infection risk.

  4. Which segregation rule applies to storing perchloric acid in a laboratory?

    Answer: Store separately from all organic materials and reducing agents

    Perchloric acid is a strong oxidizer that reacts violently with organic compounds and must be stored completely segregated from them.

  5. A laboratory safety inspection reveals that a sharps container is three-quarters full. The correct action is to:

    Answer: Seal and replace the container immediately

    Sharps containers should be sealed and replaced when they reach the fill line (typically 75% full) to prevent needlestick injuries.

  6. Under standard laboratory biosafety levels, BSL-2 conditions are appropriate for work involving:

    Answer: Agents associated with moderate individual risk such as hepatitis B virus

    BSL-2 is designated for moderate-risk agents like hepatitis B that pose disease risk if accidentally ingested or through percutaneous exposure.

  7. When diluting a concentrated acid with water in a laboratory, the correct technique is to:

    Answer: Add acid to water slowly while stirring

    Acid must always be added to water — never water to acid — to prevent violent exothermic reactions and spattering.

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Sources & references

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  1. ccil.com — Eligibility, renewal, score validity, test delivery, exam format, time limit · verified Oct 2026