HCT Chemical Safety & SDS Knowledge 1 — Questions and Answers
Question 1: What does SDS stand for in the context of cleaning chemicals?
- Surface Disinfection Schedule
- Safety Data Sheet (Correct answer)
- Standard Dilution System
- Sanitizer Distribution Service
Correct answer: Safety Data Sheet
An SDS (Safety Data Sheet) provides comprehensive hazard, handling, storage, and emergency information for chemical products.
Question 2: Which section of an SDS provides first-aid measures in case of accidental chemical exposure?
- Section 1 – Identification
- Section 4 – First-Aid Measures (Correct answer)
- Section 8 – Exposure Controls
- Section 14 – Transport Information
Correct answer: Section 4 – First-Aid Measures
Section 4 of the SDS is standardized to cover first-aid procedures for inhalation, skin contact, eye contact, and ingestion.
Question 3: What is the danger of mixing bleach (sodium hypochlorite) with ammonia-based cleaners?
- The mixture becomes less effective at cleaning
- It produces toxic chloramine gas that can cause serious respiratory harm (Correct answer)
- The mixture turns an unusual color
- It damages cleaning cloths
Correct answer: It produces toxic chloramine gas that can cause serious respiratory harm
Bleach and ammonia react to form chloramine gases, which are toxic to the respiratory system even in small concentrations.
Question 4: When a cleaning chemical splashes into a technician's eyes, the immediate first step is to:
- Rub the eyes to remove the chemical
- Flush the eyes with clean water for at least 15 minutes and seek medical attention (Correct answer)
- Apply eye drops from the cleaning cart
- Cover the eyes and wait for the burning to stop
Correct answer: Flush the eyes with clean water for at least 15 minutes and seek medical attention
Continuous flushing for at least 15 minutes dilutes and removes the chemical to minimize tissue damage.
Question 5: Dilution ratios on cleaning product labels are important because:
- They are suggestions that can be ignored
- Using too much product wastes money and can leave harmful residues or damage surfaces (Correct answer)
- More concentrated solutions always clean better
- Labels only reflect minimum recommended concentrations
Correct answer: Using too much product wastes money and can leave harmful residues or damage surfaces
Over-concentration wastes product, may damage surfaces, and can leave chemical residues that pose health or safety risks.
Question 6: What type of personal protective equipment (PPE) should be worn when handling concentrated acids or alkaline degreasers?
- No PPE is needed for commercial cleaners
- Chemical-resistant gloves and eye protection at minimum (Correct answer)
- Only a dust mask
- Steel-toed boots only
Correct answer: Chemical-resistant gloves and eye protection at minimum
Concentrated acids and strong alkalis cause chemical burns on skin and eyes; gloves and eye protection are the minimum required PPE.
HCT Chemical Safety & SDS Knowledge 1
What does SDS stand for in the context of cleaning chemicals?