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Reading a safety data sheet

Verifiedintermediate6 min

Which of the sixteen SDS sections actually change your protocol, and what to extract from each.

Every chemical you use has a Safety Data Sheet, and you should read four of its sixteen sections before you handle it.

Section 2 — Hazard identification. Pictograms, signal word, and hazard statements. This is your five-second summary.

Section 4 — First aid. Know what to do for skin, eye, inhalation, and ingestion exposure before you open the bottle, not while someone is at the sink.

Section 7 — Handling and storage. Incompatible materials, ventilation requirements, temperature limits.

Section 8 — Exposure controls and PPE. Which gloves (nitrile and latex are not interchangeable, and neither stops everything), what eye protection, and whether a fume hood is required.

Also worth extracting: Section 10 for reactivity — the incompatibility list is what stops the accidental chlorine gas — and Section 13 for disposal, which you need for your protocol anyway.

Attach the SDS for every chemical to your project documentation. A risk assessment that says "wear gloves" without naming the glove material has not really been done.

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