Hang this poster beside the designated waste area in the laboratory or prep room.
What is on the poster
From the day it becomes waste to the day a qualified vendor collects it.
Do
- Keep waste containers closed except when adding waste.
- Store it in a designated, restricted-access area of the lab.
- Put liquid waste in secondary containment: a pan or tray.
- Store wastes by compatibility.
- Use only approved safety cans for flammable waste.
- Tag every waste not in its original container.
- Not sure? Ask your Chemical Hygiene Officer.
Don't
- Mix incompatible chemicals, or store them near each other.
- Pour chemicals down a sink, or put them in the trash.
- Treat chemical waste in any way.
- Let volatile chemicals evaporate.
- Leave waste containers in hallways or public areas.
- Move a container with crystals or solids forming in or on it.
Dried or crystallized picric acid can explode. Do not move the bottle: call your Chemical Hygiene Officer or emergency personnel.
Waste leaves only with a qualified vendor, to an authorized facility, on a manifest the district keeps. Never in a staff car.
Built to the Science Safety Teaching Standard
This poster carries the SSTS mark. Like every Science Safety course, it is built to the Science Safety Teaching Standard (SSTS): every rule on it is taken from the body that governs it, at its current edition, and the source is printed on the poster, so you can check it yourself.
Stay current
When you get this poster, it is saved to your Science Safety account. If we revise the poster, or the Chemical Safety Management Certificate for K-12 Schools module it comes from changes, we will email you, and the latest version will be waiting under Downloads in your account. Every revision carries its revision number and date at the bottom of the poster, so you can tell at a glance whether the copy on your wall is current.
Printing and hanging
- One-page PDF, US letter (8.5 by 11 inches).
- White background, so it prints clearly on any office or classroom printer without using much ink.
- Hang it beside the waste accumulation area.
- The QR code in the blue title band opens this page, so anyone can get their own copy.
- The QR code at the bottom opens the Chemical Safety Management Certificate for K-12 Schools module.
Learn more
The Chemical Safety Management Certificate for K-12 Schools module teaches the full topic this poster comes from.
Sources:
- Chemical Safety Guide – National Institutes of Health (reviewed October 2, 2026)
- 40 CFR 262.14, Conditions for exemption for a very small quantity generator – U.S. Environmental Protection Agency (reviewed October 2, 2026)
Poster SSP-0061, Rev. 1, October 2026.
