5.2 Chemical Safety: Labels, SDS, Storage, Ventilation & Hazardous Waste
Key Takeaways
K.A.R. 28-24-6 requires every product to be in a labeled, closed container, kept clean so the label is legible and closed when not in use.
K.A.R. 28-24-13(a) requires ventilation that removes fumes, vapor and dust. The Board describes a well-ventilated salon as one where air moves freely with no build-up of fumes, vapor or dust.
A Safety Data Sheet has 16 standard sections. Section 8 covers exposure controls and PPE, and Section 7 covers handling and storage. Kansas specifically requires the SDS for each disinfectant (K.A.R. 28-24-10(c)).
Dust masks and N95 respirators trap particles, not vapors. Vapors are controlled with ventilation, closed containers and covered waste cans.
Never pour monomer, acetone or primer down a drain. Wipe small amounts of monomer onto a towel, bag it, and follow the label and SDS for disposal.
Quick Answer: Kansas requires every product to be kept in a labeled, closed container (K.A.R. 28-24-6), and the salon to be well ventilated so fumes, vapor and dust do not build up (K.A.R. 28-24-13). OSHA's Hazard Communication Standard requires labels and Safety Data Sheets (SDS), and each SDS has 16 sections. Kansas requires the SDS for each disinfectant to be on hand. Read the label before first use, label any container you fill, dispense small amounts, store products away from heat and flame, protect your eyes and skin, and never pour chemicals down the drain.
The Kansas Rules
| Rule | Requirement |
|---|---|
| K.A.R. 28-24-6(a) | All products in labeled and closed containers. Keep containers clean so the label is legible, and closed when not in use |
| K.A.R. 28-24-6(b) | Remove product without contaminating the unused portion. Discard the unused removed portion immediately in a covered receptacle |
| K.A.R. 28-24-10(c) | For each disinfectant, keep the SDS and the manufacturer-labeled container available and provide them to the Board on request |
| K.A.R. 28-24-13(a) | Establishments must be well lit and well ventilated by natural or mechanical methods that remove or exhaust fumes, vapor or dust |
| K.A.R. 28-24-14(a)(6) | No open waste receptacles |
| K.A.R. 28-24-14(a)(7) | No MMA monomer |
The Board's FAQ defines well ventilated: air moves freely, and there is no build-up of fumes, vapor or dust that could cause hazardous conditions. The owner may need to add ventilation depending on the salon's size and services. Kansas does not set a specific airflow figure.
Labels and the GHS
OSHA's Hazard Communication Standard (29 CFR 1910.1200) adopted the Globally Harmonized System (GHS) in 2012. Labels on hazardous chemicals must show:
- the product identifier;
- a signal word: "Danger" for more severe hazards or "Warning" for less severe ones;
- hazard statements, such as "Highly flammable liquid and vapor";
- pictograms: red-bordered diamonds, for example the flame for flammables, corrosion for skin burns and eye damage, exclamation mark for irritants and sensitizers, and health hazard for respiratory sensitizers or chronic effects;
- precautionary statements, such as "Keep away from heat" or "Wear eye protection";
- the manufacturer's name and contact information.
Secondary containers: when you pour acetone or alcohol from a gallon into a pump bottle, the smaller container must also be labeled with the product name and its hazards. OSHA allows an exception only for a portable container used immediately by the person who filled it. Kansas requires every product to be labeled anyway.
Tip
NTN's sample practical question: you receive a new product, so what do you do first? Thoroughly read the label. The label and SDS tell you how to use, store and dispose of it and what protection to wear.
The 16-Section Safety Data Sheet
| # | Section | # | Section |
|---|---|---|---|
| 1 | Identification | 9 | Physical and chemical properties (e.g., flash point) |
| 2 | Hazard identification | 10 | Stability and reactivity |
| 3 | Composition / ingredients | 11 | Toxicological information |
| 4 | First-aid measures | 12 | Ecological information |
| 5 | Fire-fighting measures | 13 | Disposal considerations |
| 6 | Accidental release (spills) | 14 | Transport information |
| 7 | Handling and storage | 15 | Regulatory information |
| 8 | Exposure controls / personal protection | 16 | Other information (date prepared or revised) |
SDSs must be readily accessible to workers during every shift. Keep them in a binder or a reliable electronic system that everyone can reach.
Vapors vs. Dust
- Vapors are the gas form of liquids that evaporate at room temperature, such as acetone, monomer, polish solvents and primer. Control them with ventilation, closed containers, small working amounts in covered dappen dishes, and covered waste cans, since soaked cotton and towels keep releasing vapor.
- Dust is particles from filing acrylic, gel, dip and natural nail. Control it with light filing, source-capture tables, cleaning up dust with a damp towel (nail and neck dusters are prohibited), and a properly fitted dust mask or NIOSH-approved N95 respirator when needed.
Dust masks filter particles, not vapors. An N95 does not stop acetone or monomer fumes. For vapors, rely on ventilation, lids and small amounts. The NTN implements list names dust masks and safety goggles. Goggles or safety glasses protect the eyes from splashes such as acid primer and from flying clippings and dust.
Key Chemicals and Their Hazards
| Product | Main hazards | Safe handling |
|---|---|---|
| Acetone | Highly flammable (flash point about −4°F / −20°C). Dries skin | Away from heat and flame. Small amounts in a covered container. Ventilation |
| Monomer liquid (EMA) | Vapors. Skin sensitizer (allergic contact dermatitis with repeated skin contact) | Keep off skin. Cover the dappen dish. Never return used liquid to the bottle |
| Acid primer (methacrylic acid) | Corrosive to skin and eyes | Tiny amount, nail plate only. Wear eye protection. Flush skin or eyes with running water |
| Cyanoacrylate adhesive and resin | Bonds skin instantly. Cotton can react with it and give off heat | Keep off skin. Don't use cotton balls to apply it. Close caps |
| Polish, base and top coat | Flammable solvents | Keep capped. Away from heat |
| Disinfectant concentrates | Skin and eye irritation | Gloves and goggles when mixing. Measure. Follow label |
Gloves: Kansas's blood-exposure definition allows single-use nitrile, vinyl or latex (K.A.R. 28-24-1(o)). For chemical work with monomers and solvents, nitrile holds up far better than latex or vinyl, and it avoids latex allergy. Change gloves that are torn or contaminated.
Overexposure signs: headache, dizziness, itchy or watery eyes, irritated nose or throat, and skin rashes. They mean you need better ventilation, less product, closed containers and better technique. Repeated skin contact with monomer, uncured gel or primer is the main cause of allergic reactions in nail professionals.
Safe Storage
- Store products in their original labeled containers, tightly closed, in a cool, dry place away from sunlight, heat and open flame.
- Keep incompatible products apart and follow the storage section (7) of each SDS.
- Keep only the quantities you need at the station.
- Store monomer and primer where they cannot tip into the kit or onto clean items.
Hazardous Waste Disposal
- Never pour monomer, primer, acetone or other solvents down a sink or toilet.
- Small amounts of leftover monomer: wipe them onto a paper towel or absorbent material, place it in a sealable plastic bag, and put it in a covered waste can. Some manufacturers suggest mixing it with polymer powder to harden first. Follow the label and SDS.
- Solvent-soaked cotton and wipes go into a covered, lined receptacle. Empty it frequently, because solvent-soaked waste in an open can raises vapor levels and fire risk.
- Blood-contaminated waste is double-bagged (section 5.1). Sharp items go in a sharps container (K.A.R. 28-24-8(b)).
- Large quantities of unwanted chemicals are disposed of as the SDS (Section 13) and local waste authorities direct.
A new bottle of primer arrives at the salon. According to NTN's sample practical question, what should the technician do first?
Smell the product to judge its strength
Test a drop on her own skin
Read the label thoroughly
Pour it into an unlabeled dropper bottle for the station
Which Safety Data Sheet section describes exposure limits, engineering controls and personal protective equipment?
Section 8
Section 2
Section 4
Section 13
A technician wears a paper dust mask while doing acrylic fills and says it protects her from monomer fumes. Is she correct?
Yes, because paper dust masks filter both particles and vapors
Yes, if the mask is changed every hour
No, because dust masks trap particles such as filing dust but not vapors; vapors are controlled with ventilation, closed containers and covered waste cans
No, because dust masks are prohibited in Kansas salons
How should a technician dispose of a small amount of leftover acrylic monomer at the end of a service?
Pour it back into the original monomer bottle
Wipe it onto a paper towel, seal it in a plastic bag, and discard it in a covered waste receptacle
Rinse it down the manicure sink with plenty of water
Leave the dappen dish uncovered overnight so the liquid evaporates
Sections you finish are checked off in the contents.