2.5 Safety Data Sheets (SDS) & Chemical Safety

What an SDS Is and Why Salons Must Have Them

A Safety Data Sheet (SDS) is a standardized, manufacturer-provided document that explains the hazards of a chemical product, its ingredients, safe handling, storage, exposure controls, and emergency measures. SDS replaced the older Material Safety Data Sheet (MSDS) format under the globally harmonized Hazard Communication Standard (HCS, 29 CFR 1910.1200), which OSHA updated to align with the Globally Harmonized System (GHS).

Under the HCS, employers — including salon owners — must:

1. Maintain an SDS for every hazardous chemical product in the workplace (acrylic monomer, gel, polish, acetone, disinfectants, lotions).
2. Keep SDS readily accessible to all employees during their work hours — not locked away.
3. Train employees on how to read an SDS and on the hazards of the products they use.
4. Maintain labels on every primary and secondary container.

The 16 SDS Sections

Every SDS follows the same 16-section order. You do not need to memorize every title, but you should know the order and the purpose of the sections you will use in an incident.

The Two Sections You Will Actually Use

• Section 4 (First-aid measures) — tells you what to do if a product splashes in an eye, contacts skin, is inhaled, or is swallowed. This is the section you reach for during an incident.
• Section 8 (Exposure controls / PPE) — tells you the permissible exposure limit, the ventilation needed, and the gloves, mask, or eye protection required.

How to Read an SDS for a Nail Product

Suppose you open a new bottle of gel adhesive. Before you use it, you should:

1. Check Section 2 (Hazard identification) for the signal word and pictograms — flammable, skin sensitizer, eye irritant.
2. Read Section 4 (First-aid) so you know the eye-contact and skin-contact response before anything goes wrong.
3. Read Section 7 (Handling and storage) for the storage temperature and incompatibilities.
4. Read Section 8 (Exposure controls / PPE) for the required gloves and ventilation.

Where SDS Must Be Kept

SDS must be accessible to all employees during work hours, either in a physical binder kept in a known location in the salon or in an electronic system that any employee can reach without barriers. They cannot be locked in an office, stored off-site, or hidden behind a login only a manager can open. If an OSHA inspector or an employee asks to see the SDS for acetone, the salon must produce it immediately.

Hazard Communication Standard in Plain Terms

The HCS rests on a simple idea: employees have a right to know what chemicals they work with and how to protect themselves. That right is delivered through labeled containers, accessible SDS, and training. A salon that fails any of these is out of compliance and exposes its workers to preventable injury.

Safe Handling and Storage of Nail Chemicals

Acetone

• Highly flammable (flash point well below room temperature).
• Store in a closed, labeled container away from heat, sparks, open flame, and UV-curing lamps.
• Use in small working amounts; do not keep large quantities open on the table.
• Keep the work area ventilated to limit vapor inhalation.

Acrylic Monomer (Liquid)

• Flammable and a skin sensitizer.
• Store in a cool, dry area with the cap closed; vapors can build up in a closed, warm cabinet.
• Keep separate from oxidizers and strong acids.

Gels and Polishes

• Keep containers closed when not in use to limit vapor and prevent spillage.
• Store away from direct sunlight and heat to preserve product integrity.

Disinfectants

• Store concentrates separately, out of reach of clients, and follow the label for shelf life and dilution.

Common Exam Traps

• MSDS is the old name. The current term is SDS; some exam items use both to check whether you recognize the update.
• Locked-away SDS are non-compliant. Accessible during work hours is the requirement.
• Acetone storage near a UV lamp or heat source is a classic hazard question — flammables go in closed, labeled containers away from ignition sources.