Chemical Safety; Safely Working with Chemicals @ Work & Home

Understand hazard communication and the right to know, and how OSHA's HazCom standard uses safety data sheets, container labeling, and a written program to protect workers.

Explore essential chemical safety terms, including forms of chemicals (solids, liquids, gases, dusts, fumes, fibers), hazardous vs nonhazardous materials, exposure and dermal absorption, containers, and flash point.

Understand how the globally harmonised system standardises hazard classification, labeling, and safety data sheets across countries. Discover SDS structure and toxicity metrics like LC50 and LD50.

Identify hazardous chemicals you may encounter and ensure training before exposure, with retraining for changes, and learn to use labels, safety data sheets, and the hazard communication program.

Participate in host employer and temporary agency training, review labels and safety data sheets, identify hazards, and follow safe work procedures in assigned areas; ask questions when unclear.

The written program explains how your company meets the hazard communications standard, detailing responsibilities for labeling containers, updating the chemical inventory, and communicating risks to users.

Maintain a hazardous chemical inventory with SDF sheets in a yellow binder posted prominently. List chemicals by identifier name and common names, ensure consistency, and inform supervision if missing.

Learn how the globally harmonized system requires unified labeling and safety data sheets, with new pictograms, hazard statements, and training to ensure compliant chemical safety at work and home.

Identify hazardous chemicals by physical and health hazards, apply the 2012 criteria for mixtures, and recognize acute and chronic health risks for safe work at home.

Explore routes of entry for chemicals: inhalation, injection, dermal absorption, and ingestion. Recognize common overexposure symptoms like eye tearing, skin changes, headaches, and dizziness.

We explore lethal dosing and decode acronyms like PEL, TWA, TLV, and IDLH, showing how OSHA and NIOSH set exposure limits for work and home.

Identify common chemical health hazards, including carcinogens like benzene, nickel, cadmium, radon, vinyl chloride, mercury, arsenic, and lead, which may cause cancer or birth defects.

Explore how chemicals are classified by hazard classes and categories by severity, including the ten health and sixteen physical hazard classes, under U.S. and DHS guidance.

Explore health hazard classifications for chemicals, including acute toxicity by oral, dermal, and inhalation routes, skin/eye damage and irritation, sensitization, reproductive toxicity, aspiration hazard, and target organ toxicity.

Explore physical hazard classification and the criteria that group items into divisions and categories, including explosives, flammable gases, oxidizing gases, gases under pressure, and flammable solids.

Explore continued physical hazards classification, including oxidizing liquids and solids and organic peroxides; note that many substances may be both health and physical hazards, such as mixing bleach with ammonia.

Use container labeling to prevent misidentification and reveal hazards like flammability, ensuring training and safety contact, while applying OSHA DHS six labeling parts to primary, secondary, stationary, and portable containers.

Identify six parts of a GHS primary container label, including the signal word, pictograms, manufacturer information, precautionary and hazard statements, and the product identifier, with carbon monoxide as an example.

Explain six-part container labeling with pictograms that signal chemical, physical, health, and environmental risks. Highlight nine pictograms, including corrosive, gas cylinder, oxidizer, flame, and toxic symbols.

Internal container labels, or secondary workplace labels, ensure in-house safety by using GHW-equivalent information or basic details, with common options like NFPA 704, HMIS, or CAT labeling.

Labeling systems use colors and numbers to show health, flammability, and physical hazards, PPE codes from A to K, chemical names, and NFPA 704 diamonds.

Cover four special labeling issues—small containers, supplier label problems, defaced labels, and exclusive control—and practical solutions like pull-out labels, replacement labels, and durable, clearly displayed labeling.

Safety data sheets provide essential safety information before using hazardous chemicals and outline emergency procedures. Organize SDSs alphabetically by identifier and follow OSHA/DHS formats with 16 sections in Appendix D.

Explore six common questions about safety data sheets (SDS), including updates and changes, access at remote sites, electronic copies with backups, and 30-year retention and retailer obligations under OSHA.

Review the first three parts of the safety data sheet, explaining product identifiers, manufacturer details, hazard identification, label elements, and composition, including concentration and trade secret considerations.

Explore section 2 of the SDS to understand hazard classification, showing four classes: respiratory and skin sensitization (category 1), reproductive toxicity (category 1b), and target organ toxicity (category 2).

Review the sds 16 parts, focusing on sections 4–8: first aid measures, firefighting measures, accidental release measures, handling and storage, and exposure controls with personal protection.

Review sections 9 through 11 of the SDS to understand physical and chemical properties, stability and reactivity, and toxicological information.

Review the SDS sections 12 through 16, covering ecological information, disposal considerations, transport information, and regulatory requirements such as OSHA, EPA, the Toxic Substances Control Act, and SARA 313.

Learn the hierarchy of control for chemical safety, from hazard elimination and substitution to engineering and administrative controls, and finally PPE, guided by hazard assessments and safer work practices.

Personal protective equipment is the last line of defense; fit, train, don and doff, inspect and replace gear, and use respirators, eye protection, gloves, and body protection suited to hazards.

Recognize spills and leaks, respond to small and large incidents, evacuate as needed, isolate and clean safely, and prepare with training, PPE, and emergency plans.

Address non routine items on multi-employer sites by informing contractors about hazardous chemicals and exchanging information through SDFs; review new products and train staff before use.