6.2 GHS Container Labels and Safety Data Sheets (SDS)

6.2 GHS Container Labels and Safety Data Sheets (SDS)

Quick Answer: Under OSHA's Hazard Communication Standard (29 CFR 1910.1200(f) & (g)), chemical hazard information is delivered to workers through two primary mechanisms: standardized GHS Container Labels and 16-Section Safety Data Sheets (SDSs). Shipped labels must include six mandatory elements: Product Identifier, Signal Word ("DANGER" or "WARNING"), Hazard Statements, Precautionary Statements, Pictograms (red diamond border), and Supplier Identification. Safety Data Sheets follow a rigid 16-section sequence that must be readily accessible to employees during all work shifts without administrative delays or physical barriers.

In an industrial workplace, container labels provide immediate, visual, at-a-glance hazard warnings, while Safety Data Sheets serve as comprehensive technical reference encyclopedias for chemical properties, health hazards, exposure limits, PPE selection, and emergency response procedures. Mastering both components is essential for workplace chemical safety and regulatory compliance.

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|                  THE 6 MANDATORY GHS SHIPPED LABEL ELEMENTS                 |
|                                                                             |
|   +---------------------------------------------------------------------+   |
|   |  ACME CHEMICAL CO. - INDUSTRIAL SOLVENT X-100   [ PRODUCT IDENTIFIER ] | |
|   |                                                                     |   |
|   |      [ PICTOGRAM 1 ]       [ PICTOGRAM 2 ]       [ SIGNAL WORD ]    |   |
|   |       (Flame Icon)       (Exploding Chest)          "DANGER"        |   |
|   |                                                                     |   |
|   |  HAZARD STATEMENTS:                                                 |   |
|   |  - H225: Highly flammable liquid and vapor.                         |   |
|   |  - H350: May cause cancer through chronic inhalation.               |   |
|   |  - H304: May be fatal if swallowed and enters airways.              |   |
|   |                                                                     |   |
|   |  PRECAUTIONARY STATEMENTS:                                          |   |
|   |  - Prevention: Keep away from heat, sparks, open flames. No smoking.|   |
|   |  - Response: IF SWALLOWED: Immediately call Poison Center/Doctor.   |   |
|   |  - Storage: Store in a well-ventilated place. Keep cool.            |   |
|   |  - Disposal: Dispose of contents in accordance with local laws.     |   |
|   |                                                                     |   |
|   |  SUPPLIER IDENTIFICATION:                                           |   |
|   |  Acme Chemical Corp, 100 Industrial Pkwy, Cleveland, OH | (800)555-0199 |   |
|   +---------------------------------------------------------------------+   |
+-----------------------------------------------------------------------------+

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1. The Six Mandatory Elements of a GHS Shipped Container Label

Under 29 CFR 1910.1200(f)(1), chemical manufacturers, importers, and distributors must ensure that every container of hazardous chemicals leaving their facility is labeled, tagged, or marked with the following six standardized elements:

1. Product Identifier: The unique chemical name, commercial trade name, code number, or batch number used for the hazardous chemical. It must match the exact product identifier appearing on the chemical inventory and in Section 1 of the SDS.
2. Signal Word: A single standardized word used to indicate the relative level of severity of hazard:
   • "DANGER": Used for more severe hazard categories (e.g., Category 1 or 2 flammables, Category 1 acute toxins, carcinogens).
   • "WARNING": Used for less severe hazard categories (e.g., Category 3 flammables, Category 4 acute toxins, mild skin irritants).
   • Rule: Only one signal word may appear on a label. If a chemical possesses multiple hazards requiring both "DANGER" and "WARNING", only "DANGER" appears.
3. Hazard Statements: Standardized phrases assigned to a specific hazard class and category that describe the nature and degree of the chemical's hazards (e.g., "Causes severe skin burns and eye damage", "Toxic if inhaled", "Fatal if swallowed").
4. Precautionary Statements: Standardized phrases describing recommended measures to minimize or prevent adverse effects resulting from chemical exposure, improper storage, or handling. Precautionary statements are organized into four functional groups:
   • Prevention (e.g., "Wear protective gloves and eye protection", "Avoid breathing dust/fumes")
   • Response / First Aid (e.g., "IF ON SKIN: Wash with plenty of water", "In case of fire: Use CO2, dry chemical, or foam")
   • Storage (e.g., "Store locked up in a well-ventilated place", "Keep container tightly closed")
   • Disposal (e.g., "Dispose of contents/container to an approved hazardous waste facility")
5. Pictogram(s): Diamond-shaped graphical hazard symbols with a red square-on-point border, a white background, and a black symbol representing the specific hazard classes present.
6. Supplier Identification: The name, physical street address, and emergency telephone number of the chemical manufacturer, importer, or responsible party.

[!IMPORTANT] No Blank Diamonds Allowed: Under OSHA rules, blank red diamonds (pictogram borders with no black symbol inside) are strictly prohibited on labels. If a pre-printed label sheet has extra blank diamonds, they must be completely blacked out or overprinted to prevent worker confusion.

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2. The Nine GHS Hazard Pictograms

GHS establishes nine standardized hazard pictograms. Under OSHA's regulatory jurisdiction (29 CFR 1910.1200 Appendix C), eight pictograms are mandatory. The ninth pictogram—Environment (showing a dead tree and dying fish for aquatic toxicity)—is non-mandatory under OSHA because OSHA does not regulate environmental protection; however, it is enforced by the EPA and the Department of Transportation (DOT).

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|                     OSHA MANDATORY GHS HAZARD PICTOGRAMS                    |
|                                                                             |
|   [ 1. FLAME ]                    [ 2. FLAME OVER CIRCLE ]  [ 3. CORROSION ]|
|   - Flammables (Liq/Gas/Sol)      - Oxidizers (Gas/Liq/Sol) - Skin Corrosion|
|   - Pyrophorics & Self-Heating    - Intensifies fire        - Eye Damage    |
|   - Emits Flammable Gas           - Fire accelerant         - Corrosive to  |
|   - Self-Reactives / Peroxides                              |   Metals      |
|                                                                             |
|   [ 4. EXPLODING BOMB ]           [ 5. GAS CYLINDER ]       [ 6. SKULL ]    |
|   - Explosives                    - Compressed Gas          - Acute Toxicity|
|   - Self-Reactives (Severe)       - Liquefied Gas           - Fatal or Toxic|
|   - Organic Peroxides (Severe)    - Dissolved / Cryogenic   - Oral/Derm/Inh |
|                                                                             |
|   [ 7. HEALTH HAZARD ]            [ 8. EXCLAMATION MARK ]   [ 9. ENVIRON. ] |
|   - Carcinogenicity               - Irritant (Skin/Eye)     - Aquatic Tox   |
|   - Mutagenicity & Repro Tox      - Skin Sensitizer         - (Non-Mandatory|
|   - Respiratory Sensitizer        - Acute Tox (Cat 4 Harm)    under OSHA;   |
|   - Target Organ Tox (STOT)       - Narcotic / Drowsiness     EPA Enforced) |
|   - Aspiration Hazard             - Respiratory Irritant                    |
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Detailed Pictogram Hazard Class Reference Table:

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3. Secondary (Workplace) Container Labeling & the Immediate-Use Exemption

When chemicals are transferred from large primary containers (like a 55-gallon drum or 5-gallon carboy) into smaller secondary containers (such as squirt bottles, sprayers, beakers, or dip tanks), labeling rules apply under 29 CFR 1910.1200(f)(6).

Workplace Container Labeling Options:

Employers may choose one of two compliance paths for secondary containers:

1. Full GHS Label Elements: Replicate the product identifier, signal word, hazard statements, and pictograms from the original shipped label.
2. Alternative Workplace Labeling Systems: Use in-plant labeling systems (such as NFPA 704 Diamond or HMIS Color Bars) provided that the employer's written HazCom program ensures employees have immediate access to the specific physical and health hazards of the chemical.

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|               SECONDARY CONTAINER IMMEDIATE-USE DECISION TREE               |
|                                                                             |
|   Chemical transferred from labeled primary drum into secondary container    |
|                                     |                                       |
|   1. Was it transferred by the worker who will use it?                      |
|      [ NO ]  ---> MUST LABEL CONTAINER IMMEDIATELY                          |
|      [ YES ]                                                                |
|         |                                                                   |
|   2. Will it remain under the SOLE custody of that worker at all times?     |
|      [ NO ]  ---> MUST LABEL CONTAINER IMMEDIATELY                          |
|      [ YES ]                                                                |
|         |                                                                   |
|   3. Will the entire chemical volume be USED UP during THAT SINGLE SHIFT?   |
|      [ NO ]  ---> MUST LABEL CONTAINER IMMEDIATELY                          |
|      [ YES ]                                                                |
|         |                                                                   |
|   [ EXEMPT FROM LABELING UNDER 29 CFR 1910.1200(f)(8) IMMEDIATE-USE RULE ]  |
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The Strict 3-Prong Immediate-Use Exemption (29 CFR 1910.1200(f)(8))

An employer is not required to label a secondary portable container if and only if all three conditions are met:

1. The chemical is transferred into the container directly by the employee who will use it.
2. The container remains in the sole custody of that specific employee throughout the operation.
3. The chemical is completely used and exhausted during the work shift in which the transfer occurred.

[!WARNING] Loss of Immediate-Use Exemption: If a worker fills an unlabelled squirt bottle with cleaning solvent, sets it down on a workbench, and walks away for lunch—or hands it to a coworker—or leaves leftover solvent inside the bottle at the end of the shift, the exemption is instantly voided. The container is in violation of 29 CFR 1910.1200(f) and must be labeled immediately.

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4. The Standardized 16-Section Safety Data Sheet (SDS)

Under 29 CFR 1910.1200(g) and Appendix D, Safety Data Sheets must follow a strict, standardized 16-section sequence. Chemical manufacturers cannot alter the numbering or sequence of these sections.

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|                  STANDARDIZED 16-SECTION SDS ARCHITECTURE                   |
|                                                                             |
|   +---------------------------------------------------------------------+   |
|   | SECTION 1:  Identification (Product ID, manufacturer, emergency ph) |   |
|   | SECTION 2:  Hazard(s) Identification (GHS class, pictograms, signal)|   |
|   | SECTION 3:  Composition / Ingredients (Chemical names, CAS #s, %)   |   |
|   | SECTION 4:  First-Aid Measures (Symptoms, acute/delayed, treatment) |   |
|   | SECTION 5:  Fire-Fighting Measures (Extinguishing media, hazards)   |   |
|   | SECTION 6:  Accidental Release Measures (PPE, cleanup, containment) |   |
|   | SECTION 7:  Handling and Storage (Safe storage, incompatibilities)  |   |
|   | SECTION 8:  Exposure Controls / PPE (PELs, TLVs, engineering, PPE)  |   |
|   +---------------------------------------------------------------------+   |
|   | SECTION 9:  Physical and Chemical Properties (Flash pt, BP, LEL/UEL)|   |
|   | SECTION 10: Stability and Reactivity (Reactivity, incompatible mat.)|   |
|   | SECTION 11: Toxicological Information (Routes, LD50/LC50, carcinogen) |   |
|   +---------------------------------------------------------------------+   |
|   | * SECTION 12: Ecological Information (Aquatic toxicity) [EPA]       |   |
|   | * SECTION 13: Disposal Considerations (Waste characterization)[RCRA]|   |
|   | * SECTION 14: Transport Information (UN number, DOT class) [DOT]    |   |
|   | * SECTION 15: Regulatory Information (TSCA, SARA Title III) [EPA]   |   |
|   +---------------------------------------------------------------------+   |
|   | SECTION 16: Other Information (Preparation/revision date, HMIS/NFPA)|   |
|   +---------------------------------------------------------------------+   |
|   (* Sections 12-15 are non-mandatory under OSHA enforcement)               |
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Complete Breakdown of the 16 SDS Sections:

1. Section 1 — Identification: Chemical identity matching label; manufacturer/distributor contact info; 24-hour emergency phone number; recommended chemical uses and restrictions.
2. Section 2 — Hazard(s) Identification: Full GHS hazard classification; signal word; hazard statements; precautionary statements; required pictograms; hazards not otherwise classified (HNOC) such as combustible dust.
3. Section 3 — Composition / Information on Ingredients: Chemical name, common names, Chemical Abstracts Service (CAS) registry numbers, exact percentages or concentration ranges, and trade secret claims.
4. Section 4 — First-Aid Measures: Necessary first-aid instructions subdivided by exposure route (inhalation, skin contact, eye contact, ingestion); acute and delayed symptoms; recommendations for immediate medical attention.
5. Section 5 — Fire-Fighting Measures: Suitable (and unsuitable) extinguishing media; specific hazards arising from the chemical during a fire (e.g., toxic decomposition fumes); special protective equipment and precautions for firefighters.
6. Section 6 — Accidental Release Measures: Personal precautions, protective equipment, and emergency procedures; environmental precautions; methods and materials for containment, neutralizing, and cleanup.
7. Section 7 — Handling and Storage: Precautions for safe handling (hygiene, vapor control); conditions for safe storage including temperature ranges, ventilation needs, and specific chemical incompatibilities.
8. Section 8 — Exposure Controls / Personal Protection: OSHA Permissible Exposure Limits (PELs), ACGIH Threshold Limit Values (TLVs), NIOSH Recommended Exposure Limits (RELs); engineering controls (fume hoods, local exhaust); required PPE (respirators, glove polymers, eye protection).
9. Section 9 — Physical and Chemical Properties: Empirical physical data: appearance, color, odor threshold, pH, melting point, boiling point, flash point, evaporation rate, flammability limits (LEL/UEL), vapor pressure, vapor density, relative density, solubility, and autoignition temperature.
10. Section 10 — Stability and Reactivity: Chemical stability under ambient conditions; possibility of hazardous reactions/polymerization; conditions to avoid (static discharge, heat, shock); incompatible materials (e.g., strong oxidizers, acids); hazardous decomposition products.
11. Section 11 — Toxicological Information: Description of likely routes of exposure (inhalation, ingestion, skin/eye contact); acute and chronic toxicological symptoms; numerical toxicity measures (oral/dermal LD50, inhalation LC50); carcinogenicity determinations by IARC, NTP, or OSHA.
12. Section 12 — Ecological Information (Non-Mandatory for OSHA): Ecotoxicity data on aquatic organisms; persistence and degradability in soil/water; bioaccumulative potential; mobility in soil (regulated by EPA).
13. Section 13 — Disposal Considerations (Non-Mandatory for OSHA): Proper disposal practices; waste classification under the Resource Conservation and Recovery Act (RCRA); recycling possibilities; container disposal guidelines (regulated by EPA).
14. Section 14 — Transport Information (Non-Mandatory for OSHA): UN proper shipping name, UN identification number, DOT transport hazard class, packing group, environmental hazards (marine pollutants) (regulated by DOT).
15. Section 15 — Regulatory Information (Non-Mandatory for OSHA): Federal, state, and international chemical regulations, including TSCA inventory status, SARA Title III Section 302/313 reporting, EPCRA requirements, and California Proposition 65 (regulated by EPA/State agencies).
16. Section 16 — Other Information: Date of SDS preparation or latest revision; explanation of changes from previous versions; key acronyms; NFPA 704 / HMIS rating references.

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5. Employer Accessibility & 30-Year Record Retention Rules

Barrier-Free SDS Accessibility (29 CFR 1910.1200(g)(8))

Employers must maintain copies of Safety Data Sheets for all hazardous chemicals present in the facility. SDSs must be readily accessible during each work shift to employees when they are in their work areas.

• Physical Binders: May be maintained in designated, central yellow binders located on shop floors, provided they are never locked in supervisory offices.
• Electronic Systems Permitted: Employers may store SDSs electronically (via company intranet, cloud databases, or computerized workstations) only if:
  1. Workers have immediate, unrestricted access without requiring special supervisor passwords or clearance.
  2. Workers are thoroughly trained on how to navigate the electronic database.
  3. A reliable backup system is immediately available in the event of power outages, internet failures, or network disruptions (e.g., paper backup binders or offline local drives).
  4. In a medical emergency, hard copies can be transmitted immediately to emergency medical personnel.

30-Year Chemical Record Retention (29 CFR 1910.1020)

Under 29 CFR 1910.1020 (Access to Employee Exposure and Medical Records), chemical exposure records must be preserved for long-term health tracking:

• Employers must preserve all Safety Data Sheets (or a detailed historical chemical inventory recording the chemical identity, where it was used, and when it was used) for at least 30 years after the chemical is no longer in use.
• Personal worker exposure monitoring records (such as air sampling dosimeters or breathing zone sampling for toxic vapors) must also be preserved for at least 30 years.