ES&H Manual



6610 Appendix T3

Chemical Labeling, Storing, and Transporting Requirements



Jefferson Lab has determined that working with chemicals carries an unmitigated Risk Code >2. At a minimum all tasks requiring chemicals are discussed with the supervisor prior to commencement of work. An Operational Safety Procedure (OSP) is written for work considered to be Risk Code >2 in accordance with ES&H Manual Chapter 3210 Work Planning, Control, and Authorization Process.


1.0          Purpose


Jefferson Lab recognizes that chemicals can be hazardous. Minimum labeling, storage, and transportation requirements have been established for use when working with any that fall into that category. These requirements are over and above those listed on a chemical’s safety data sheet (SDS).


2.0          Scope


It is recognized that listing the requirements for every chemical used at Jefferson Lab would be prohibitive; it is therefore required that qualified chemical workers read and follow the requirements/recommendation listed on a chemical’s SDS. This procedure defines actions Jefferson Lab requires in addition to those listed on the SDS.


This appendix’s process steps are performed in coordination with ES&H Manual Chapter 6610 Chemical Hygiene Program.


3.0          Responsibilities

NOTE:           Management authority may be delegated at the discretion of the responsible manager.


3.1           Qualified Chemical Worker

·       Follow the requirements/recommendations listed on the SDS.

·       Ensure all chemicals are labeled, stored, and transported in accordance to the requirements of this appendix. Contact the SDS Coordinator for more information.


3.2           Industrial Hygiene

·       Perform area hazard evaluations and provide signage as appropriate.


3.3           SDS Coordinator

·       Inform Jefferson Lab Stockroom of the appropriate chemical content labels that are to be made available.


3.4           Stockroom

·       Maintain supply of chemical content labels and National Fire Protection Association (NFPA) 704 hazard diamond stickers.

·       Maintain or make available a supply of compatible material containers for transfer of chemicals.


4.0          Process Steps


Unless otherwise noted anyone may perform the process steps listed below.


4.1           Labeling and Signage

Containers, piping, rooms, cabinets, refrigerators, etc. used to store or transfer chemicals are appropriately labeled. Hazard evaluations determine signage and labeling requirements. Contact the Industrial Hygiene to schedule an evaluation.  


Examples of chemical hazard signage include:

Example 1:

Flammable Storage Area Danger Sign

Example 2:

Acid Storage Area Danger Sign

Example 3:

Extremely Hazardous – Highly Toxic Danger Sign


4.1.1      Chemical Containers

All chemical containers are required to be labeled.  Labels provided by chemical manufacturers must remain on containers. Manufacturer’s labels will container the following information (see figure 1 for label example):

·       Product Identification and Supplier information

·       Precautionary statements and measures to be taken to minimize or prevent adverse effects

·       First aid information

·       Pictograms to alert chemical users to the chemical hazards to which they are exposed. There are nine pictograms that represent distinct hazards (see figure 2 for pictogram information)

·       Severity of hazard using signal words: “Danger” or “Warning”

o   Signal word Danger implies a higher hazard than Warning

·       Describe the nature of the hazards

·       Describe directions for use

Figure 1: example manufacturer label

Figure 2: Nine pictograms found on manufacturer containers and SDSs



       NFPA 704 Hazard Diamond Labels must be used when chemicals are poured from a manufacturer bottle into a new container.



Step 1:         Obtain a NFPA 704 Hazard Diamond Label from the Jefferson Lab Stockroom. See Webstock for ordering information.



Chemical Name: ________________________



Step 2:         Review the chemical’s SDS or consult with the SDS Coordinator to determine hazard ratings.


Step 3:         Fill in the label (include chemical name and hazard ratings). See Section 5.0 References Table 2 – Rating Summary.


Step 4:         Affix label to chemical container.



4.1.2      Piping

Piping containing gases or liquid must be marked with contents per ANSI/ASME A13.1-2015 using following scheme:


Figure 1 - Designation of Colors


Source: https://www.graphicproducts.com/articles/ansiasme-a131-pipe-labeling-requirements/



Figure 2 - Location of Identification Markers

Source: https://www.graphicproducts.com/articles/ansiasme-a131-pipe-labeling-requirements/



Figure 3 - Size of Legend Letters

pipe marker label size

Source: https://www.graphicproducts.com/articles/ansiasme-a131-pipe-labeling-requirements/


Contact the Industrial Hygiene for piping label requirements.


4.2           Storage

The SDS Coordinator keeps a record of all chemical storage areas at Jefferson Lab and performs annual inspections to ensure proper storage techniques. 

Contact the Industrial Hygiene for a determination regarding new or unique storage requirements. The minimum requirements are:


4.2.1      Chemical Containers

It is preferred that chemicals be stored in their original container. If transfer is required an approved container and/or compatible material is used. 

·       Obtain containers from Jefferson Lab Stockroom.

·       Visually inspect a container’s integrity prior to transfer. Do not use a container if it is dented, punctured, cracked or otherwise damaged. 

·       Ensure appropriate labeling.

·       Store only the minimum amount of chemical required.

·       Keep container closed, and caps and lids securely tightened, when not in use.


REMEMBER: Use grounding and bonding techniques to prevent static build-up particularly while performing transfer operations between containers. Contact the Industrial Hygiene if you need assistance with this operation.


4.2.2      Designated Storage Areas

When not in use, chemicals are stored in designated storage areas constructed of compatible material in accordance with:

·       SDS requirements/recommendations

·       The Compatibility Table (located on flammable storage cabinets) 

·       Direction from the Industrial Hygiene           Carcinogens/Poisons

A designated area is required for these chemicals. The area may consist of a glove box, a portion of the laboratory, or the entire laboratory.

·       Access is restricted by lock and key (or equivalent) and posted with “Authorized Personnel Only” warning. 

·       Only Qualified Chemical Workers, trained in the hazards and safe handling requirements of the carcinogens/poisonous chemical, may access the designated area. 


4.2.3      Cabinets

When required/recommended by the SDS, chemicals are stored in designated storage cabinets constructed of appropriate material. Do not open a cabinet if there is evidence of damage, leakage, or open containers. Contact the Industrial Hygiene (x7882) for assistance.  Purchase: Follow the process steps below to obtain an appropriate cabinet.


Step 1:         Contact the Industrial Hygiene regarding purchase recommendations/requirements.

Step 2:         Order the cabinet through Jefferson Lab Stockroom. 

Step 3:         Set-up Flammable Storage Cabinet – must be grounded prior to use by a qualified technician or facilities management. Use the Facility Management Service Request System to request installation.           Flammables Storage Cabinets

Flammable chemicals are stored in flammable storage cabinets in accordance with the SDS recommendations and away from ignition sources. Flammables storage cabinets meet National Fire Protection Association (NFPA) 30 – Flammable and Combustible Liquids Code specifications; and are used according to manufacturer’s instructions. When cold storage is required, explosion-proof refrigerators clearly labeled “NO FOOD” are used.



·       Do not store paper, cardboard, or other combustible material in or on a flammable storage cabinet.

·       Do not store small cylinders of compressed or liquefied gases in flammable storage cabinets.

·       Refer to Table 1: NFPA Flammability Classes (below) to determine a chemical’s classification.


Table 1: NFPA Flammability Classes

Flash Point

Boiling Point


<37.8°C (100°F)


Class I

<22.8°C (73°F)

<37.8°C (100°F)

Class IA

<22.8°C (73°F)

≥37.8°C (100°F)

Class IB

≥22.8°C (73°F)

<37.8°C (100°F)

Class IC

≥37.8°C (100°F)

<60°C (140°F)

Class II

≥60°C (140°F)

<93°C (200°F)

Class IIIA

≥93°C (200°F)


Class IIIB


·       Abide by the following quantity limits:

o   Ensure the total amount of Class I, Class II, and Class IIIA liquids in a cabinet is <120 gallons (454 liters)

o   Ensure that of the 120-gallon total, the combined quantity of Class I and Class II liquids is <60 gallons (227 liters).

4.3           Transportation

4.3.1      On-Site Transfer

Transferring chemicals from one area to another, within the continuous boundary of Jefferson Lab, is performed in accordance with the requirements of ES&H Manual Chapter 6660 Appendix T1 Transport of Hazardous Material


4.3.2      Off-Site Shipping

Shipping of chemicals to a location outside the continuous boundary of Jefferson Lab requires special training. Off-Site Shipping Requirements are provided in ES&H Manual Chapter 6660 Appendix T1 Transport of Hazardous Material.


5.0          References


Table 2Rating Summary

Color Code

# Designation












Extremely Toxic - very short exposure interval.

·       Specialized protective equipment required.

·       Could cause death or major residual injury even with prompt medical treatment.

·       A known or suspected human carcinogen, mutagen or teratogen.


Seriously Toxic – Corrosive.

  • Avoid skin contact or inhalation
  • May cause serious temporary or residual injury on short term exposure even with prompt medical treatment.
  • A known or suspected small animal carcinogen, mutagen or teratogen.


Moderately toxic material.  

·       May be harmful if inhaled or absorbed

·       Intense or continued exposure could cause temporary incapacitation or possible residual injury unless prompt medical treatment is given.


Slightly toxic material.

  • May cause irritation but only minor residual injury even without treatment.

·       Recognized innocuous material when used with responsible care


Minimal – No unusual hazard.

No chemical is without some degree of toxicity.




Extremely Flammable – gas or liquid

Flash point below 73 F (22.8 C)


Seriously Flammable – flash point below 100° F

  • Vaporizes readily and can be ignited under almost all ambient conditions.
  • May form explosive mixtures with or burn rapidly in air.
  • May burn rapidly due to self-contained oxygen.
  • May ignite spontaneously in air

·       Flash point at or above 73 F (22.8 C) but less than 100 F (37.8 C).


Moderately Combustible – liquid flash point of 100° to 200° F

  • Must be moderately heated or exposed to relatively high temperatures for ignition to occur.
  • Solids which readily give off flammable vapors.

·       Flash point at or above 100 F (37.8 C) but less than 200 F (93.4 C).


Slightly Combustible if heated

  • Must be preheated for ignition to occur.
  • Will burn in air when exposed at 1500 F (815.5 C) for 5 minutes.

·       Flash point at or above 200 F (93.4 C).


Not combustible

  • Will not exhibit a flash point

·       Will not burn in air when exposed at 1500 F (815.5 C) for 5 minutes.




Extremely Explosive at room temperature

  • Can explode or decompose violently at normal temperature and pressure.
  • Can undergo a violent self-accelerating exothermic reaction with common materials or by itself
  • May be sensitive to mechanical or local thermal shock at normal temperature and pressure.


Seriously Explosive – if shocked, heated under confinement or mixed with water.

  • Can detonate or explode but requires a strong initiating force or confined heating before initiation
  • Readily promotes oxidation with combustible materials and may cause fires
  • Is sensitive to thermal or mechanical shock at elevated temperatures.
  • May react explosively with water without requiring heat or confinement.


Moderately Unstable – may react violently if mixed with water.

  • Normally unstable and readily undergoes violent change but does not detonate.
  • May undergo chemical change with rapid release of energy at normal temperature and pressure.
  • May react violently with water.

·       Forms potentially explosive mixtures with water.


Slightly Reactive – May react if heated or mixed with water but not violently

·       Normally stable material which can become unstable at high temperature and pressure.


Normally stable material which is not reactive with water.




Water Reactive/Use no water


Oxidizing Agent







6.0          Revision Summary


Revision 1.4 – 07/1/2020 – Periodic Review; Updated webstock to stockroom, updated form to show ES&H division under Rev history, Manual header changed to reflect POC as T. Johnson.

Revision 1.3 – 04/04/17 – Updated to include GHS labeling information re: CATS # MOA-2017-03-02-01l

Revision 1.2 – 06/14/16 – Periodic Review; replaced Material Safety Data Sheet (MSDS) with Safety Data Sheet (SDS) 

Periodic Review – 06/28/13 – No substantive changes per J.Williams

Revision 1.1 – 01/25/12 – Updated Section 4.3 Transportation to reflect requirements of Chapter 6660 Hazardous Material Transport

Revision 1.0 – 07/05/10 – Updated to reflect current laboratory operations












ES&H Division

Jennifer Williams





This document is controlled as an on line file.  It may be printed but the print copy is not a controlled document.  It is the user’s responsibility to ensure that the document is the same revision as the current on line file.  This copy was printed on 7/1/2020.