Text may be omitted from the OXYGEN placard only if the specific ID number is displayed on the placard [§172.519(b)(3)]. For a placard corresponding to the primary or subsidiary hazard class of a material, the hazard class or division number must be displayed in the lower corner of the placard [§172.519(b)(4)].
Where is the hazard class found on the placard?
The hazard class number in the bottom corner of the placard must measure at least 41 mm. They are legible – text used on a hazard placard must be in English unless otherwise required by a competent authority.
Why is the identification number posted on placards?
Because the identification number may only be displayed if it represents all the hazardous materials in that hazard class loaded on the vehicle. The solution is to display each applicable identification number in one of the following manners: On an orange panel near the placard.
Where must the identification number of a hazardous material appear?
49 CFR 172.332 authorizes the identification number to be displayed on orange panels, within a required placard, or in a white, square-on-point configuration. These identification number requirements are in addition to the applicable placarding requirements for the shipment.
Which area on the label indicates the hazard class number?
The appropriate hazard class or division number must be displayed in the lower corner of a primary and subsidiary hazard label [§172.402(b)]. For classes 1,2,3,4,5,6, and 8, text indicating a hazard (e.g., “CORROSIVE”) is NOT required on a primary or subsidiary label.
What is a DOT hazard Class?
The DOT separates hazardous materials into nine different categories or “hazard classes.” They are defined by specific hazardous properties and have distinct regulatory requirements for packaging, markings, and labels.
How many dot placard hazard classes are there?
A visor card guide for state and local law enforcement officials illustrating vehicle placarding and signage for the following nine classes of hazardous materials: 1) Explosives, 2) Gases, 3) Flammable Liquid and Combustible Liquid, 4) Flammable Solid, Spontanaeously Combustible and Dangerous When Wet 5) Oxidizer and
What is hazard identification number?
Identification numbers are shown in such a way, that the upper number is indicating the danger and the lower number identifies the substances with the UN-number given in the UN Recommendations on the Transport of Dangerous Goods.
When an identification number marking is required it may be displayed on?
When required by § 172.301, § 172.302, § 172.313, § 172.326, § 172.328, § 172.330, or § 172.331, identification number markings must be displayed on orange panels or placards as specified in this section, or on white square-on-point configurations as prescribed in § 172.336(b).
When must you display a UN number on placards?
If in bulk, you always need a placard. If non-bulk, then it depends on if the hazard class is in Table 1 or 2, and the amount that is being shipped. Also, in most cases, 4 placards are required, one on each side and one on each end. When shipping in bulk, a UN number is required on the placard.
What is a material identification number?
They are coded by color and contain symbols and numbers that designate the hazard class or division of the hazardous material that is being shipped. or bulk and certain non-bulk shipments, a four digit hazardous material identification number may be on the placard or on an accompanying orange panel or a white square
Where should the word hot appear if the identification number is placed on the placard?
The identification number may be displayed on a placard, or an orange panel, or a white square-on-point. If the white square-on-point is used the word “HOT” may be included in the upper corner if the HazMat is also an Elevated Temperature Material.
What should UN identification numbers be displayed on?
What Are UN Numbers? These numbers are assigned by the United Nations (UN) Committee of Experts on the Transport of Dangerous Goods, and must be listed on the Material Safety Data Sheet (MSDS) of each shipment.
What appears on a DOT label?
DOT labels must have the hazard class number, or the division number, printed in a font that is at least 6.3 mm (0.25 inches) and not greater than 12.7 mm (0.5 inches) in height. If the label has a green, red or blue background, the text, numbers and symbol should be printed in white.
What DOT hazard Class uses orange on the placard?
White and yellow placards indicate the material is radioactive; Orange placards indicate the material is explosive; White placards with black stripes indicate miscellaneous hazardous materials.
What are the 9 DOT hazard classes?
The nine hazard classes are as follows:
- Class 1: Explosives.
- Class 2: Gases.
- Class 3: Flammable and Combustible Liquids.
- Class 4: Flammable Solids.
- Class 5: Oxidizing Substances, Organic Peroxides.
- Class 6: Toxic Substances and Infectious Substances.
- Class 7: Radioactive Materials.
- Class 8: Corrosives.