Whmis Hazard Categories Within The Same Health Hazard Class May Use Different Pictograms To Indicate The Level Of Severity Of The Hazard. (2023)

FAQs

Whmis Hazard Categories Within The Same Health Hazard Class May Use Different Pictograms To Indicate The Level Of Severity Of The Hazard.? ›

Also, some materials or products may belong to more than one hazard category. In this case, more than one pictogram may be shown on the label of the product. Lastly, there are a few hazard categories that do not require a pictogram at all.

Also, some materials or products may belong to more than one hazard category. In this case, more than one pictogram may be shown on the label of the product. Lastly, there are a few hazard categories that do not require a pictogram at all.

The health hazard pictogram is used for the following classes and categories: Respiratory or skin sensitization – Respiratory sensitizer (Category 1, 1A and 1B) Germ cell mutagenicity (Category 1, 1A, 1B and 2) Carcinogenicity (Category 1, 1A, 1B, and 2)

The hazard categories are assigned a number (e.g., 1, 2, etc.) Categories may also be called "types". Some hazard classes have only one category (e.g., corrosive to metals), others may have two categories (e.g., carcinogenicity (cancer)) or three categories (e.g., oxidizing liquids).

The hazard class and category are guides to the: Type of hazard, degree of hazard and precautions to follow. Some products can belong to more than one hazard class! Some types of products are excluded from labeling and SDS requirements because they're regulated by other laws.

A pictogram will represent either a physical hazard, health hazard or environmental hazard. Keep in mind that there is not a unique pictogram for each individual hazard within each class. In other words, one pictogram may be used to represent several hazards within a class.

While the GHS uses a total of nine pictograms, OSHA will only enforce the use of eight. The environmental pictogram is not mandatory but may be used to provide additional information.

The corrosive GHS pictogram represents substances that eat away at a material when they make contact. This symbol covers both physical and health hazard classes – that's why it depicts both a hand and a surface. Chemical classes include: Skin corrosion or burns.

There are nine pictograms under the GHS to convey the health, physical and environmental hazards. The final Hazard Communication Standard (HCS) requires eight of these pictograms, the exception being the environmental pictogram, as environmental hazards are not within OSHA's jurisdiction.

What is the correct order of hazard classification levels in WHMIS? ›

Category 1 is always the greatest level of hazard (that is, it is the most hazardous within that class). If Category 1 is further divided, Category 1A within the same hazard class is a greater hazard than category 1B. Category 2 within the same hazard class is more hazardous than category 3, and so on.

Hazardous products are divided into two hazard groups: physical hazards and health hazards. The two hazard groups are further divided into hazard classes.

Hazardous products are divided into two hazard groups: physical hazards and health hazards. The two hazard groups are further divided into hazard classes.

That's why WHMIS has a series of symbols called Pictograms designed to communicate any potential dangers certain products might have. There are 10 Pictograms as of WHMIS 2015. WHMIS only had eight pictograms upon its debut in 1988.

The CLP Regulation introduce several different classification hazards under the groups; physical, health and environmental. These hazards can range from acute toxicity to environmental hazards to skin sensitisation.

Hazards are identified as part of the hazard analysis and then evaluated on their likelihood to occur and the severity at which it could cause illness or injury. All hazards are assessed and categorized into three groups: biological, chemical and physical hazards.

One or more pictograms might appear on the labelling of a single chemical.

NOTE: No pictogram is assigned to some hazard classes e.g., Combustible Dusts and Simple Asphyxiants, and some less severe hazard categories.

Once a hazard is classified, you must use the appropriate signal word, hazard statements, precautionary statements, and pictograms on the label and Safety Data Sheet (SDS). Pictograms are a standardized set of simple-to-understand symbols.

There are various pictograms that can be included on the label, and depending on the chemical, a single label can contain more than one if the chemical has multiple hazards.