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www.mcmaster.com/hazardous-material-pictograms

A reference chart explains the NFPA (National Fire Protection Association) color and number designations for hazards. Provide the appropriate code number using the NFPA diamond. Write on these labels with a permanent marker or use adhesive-back characters (sold separately).

pe.usps.com/text/pub52/pub52c2_009.htm

223 Hazardous Materials Warning Labels and Markings Most mailable hazardous materials fall in the ORM-D (other regulated materials), consumer commodity, or mailable limited quantity categories. ORM-D materials (surface only) may include an ORM-D marking or a Department of Transportation (DOT) square-on-point marking.

www.acs.org/content/acs/en/chemical-safety/basics/nfpa-hazard-identification.html

The National Fire Protection Association (NFPA) developed a hazard identification system for emergency responders that is still in use today. In the past some chemical manufacturers used NFPA diamonds on their products, but now labels are required to use GHS labeling.

nuncbottle.thermoscientific.com/PDF/Chemical Resistance.pdf

Chemical Resistance Classification 30 days of constant exposure causes no damage. Plastic may even tolerate for years. Little or no damage after 30 days of constant exposure to the reagent. Some effect after 7 days of constant exposure to the reagent. Depending on the plastic, the effect may be crazing, cracking, loss of strength or discoloration.

www.seton.com/signs/osha-safety-signs/chemical-hazmat-signs.html

OSHA-compliant chemical safety signs that meet GHS hazard communication standards . Raise awareness of hazardous chemicals in the workplace with an OSHA-compliant hazmat sign. Follow the OSHA-mandated requirement to warn workers and visitors of possible exposure to hazardous materials with a highly visible hazardous material sign.

www.labelmaster.com/un-markings

Buy the UN Markings Poster! Important information to help your shipping station emloyees. The UN Packaging Guide Poster provides quick reference to UN Packaging requirements for DOT hazmat training. This guide will take the guess work out of shipping and provide DOT hazardous materials training for you and your employees.

www.skippertips.com/public/831.cfm

Study your navigational chart with care and look for the "Co" abbreviation close to any rock or islet symbol. 5. Obstructions. Easy to miss on a nautical or electronic chart display, obstructions can cause damage to propellers, shafts, and keels. Many charts use only an abbreviation "Obstn" to warn mariners. Dots around a circle mean an unknown ...

tide.com/en-us/how-to-wash-clothes/how-to-do-laundry/how-to-read-laundry-symbols

Read on for our quick guide to what the laundry symbols mean, or download and print your own laundry symbols chart to refer to when you see a washing instruction symbol you don’t recognize . Washing Symbols. Getting the temperature and wash cycle right is important for seeing great laundry results, and can even prevent damage to your clothes.

owlcation.com/stem/Laboratory-Signs-and-Symbols-and-Their-Meanings

Chemical Symbols. Recognising hazard laboratory signs in a laboratory is only one part, but recognising hazard signs on chemicals and other substances is another part. Many chemicals in a laboratory are harmful. They could irritate your skin, be dangerous to the environment, corrosive or toxic. That is why hazard symbols were invented, to alert ...

www.lucidchart.com/pages/p-id-symbols-legend

Like other specialized diagrams, P&ID's are comprised of standard shapes and symbols. There's a huge variety of symbols, depending on industry and manufacturer, so we've created this guide to feature the most popular P&ID symbols supported within our P&ID software and is standardized for best practice across the industry.