🔍 Key Concepts

• 46 CFR definitions for flammable liquids and how they are grouped by grade • Typical flash point ranges used to classify flammable liquid grades • Whether each listed chemical is commonly handled as a flammable liquid under marine safety rules

💭 Think About

• Which of these substances are normally transported and regulated specifically as flammable liquids, rather than mainly as toxic, corrosive, or compressed gases? • How does the grade classification relate to the liquid’s flash point or volatility, and which of these four is known for that type of behavior? • Can you recall examples from your study materials of chemicals explicitly listed as Grade B flammable liquids and match one here?

✅ Before You Answer

• Check a marine chemical/flammable liquid table (in 46 CFR) for examples of Grade B substances you’ve seen before. • Verify the primary hazard class (flammable liquid vs. other hazard) under shipping regulations for each option. • Confirm that the substance you choose is one you’ve previously seen associated with flammable liquid tanks or cargo on vessels, not primarily with other special containment requirements.