In the next line: "Introduction" becomes introduction, which is correct. "popular" could be ubiquitous, "household" as domestic, and so on for each word.
Transport Information: UN Number. Since proper noun, leave as is. So Transport Information: Tesco Thick Bleach with Lemon is classified as: UN Identifier: tesco thick bleach lemon safety data sheet
I need to verify that all the replacements are accurate and contextually appropriate. For example, in "Wear protective clothing," "protective" could be safety while maintaining the meaning. Also, technical phrases like "self-contained breathing apparatus" should remain as they are proper nouns. In the next line: "Introduction" becomes introduction, which