Final answer:
The statement that Hazard Statements and Codes are standardized and not subject to variation is false. While Hazard Statements are part of a global standardization effort, the implementation and details can vary between regions due to local regulations.
Step-by-step explanation:
The statement that Hazard Statements and Codes are standardized and not subject to variation is false. Hazard Statements are part of the Globally Harmonized System of Classification and Labelling of Chemicals (GHS), and they are designed to provide clear, standardized information on the hazards of chemical substances and mixtures. Each Hazard Statement is associated with a unique code, which starts with the letter H followed by three digits. Although the aim of the GHS is to standardize these statements internationally, actual implementation can vary between different regions and countries. Thus, a hazard statement might be used consistently worldwide, but the details on a safety data sheet, including precautionary statements and labeling, can have minor variations based on local regulations.