What is the recommended storage/handling time for the Temperature parameter before analysis?

• A. Store at 4C for 24 hours
• B. Freeze at -20C
• C. Keep at room temperature for 2 days
• D. Analyze Immediately

Answer: (D)

Temperature readings are time-sensitive and reflect the condition at the moment of sampling. Any delay allows the sample to exchange heat with its surroundings, or undergo other changes, causing the measured value to drift away from the true temperature. Analyzing immediately preserves the actual condition as it was when collected. Storing at 4°C, freezing, or leaving at room temperature for days would alter the reading and produce inaccurate results.