Answer each of the following questions with a short response. Good luck!

1. Describe the proper way to handle Certified Calibration Weights. Be specific.

2. How often should you standardize the pH meter?

3. What is the acceptable pH meter range during and after standardization?

4. Describe the general procedure for standardizing the pH meter.

Extra Credit: General Chemistry

Given the following information, calculate the % w/w of ACTIVE in PRODUCT X value:

Equivalence Factor: 12.4 mg of ACTIVE / PRODUCT X / ml of 0.05 N Sodium Thiosulfate VS

Concentration of VS = 0.0497 N

Trial 1	Trial 2	Blank
23.2 ml	23.6 ml	1.4 ml
0.0 ml	0.0 ml	0.0 ml

SAMPLE WEIGHT of PRODUCT X, Trial 1 = 500.7 mg

SAMPLE WEIGHT of PRODUCT X, Trial 2 = 511.1 mg

How did you do? After you have taken the Quiz, request the answers via e-mail from accureg@regulatory.com. If you include your address, we'll send you a pocket book of the GMPs for Medical Devices or for finished Pharmaceuticals!

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