PD Product Check List was developed based on the 28 routine steps of standard orientation manual for new Thai PD patients. Of these, step 2 (weighting the PD solution bag), step 3 (checking expiration date, volume, glucose concentration, clarity, and color, step 27 (weighting the PD solution bag), and step 28 (recording time, volume, and any abnormality encountered) are relevant to product defect report.