Canadian Council of Independent Laboratories (CCIL) Practice Exam 2025 – All-in-One Comprehensive Guide to Exam Success!

Planeness checking for cylinders is an important aspect in ensuring the quality and accuracy of results in laboratory measurements. The requirement to check every 10th cylinder, but no less than 3 in one day, is established to maintain a consistent quality control protocol. This frequency allows for sufficient monitoring without being overly burdensome.

Regularly checking every 10th cylinder helps identify any shifts or trends in measurements that could indicate potential issues, such as wear or damage to the equipment. By implementing a minimum of 3 checks in one day, it ensures that even with lower volumes of work, there is a baseline level of verification. This practice enhances reliability and confidence in results over time.

More sporadic checking, such as every 5th or 20th cylinder, or choosing to check randomly throughout the week may not provide an adequate overview of the ongoing performance of the cylinders. These less frequent checks may lead to undetected errors or deviations, which could subsequently affect the quality of the laboratory’s output. Hence, the approach specified in the correct answer is more systematic and effective for maintaining high standards of practice.