• A complimentary publication of The Joint Commission Issue 53, August 20, 2014 Managing risk during transition to new ISO tubing connector standards Tubing misconnections continue to cause severe patient injury and death, since tubes with different functions can easily be connected using luer connectors, or connections can be “rigged” (constructed) using adapters, tubing or catheters. This is why new ISO (International Organization for Standardization) tubing connector standards are being developed for manufacturers.