IEC 60601-1 Definition of Patient Applied Parts. This article reviews the IEC 60601-1 definition of patient applied parts for medical electrical equipment. It includes examples, as well.
Root causes are the basic reasons behind the problem or issue you are seeing in the community. Trying to figure out why the problem has developed is an essential part of the problem solving process in order to guarantee the right responses and also to help citizens own the problems.
Over-watering can cause brown tips also. That is why I like self watering pots. The root system is just not able to use all the water you provide. The roots may be swimming in water and rot off. Less roots means less leaves, and the plant will usually begin by losing the oldest leaves first.