Bottle sampling to cover the time. And placed face up. The keel was laid on the floor. Due to the contamination. And water sample bottles must be closed immediately.
Sample storage bottles must close the lid and place face up on the floor, placed upside down, because due to contamination, and to collect water samples and then to hurry off the bottle cap immediately.
bottle samples must be closed at all times and put the lid on and place face down on the floor facing up. because it will be contaminated water storage. And when you need to get off the lid, and then sample bottle immediately.