How full should sample bottles be filled?

Filling sample bottles three-quarters full is considered ideal for several important reasons. First, this level of filling allows sufficient Headspace, which is crucial for mixing, shaking, or any other type of agitation that may be necessary for a thorough analysis of the sample. This Headspace prevents the contents from spilling or leaking during handling, which is particularly important in laboratory settings where samples need to be transported to different locations for testing.

Additionally, a three-quarters full bottle provides an adequate volume of the sample without compromising its integrity. It ensures that there is enough material for testing while also allowing for some variation in the sample to account for any settling or stratification that might occur.

In contrast, filling a bottle completely full could lead to spillage and contamination, especially when the bottle is moved or shaken. Similarly, a half-full or one-quarter full bottle would not provide enough sample for repeat tests or might not allow for proper analysis in certain circumstances. Therefore, three-quarters full is the most appropriate level for ensuring both the safety and efficacy of sample collection and analysis.