For the report which holds all my experimental data, I've started to add the chapter title (that is, the specimen name in my case) to the header.
If you use header 1, 2,... for your titles, there is a quick and easy way to automatically add the chapter title to the header.
Here's a long and very clear description of how to do it.
To sum it up: all you need to do is go to "Quick Parts", select "Field", and then place the category to "Links and References" and select "Styleref". From there you can select what you need, for example "Heading 1".