How to negotiate a salary in Norway/Scandinavian countries? So, my application looks like its going very well. I've got a feedback from the Norwegian institute that I am the most suitable candidate for the job among 13 ones. In a few weeks, I will be in the interview. I examine that there will be salary negotiations after the interview, taken into account the hard processing for all the applicants to the job and the committee's decision to choose me as the best candidate.

The salary pay scale is 57-76 according to the Norwegian system. To be honest, anything less than 68 will not be of interest to me. However, I don't want to lose the job because of such decision.
I don't find any information on here or the internet about how can I negotiate a salary in Academic Norwegian organizations.

I would appreciate your help or experience. PS: I have a family, maybe this can explain why I need a higher pay :P

Thank you.
I'm a PhD student, born and raised in Denmark. I have not applied for jobs in Norway, but have done some teaching in Norway and had a few interactions with Norwegian academics. 

The Norwegians will appreciate humbleness, good manners and honesty. In the culture, it is very acceptable to care for your family. 
In all communications in particular, good manners is key. 

My recommended approach: Be humble and grateful for their offer, state all the reasons why you really want to work with them, then, without overdoing this (remain humble) state all the reasons that you are valuable. Then, proceed with honesty: state that you want to be at their workplace, how much you want to get paid, that you have some experience and that you need some funding to support your family.

Wish you luck!