I've never heard of that floss.Just go to the dmc website and see what you can find there.They have lots of conversions,and they also have a website for the UK.
Kathi

Here's another suggestion!!! Go to www.123stitch.com
You'll have to get a name and password to post,but that's easy.Then ask about the floss over there.Those ladies are a wealth of information and they are from all over the world,and will probably have an answer for you within the hour.HTH
Kathi

Thank you Kathi!!
I did check out the websites you had suggestet and found out that the elusive Blomster yarn is also known as Danish Flower Thread. I have found now a conversion chart.
Thanks again for your help.
Florinde

Check out this site, they seem to have conversion charts for almost every brand out there.

Here is a link that might be useful: My Hobby Craft