Gamma measurement blue concrete - unit and limit values?

[magni]

I am investigating a house before buying and today I conducted a gamma measurement to determine if there is any blåbetong in the house. I borrowed the meter from the municipality and measured in microR/hr. The measured values ranged between 7-11 microR/hr. Now I would like to know what this is in microS/h to determine if it exceeds the limit value of 0.3 microS/h?

Now you might think that I could ask the municipality, but the person who knew the gamma meter was sick and I can't wait until they are back.

Thanks in advance for the response!

 

[Pucco]

1 Sv = 8.38 R assuming R is Röntgen and not Rem

Then your measurement value becomes 0.8-1.3 µSv/h

 

[magni]

If it is as you write, then it indicates that there is blåbetong in the walls.

I did a little research and found, among other things, the following table at the link below.

Sv sievert μSv/h microsievert per hour (new unit)
μR/h microroentgens per hour (older unit)
nGy/h nanogray per hour
1 μSv/h = 100 μR/h
1 μSv/h = 855 nGy/h

http://georange.se/upload/9915689.pdf

Which I interpreted as the values being between 0.07μSv/h and 0.11μSv/h. Isn't that correct?