… at 51°C. Btw: This is quite a bit higher than what the literature states. What about the radon 222 content? Post author By bert Post date March 1, 2023 No Comments on Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Δ This site uses Akismet to reduce spam. Learn how your comment data is processed.