The draft of BS 8616 Specification for performance parameters and test methods for green roof substrates is currently up for public comment and is available at the following address https://standardsdevelopment.bsigroup.com/projects/2018-00765 . Please note that GRO wish to thank Tom Young of STRI for his work on this.
Deadline for comments is 28th April. Please feedback to SPRA if you are submitting comments.
Source: Mark Harris, GRO