In article ,
Phisherman wrote:

Is there a test to get a percentage of organic matter in a soil
sample? Anyone know how is this typically done in a lab? I was
wondering if the sample is weighed, burned off, and re-weighed to
calculate a percentage? I guess compost made from leaves, twigs, peat
moss, grass would be close to 100% "organic matter." Sand, stones,
clay, perlite, vermiculite, water, nitrogen salts would be "inorganic
matter?" What I am hearing is that good soil must have greater than
5% organic matter.

May only provide % solids any thing more would be $$$$$$.

Bill thinking why bother just err on the side of too much if that is
possible.

http://extension.oregonstate.edu/catalog/pdf/ec/ec1478.pdf

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Garden in shade zone 5 S Jersey USA

Not all who wander are lost.
- J.R.R. Tolkien (1892-1973)