Name	Description
ADF (Acid detergent fiber)	Acid detergent fibre is an estimates of the content in cellulose, lignin, cutine and insoluble minerals in the cell wall and it is determined as the residue remaining after the digestion of the sample with an acid detergent solution.
ADL (Acid detergent lignin)	Fiber that are insoluble either in neutral detergents or in acid detergent are measured, and the residue after treatment of the ADF fraction with 12 mol/L sulfuric acid is considered to be acid detergent lignin.
Bulk density	The mass or weight per unit volume.
Electrical Conductivity	Reflects the level of salinity in a compost product, which suggests the possibility of phytotoxic or phyto-inhibitory effects.
NDF (Neutral detergent fiber)	NDF measures structural components in plant cell (i.e lignin, hemicellulose and cellulose), but not pectin,.
Particle Size	A particle's size is measured by measuring its diameter, usually by sedimentation or sieving.
pH	Measure of acidity or alkalinity.
Porosity	The fraction of the total soil volume that is taken up by the pore space.
Settlement	Physical compressibilities of composting mixtures.
Soluble Salts	The amount of soluble ions in a solution of compost and water.