microbial inoculants in agriculture available in chinese 18 pages this standard prescribes the definition classification technical requirements testing method inspection rules marking packing transportation and storage of microbial inoculants for agricultural use. main technical requirements table 1 technical requirements for microbial inoculants for agricultural use item type liquid powder granule quantity of target living micro-organism cfu a 108 g ml 2.0 2.0 1.0 quantity of mold cfu g ml 3.0106 3.0106 3.0106 percentage of contaminative microorganism 10.0 20.0 30.0 moisture content - 35.0 20.0 particle size - 80 80 ph 5.08.0 5.58.5 5.58.5 shelf lifeb month 3 6 a. for the inoculants with mixed microbial cultures the quantity of each microorganism is no less than 106 g ml and for the inoculants coming from single culture of silicate bacteria bacillus mucilaginosus the quantity of the microorganism is no less than 1.2108 g ml . b. this item is tested only when the supervising department or the both sides of arbitration think it is necessary. table2 technical requirements for inoculants of organic material-decomposer item type liquid powder granule quantity of target living microorganism cfu 108 g ml 1.0 0.50 0.50 activity of cellulase a u g ml 30.0 30.0 30.0 activity of proteinaseb u g ml 15.0 15.0 15.0 moisture content - 35.0 20.0 particle size - 70 70 ph 5.08.5 5.58.5 5.58.5 shelf lifec month 3 6 a. it uses crops such as stalks as decomposed object to test activity of cellulase. b. it uses animal and poultry excrement as decomposed object to test activity of proteinase. c this item is tested only when the supervising department or the both sides of arbitration think it is necessary. table 3 sanitary requirements for microbial inoculants for agricultural use item requirement quantity of fecal coliforms g ml 100 mortality of ascarid egg 95 content of arsenic as mg kg 75 content of cadmium cd mg kg 10 content of lead pb mg kg 100 content of chrome cr mg kg 150 content of mercury hg mg kg 5 some provisions in this national standard are mandatory such as article 5.1 5.3 and the provisions concerning marking packing transportation and storage in chapter 8 and the rest provisions are voluntary this national standard is applicable to microbial fertilizers produced and sold within china