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Urea
GOST 2081-2010 (CN of FEA code 310 210 1000)
Urea is intended for use in the industry as a raw material in the manufacturing of glues, resins and others, in agriculture, including smallholdings and farms as a mineral nitrogen fertilizer, and also in livestock as feed additive. Urea is produced in two grades («А» and «B») depending on the purpose.
Urea of «А» grade used for industry
|
Specifications |
Highest grade |
First- grade |
|
Mass fraction of nitrogen in dry substance,% no less than |
46,3 |
46,2 |
|
Mass fraction of biuret , % no more than |
0,6 |
1,4 |
|
Mass fraction of free ammonia, %, max, for urea: - crystalline - granular |
0,01 0,02 |
0,01 0,03 |
|
Mass fraction of water , %, no more than: - hygroscopic - total |
0,3 0,6 |
0,3 0,6 |
Urea of «B» grade for crop growing, livestock farming and retail trade
|
Specifications |
Highest grade |
First- grade |
Second- grade |
|
Mass fraction of nitrogen in dry substance,% no less than |
46,2 |
46,2 |
46,2 |
|
Mass fraction of biuret , % no more than |
1,4 |
1,4 |
1,4 |
|
Mass fraction of water , %, no more than: - hygroscopic; - total; |
0,3 0,5 |
0,3 0,5 |
0,3 0,6 |
|
Friability, % |
100 |
100 |
100 |
|
Granulometric composition, %: Mass fraction of granules size, mm - from 1 to 4, no less than - from 2 to 4, no less than - less than 1, no more than - sieve residue 6 mm |
94 70 3 not available |
94 50 5 not available |
94 - 5 not available |
Safety Requirements: urea in normal conditions is non-combustible, flameproof and explosion-proof. By degree of impact on human body, urea is referred to moderate hazardous substances of 3rd class.
Packaging: in polypropylene sacks of 25, 40, 50±1 kg and in big-bags.
The product should be stored
in a covered and well ventilated storehouses, protecting the product from atmospheric condensation.
Transportation: in bulk mass and packed, by any kind of transport in accordance with the rules of transportation, effective for given kind of transportation.
Guarantee term of storage: 6 months since the date of manufacturing.
Guarantee term of storage of urea intended for retail trade- 2 years since the date of manufacturing.