4.content:20.5%min or 21% min
5.loading: 25-27mt/fcl
6.package:20kg/25kg/50kg per bag or as coustomers' require
7.delivery term: within 15 days after confirmed the order
certification of steel grade
inspection items | requirement | inspection results | conclusion or not |
n content % | ≥20.5 | 20.8 | conformed |
moisture % | ≤1.0 | 0.6 | conformed |
free acid % | ≤0.2 | 0.09 | conformed |
s content% | ≥23.6 | 23.9 | conformed |
certification of caprolactam grade:
item unit excellent grade test result
appearance
|
--------------------- | crystalline | crystalline |
total n | % min | 21 | 21.1 |
moisture | % max | 0.2 | 0.15 |
free acid | % max | 0.03 | 0.02 |
iron(fe) | %max | 0.007 | 0.004 |
arsenic(as) | %max | 0.00005 | 0.00002 |
heavy metals | %max | 0.005 | 0.002 |
water-insoluble matters | %max | 0.01 | 0.008 |
purity | ------------------- | 99% | pass |
sulfur | % min | 23.9 | 24 |