Supplier Page from Aladdin Scientific Corporation for Biochemical, chemical oxygen demand (oxygen consumption) composition analysis reference material
(F-, Cl-, NO3-, PO4-, SO42-) Multi-element mixed standard solution (mixed standard) from Aladdin Scientific Corporation
Reference Materials of Flash Point-Opened Cup from Aladdin Scientific Corporation
Standard Mixture of n-Paraffins (consists of C17, C18, C19 and C20) [Standard Material for GC] from Aladdin Scientific Corporation
Turbidity Standards from Aladdin Scientific Corporation