Sodium single element standard solution | C (NA) = 50G / ML | Bolinda | 500ML * 2 | Standard material (RM) - solution type

Turbidity standard solution - 0NTU (total validity period: 12 months) Arsenic single element standard solution | C (AS) = 100G / ML (5% nitric acid matrix) | Bolinda | 20ML * 5 | Standard material (RM) - solution type Germanium single element standard solution (total validity period: 6 months) Multi-element mixed standard solution | CA, CU, MG | 100G/ML | Steel Research Institute Nanogram | 50ML | Standard material (RM) - solution type Silver 100MG/L20ML analysis and calibration standard sample

Turbidity Standards RATIO 0, 2 NTU, traceable to NIST Multi-element mixed standard solution | LI, AL, CR, MN, FE, CO, NI, CU, ZN | 1000G/ML | Steel Research Institute Nanogram | 50ML | Standard material (RM) - solution type Germanium single element standard solution (total validity period: 12 months) Iron in water | 100MG/L | Micro-standard material | 50ML | Standard material (RM) - solution type Turbidity Standard NON RATIO 4 NTU, traceable to NIST