Tested in ISO 9000 Certified Lab. Traceable to NIST SRM. Certified to 0.5% of value. All values at 25°C.

ICP Standard, High Purty Elements manufactured in an ISO 9000 certified laboratory. Guaranteed to 0.3% tolerance.

For meter calibration. Certified. Standardized to NIST-SRM to 0.01 Unit.

Tested in ISO 9000 Certified Lab. Traceable to NIST SRM. Certified to 0.5% of value. All values at 25°C.

For meter calibration.

pH 4.6 (pink) to pH 5.2 (blue-green). APHA for Alkalinity.

ICP Standard, High Purty Elements manufactured in an ISO 9000 certified laboratory. Guaranteed to 0.3% tolerance.

Tested in ISO 9000 Certified Lab. Traceable to NIST SRM. Certified to 0.5% of value. All values at 25°C.

Formula: Na₂MoO₄-2H₂O Formula Weight: 241.95 g

Tested in ISO 9000 Certified Lab. Traceable to NIST SRM. Certified to 0.5% of value. All values at 25°C.

For meter calibration. Certified. Standardized to NIST-SRM to 0.01 Unit.

Mercury free

APHA, EPA for Sulfide, 0.05ml=1ml/L Sulfide