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Standards & References

Certified standards and reference materials for instrument calibration and analytical quality control. Standards traceable to recognized metrology bodies.

164 products

STANDARD TURBIDITY 1 NTU

SKU: ST-0001
Formula: Mélange
Grade: Certified
CAS Number: Mélange
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CHLORINE STANDARD

SKU: SS-9100
Grade: Certified
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SODIUM CHLORIDE (100PPM)

SKU: SS-8100
Formula: NaCl
Grade: Certified
CAS Number: 7647-14-5
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STANDARD SOLUTION "SULFATE"

SKU: SS-4500
Grade: Certified
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ASTMD2419, STOCK SOLUTION

SKU: SS-2419
Formula: Mélange
Grade: Certified
CAS Number: Mélange
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Calcium standard for hardness, 80-100mg/L (CaCO3)

SKU: SD-0810
Grade: Certified
CAS Number: 471-34-1
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CONDUCTIVITY STANDARD (80 mmhos/cm)

SKU: SC-8888
Formula: Mélange
Grade: Certified
CAS Number: Mélange
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PLATINUM/COBALT (COLOR STANDARD)

SKU: SC-5555
Grade: Certified
CAS Number: Mélange
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CONDUCTIVITY STANDARD (100 mmhos/cm)

SKU: SC-5100
Grade: Certified
CAS Number: Mélange
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CONDUCTIVITY STANDARD (50 mmhos/cm)

SKU: SC-5001
Grade: Certified
CAS Number: Mélange
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CONDUCTIVITY STANDARD (5000µmhos/cm)

SKU: SC-5000
Formula: Mélange
Grade: Certified
CAS Number: Mélange
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CONDUCTIVITY STANDARD (4000µmhos/cm)

SKU: SC-4000
Formula: Mélange
Grade: Certified
CAS Number: Mélange
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