Certified reference material for refractometers

Calibration of refractometers at 589 nm

  • Customized reference material available
  • Verification of the refractive index for refractometers
  • Factory certified reference materials
  • Valid for large temperature and wavelength ranges
  • Refractive index samples with high precision

Learn more about this accessory

Refractive index standards by Schmidt + Haensch with high precision over the whole temperature and wavelength range. The reference liquids are traceable to PTB standards and allow for high-quality verification, calibrating or testing of your refractometer. You can find more information at “Specifications”, and you are welcome to contact us to request more reference materials.

ID-N° in specifications below 

Specifications

Name Refractive index Temperature range Certificate Tolerance of RI ID-N°
CRM-R 29 B 20 °C ≈ 1.289 20 °C and 25 °C PTB certificate at 20 °C dnD=0.00001
other temperature: dn=0.00005
15761
CRM-R 29 P 20 °C ≈ 1.289 5 °C to 95 °C PTB certificate at 20 °C dnD=0.00001
other temperature: dn=0.00005
15762
CRM-R 33 B 20 °C ≈ 1.333 20 °C and 25 °C PTB certificate at 20 °C dnD=0.00001
other temperature: dn=0.00005
15714
CRM-R 33 P 20 °C ≈ 1.333 5 °C to 95°C PTB certificate at 20 °C dnD=0.00001
other temperature: dn=0.00005
13635
CRM-R 37 B 20 °C ≈ 1.377 20 °C and 25 °C PTB certificate at 20 °C dnD=0.00001
other temperature: dn=0.00005
15715
CRM-R 37 P 20°C ≈ 1.377 5 °C to 95°C PTB certificate at 20 °C dnD=0.00001
other temperature: dn=0.00005
14659
CRM-40 B 20°C ≈ 1.404 20°C and 25°C PTB certificate at 20 °C dnD=0.00001
other temperature: dn=0.00005
06491
CRM-40 P 20°C ≈ 1.404 5 to 95°C PTB certificate at 20 °C dnD=0.00001
other temperature: dn=0.00005
14658
CRM-46 B 20°C ≈ 1.446 20°C and 25°C PTB certificate at 20 °C dnD=0.00001
other temperature: dn=0.00005
15717
CRM-46 P 20°C ≈ 1.446 5 to 95°C PTB certificate at 20 °C dnD=0.00001
other temperature: dn=0.00005
14521
CRM-47 B 20°C ≈ 1.474 20°C and 25°C PTB certificate at 20 °C dnD=0.00001
other temperature: dn=0.00005
01892
CRM-47 P 20°C ≈ 1.474 5 to 95°C PTB certificate at 20 °C dnD=0.00001
other temperature: dn=0.00005
14522
CRM-50 B 20°C ≈ 1.506 20°C and 25°C PTB certificate at 20 °C dnD=0.00001
other temperature: dn=0.00005
15718
CRM-50 P 20°C ≈ 1.506 5 to 95°C PTB certificate at 20 °C dnD=0.00001
other temperature: dn=0.00005
13756
CRM-65 B 20°C ≈ 1.658 20°C and 25°C PTB certificate at 20 °C dnD=0.00001
other temperature: dn=0.00005
07206
CRM-65 P 20°C ≈ 1.658 5 to 95°C PTB certificate at 20 °C dnD=0.00001
other temperature: dn=0.00005
13760
CRM-R Custom customized 10 ml reference material for RI in the range 1.36 bis 1.70 RI, calibrated to dn=0.00005 accuracy; with factory certificate 01891

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