Calibration standard nD 1.3900

Calibration standard for refractometers with certificate – 30 ml

• nD 1.3900 ±0.0002 at 25°C, temperature coefficient -0.000344 /+°C, 35%Brix
• Traceable to an internationally recognized standard according to N.I.S.T.
• Calibration solution with defined measured value and certificate at 25°C.
• Each bottle is equipped with temperature correction information. The setpoints for temperatures deviating from 25°C are easy to calculate individually.
• The standard is very inert and guarantees a long shelf life of 5 years unopened. After opening the 30ml bottle, half of the remaining time is considered the expiration date.
• Consists of aliphatic / alicyclic hydrocarbons that are easy to clean with water or standard laboratory solvents, leaving no residue.
• Substance is very attractive in terms of occupational safety. Classification as: not acutely toxic, not irritant, not serious eye damage, not mutagenic or carcinogenic, not toxic for reproduction. Should not get into the groundwater.