AG Fluids are an organic solution calibrated in °Brix & RI and have a long shelf life. Having a low °Brix/RI value, AG fluids provide a low cost alternative to Sucrose Solutions, especially as they can be supplied in multi-packs of 5 or 20 5ml bottles, reducing the per bottle shipping cost. Multi-packs are supplied with a Certificate of Calibration, SDS and pipettes. They have no special storage or transit requirements and are therefore easy to ship and store.
AG Fluids are manufactured on a %weight/weight basis in our UKAS laboratory using only the highest quality chemicals and Analar® distilled water. Manufactured in large batches, the resultant samples are checked using a controlled refractometer that has been carefully calibrated with NIST primary standards, providing traceability.
However, AG Fluids have a refractive index/temperature co-efficient that is not quite the same as sucrose and so care must be taken when verifying refractometers that rely purely on sucrose based compensation (ATC) such as hand held or low cost laboratory refractometers. AG Fluids may be used on such instruments manufactured by Bellingham + Stanley as, for example, RFM700 Series instruments may be switched to AG Fluid temperature compensation, whilst any OPTi digital hand held refractometers may be switched to the unique AG Test Mode. Alternatively, our RI/°C Temperature Calculators may be used for instruments that have no temperature control such as Abbe refractometers or other manufacturer’s instruments working without compensation or temperature control.
|Single 5ml Bottle||Multi-pack of 5 x 5ml Bottle||Multi-pack of 20 x 5ml Bottles||Refractive Index*||°Brix**|
Maximum Uncertainty: ±0.000037
RI ±0.019 ºBrix
The reported expanded uncertainty of measurement is stated as the standard uncertainty of measurement in units of °Brix (equivalent to weight % sucrose in water) multiplied by the coverage factor k=2, which for a normal distribution corresponds to a coverage probability of approximately 95%. The standard uncertainty of measurement has been determined in accordance with publication EA-4/02.