Precision balances

A precision balance reads to 1 mg, 0.01 g or 0.1 g and weighs from a few hundred grams up to several kilograms. Use it for preparing buffers and media, weighing raw materials and checking fill quantities. An analytical balance reads to 0.1 mg or finer, in an enclosed weighing chamber, for standards and small samples. Examples: the precision balance, 620 g, 1 mg, and the precision balance, 2200 g, 0.01 g. When 1 mg is not fine enough, look at analytical balances.

Choose a readability clearly finer than the smallest amount you need to weigh accurately. As a rule of thumb, a reading about ten times finer than your required accuracy leaves room for normal variation. For a few grams of reagent, 1 mg works well, as on the precision balance, 220 g, 1 mg. For hundreds of grams, 0.01 g is usually enough. For large containers or bulk material, 0.1 g at high capacity is practical, as on the precision balance, 10,200 g, 0.1 g. Unsure? Ask sales@luminixhealth.com.

You need a verified balance when the weight is the basis for a sale or a legal quantity, for example when you sell by weight, prepare medicines in a pharmacy or issue official results. In the EU these balances fall under the rules for non-automatic weighing instruments and carry a verification mark. For internal research and quality work, a calibrated balance with traceable checks is usually enough. Examples of calibrated models are the precision balances, 6200 g, 0.01 g. These are not offered as verified balances; ask sales@luminixhealth.com if you need one.

Check the balance with a certified test weight close to the load you normally weigh, for example a stainless-steel test weight, OIML class F1, 500 g, with certificate, 1 piece. Level the balance, let it warm up, zero it, place the weight in the centre and compare the reading with the tolerance in your SOP. If the deviation is too large, adjust the balance with its internal or external adjustment function and record the result. Pick the weight class to suit your readability. For external calibration with a certificate, see calibration service.

A precision balance reads more coarsely than an analytical balance, often 1 mg or 10 mg, and it takes a heavier pan load. It is the balance for preparing bulk reagents. Draft, level and a warm-up still move the last digit.

A balance compares a mass with a standard. An analytical balance reads to 0.1 mg or finer and needs a draft shield and a stable bench. A precision balance is coarser and faster. A platform scale takes a heavier load. The reading is only as good as the calibration chain back to the kilogram, which is why test weights and a certificate exist. A moisture analyser is a balance with a heater: it records the loss of mass as water leaves. The unit of mass is kept by the BIPM, compared across Europe by EURAMET, and accredited by BELAC. NIST publishes the same measurement foundations.

This shelf belongs to Balances & scales, inside Lab instruments. Luminix Health distributes this range for laboratory use.

The neighbouring shelves are Calibration & test weights, Balance accessories, calibration & certificates, Bench, platform & industrial scales, Analytical balances and Moisture analysers. The category above this shelf is Balances & scales.

Luminix Health distributes this range from the heart of Europe. We deliver across the EU in two to five days if in stock. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. Send a quote request, contact the team, or read who we are. The full brand index is on shop by brand.

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