Calibration Weights
Accurate and stable reference standards for calibrating weighing equipment, including variously certified/accredited weights and weight sets from different classes. Products may be constructed of aluminum, stainless steel, brass, iron, and other alloys.
Calibration weights (also known as reference weights or test weights) are manufactured to meet high tolerances and accuracy. They are used to spot-check the performance and verify the calibration of analytical balances, precision balances, and general-purpose scales in research laboratories, educational settings, and other working environments. Some calibration weights may also be used as reference weights for the calibration of improvised or non-certified weights.
How Are Calibration Weights Made?
Calibration weights may be take the form of simple discs, cylinders, wires, or leaves. Sold separately or as sets, they may also be supplied with tweezers, gloves, and a protective case. Calibration weights are often supplied as accessories for specific balance brands and models.
Calibration weights are made from polished brass, aluminum, special stainless steels, or other metals for durability, anti-magnetization, and resistance to corrosion or wear that may affect their accuracy.
Available in nominal values from a few milligrams to 10 kg or more, they may be supplied with certificates or statements of accuracy, compliance, and traceability.
How Are Calibration Weights Classified?
Calibration weights are classified based on accuracy by organizations such as ASTM, OIML, and NIST. The appropriate classification depends on the resolution of the balance and the degree of accuracy needed to satisfy a particular weighing application.
Principal Classes of Calibration Weights:
• Class M1: For standard scales
• Class F1: For precision electronic balances
• Class E2: For highly accurate analytical balances
Enterprise Technology Solutions 100 Cotton Premium Weight Line
100 Cotton Premium Weight Linen Resume Paper 32 lb Bond Weight 8.5 x 11 Almond 100/Pack
Grainger Calibration Gas 116L Carbon Monoxide Air
The GASCO Calibration Gas - Air is a calibration gas used to calibrate gas detection instruments. It contains 20.9% oxygen with the balance being nitrogen. The gas comes in a 34 liter cylinder with a CGA-580 outlet connection. The cylinder operating pressure is 1800 psi. This calibration gas meets NIST traceability standards and has a shelf life of 36 months. It can be used to calibrate and bump test gas detectors used for monitoring oxygen levels. This is a high purity gas mixture suitable for calibrating and testing air quality monitoring equipment.
Enterprise Technology Solutions Dixie Foods Knives, Medium-weight Plastic, 1000/CT, Black
Plastic knives with an elegant black color are ideal for office parties, luncheons and breakroom use. Use with cold or hot foods. Utensils are made of medium-weight polystyrene for rigidity and flexibility as well as shatter-resistant and durable. Each knife measures 7". Efficient Dixie dense pack packaging helps conserve valuable storage space.
Sigma Aldrich Fine Chemicals Biosciences AccurisTM E2 Grade Calibra1EA
Premium Class E2 Weight Set is ideal for calibration of analytical balances with a 0.0001g readability. Precision manufactured from high purity 316 stainless steel these weights are corrosion resistant with magnetic susceptibility 0.005. The set includes 6 weights 100mg to 100g for checking repeatability cornerload linearity and span. The weights are supplied in a protective case with tweezers a cleaning cloth and a certificate of verification.
Enterprise Technology Solutions Karat by Lollicup Cutlery,Disposable,Knife,Medium-Weight,100/BX,10/CT,White
Genuine Joe Disposable Cutlery provides convenience for eating while on-the-go, or for dining where washing dishes is not an option. Durable utensils are designed to be sturdy, so they hold up to hefty meals. Cutlery is perfect for casual dining, food trucks, cafeterias and more.
Rice Lake Weighing System Weight, 20kg ASTM Class 6
Calibration Weight, Rice Lake Weighing Systems, 20kg, Grip Handle, ASTM Class 6 Cast Iron, Painted
Cayman Chemical E2 2Chlorostyryl3 5 6 25mg
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