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
Cusabio Technology LLC Fish Estradiol(E2) ELISA kit
This Fish Estradiol(E2) ELISA kit was designed for the quantitative measurement of Fish Estradiol(E2) protein in serum, plasma. It is a Competitive ELISA kit, its detection range is 40 pg/ml-1000 pg/ml and the sensitivity is 40 pg/ml. One kit contains 96 wells.
Essendant PAPERSNGLE WGHT MTWE
100pct cotton hot press paper with a coating on both sides for extra versatility Features an ultra smooth finish on two sides that is optimized for Epson Photographic Dye Epson UltraChrome and Archival Inks Acid- lignin- and chlorine-free it is also pH buffered with calcium carbonate for a true archival sheet Engineered to give you the highest resolution and color saturation possible Sheet/Roll Size- 17x131 ft Paper/Media Thickness (mil)- 5 mil Paper/Media Color(s)- White Color Family- White
Rice Lake Weighing System WEIGHT KIT 200MG ASTM CLASS0
Calibration Weight Kit, Rice Lake Weighing Systems, 200mg, ASTM Class 0, Density 7.95
Genscript Corporation CytoSinct M1 magnet
The CytoSinct Manual Separator system is developed to separate human and animal cells The material to be separated for example cells is first magnetically labeled with superparamagnetic CytoSinct Nanobeads After magnetic labeling cells are passed through a CytoSinct Columns which is placed in the strong permanent magnet of the CytoSinct Manual Separator The ferromagnetic spheres in the column amplify the magnetic field by 10 000-fold thus inducing a high Magnetic field gradient Unlabeled cells pass through while magnetically labeled cell are retained within the column After removal of the column from the magnetic field the retained fraction can be eluted Both fractions labeled and non-labeled can be collected for downstream applications including cell culture and flow cytometry
Rice Lake Weighing System Weight, 1mg ASTM Class 5
Calibration Weight, Rice Lake Weighing Systems, Leaf Style, 1mg, ASTM Class 5, Stainless Steel, Satin finish, Density 7.95
Rice Lake Weighing System Weight, 100g ASTM Class 5
Calibration Weight, Rice Lake Weighing Systems, Cylindrical, 100g, ASTM Class 5, Stainless Steel, Satin finish, Density 7.84
Rice Lake Weighing System Weight, 20lb ASTM Class 6
Calibration Weight, Rice Lake Weighing Systems, 20lb, Grip Handle, ASTM Class 6, Cast Iron, Painted
Uline Cast Iron Weight With Nist Traceable Certificate - Class 6, 10 Kg
Cast Iron Weight With Nist Traceable Certificate-Class 6 10 Kg
Bio X Cell InVivoMAb anti-mouse/human CD11b (clone M1/70), 50 mg
InVivoMAb anti-mouse/human CD11b (clone M1/70) is a rat IgG2b monoclonal antibody formulated for in vivo CD11b neutralization, cell purification, and flow cytometry. Supplied in PBS (pH 7.0) with low endotoxin and no stabilizers or preservatives, the product is available in multiple sizes including a 50 mg vial.
- Clone: M1/70.
- Target antigen: CD11b (integrin alpha M).
- Host and isotype: Rat IgG2b, kappa.
- Species reactivity: Mouse and human.
- Formulation: PBS, pH 7.0.
- Endotoxin: ≤1 EU/mg.
- Preservative: none.
- Applications: in vivo neutralization, cell purification, flow cytometry.
- Available sizes: 1 mg, 5 mg, 25 mg, 50 mg, 100 mg.
