Necessary in environments that regularly use weighing devices, calibration weights guarantee that measuring standards are met. Working to correct slight mechanic changes caused by transporting or excessive instrument handling, these tools guarantee that results remain accurate. The recessed grip or hanger styles are constructed of corrosive resistant metals that withstand cleaning solvents used in uncompromised performance preparations. Calibration weights are available in various masses and tolerances to maintain any analytical balance or laboratory scale resolution and sensitivity.
VWR® Calibration Weights
VWR® Calibration Weights are crafted from high grade stainless steel and feature a plastic storage case.
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Individual Precision Analytical Weights, Class 1
These Sartorius calibration weights are sold individually with a choice of No Certificate, Traceabililty Certificate, or with a Certificate of Calibration. Your choice of certificates determine the price of your calibration weight.
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Individual Precision Analytical Weights, Class 4
These Sartorius calibration weights are sold individually with a choice of No Certificate, Traceabililty Certificate, or with a Certificate of Calibration. Your choice of certificates determine the price of your calibration weight.
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Electronic Balance Cylindrical Weights, Class 1
ASTM Class 1 weights can be used as a reference standard in calibrating other weights and is appropriate for calibrating high-precision analytical balances with a readability.
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Individual Precision Analytical Weights, Class 2
These Sartorius calibration weights are sold individually with a choice of No Certificate, Traceabililty Certificate, or with a Certificate of Calibration. Your choice of certificates determine the price of your calibration weight.
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Calibration Weights, OIML, Class E2, Proof Line, Sartorius
Sartorius Proof Line weights are high quality working standards for everyday use. These weights are made of high quality material with polished or precision lathed surfaces.
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Essential Weights™ Calibration Weight Sets, ASTM Class 0 and 1
Essential Weights are customized sets of three or four stainless steel test weights in a small, durable carrying case, specifically tailored to your precision weighing equipment.
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CarePac® Test Weight Sets, METTLER TOLEDO®
These sets enable routine testing of balances by using two weights at maximum and minimum loads
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Stainless Steel Calibration Weights, ASTM, Class 1, Ohaus®
Manufactured to international standards, individual calibration weights are available for a variety of precision applications
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ASTM Class 4 Calibration Weight Sets
ASTM calibration weight sets, adjusted to meet or exceed ASTM Class 1-4 tolerances, two-piece construction.
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ASTM Class 4 Precision Weight Sets
ASTM weights are designed to resist dust and moisture intrusion, offering long-term stability.
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ASTM Class 1 Weight Sets, METTLER TOLEDO®
These ASTM weight sets with adjusting cavity are made of vaccum-melted stainless steel, with an electropolished finish.
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OIML Class F1 Precision Weights, Mettler Toledo
Basic Line weights are protected in robust and easy to clean plastic boxes.
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OIML Class 4 Individual Precision Weights, ASTM, Mettler Toledo
ASTM weights are designed to resist dust and moisture intrusion, offering long-term stability.
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OIML Class 2 Individual Precision Weights, ASTM, Mettler Toledo
ASTM weights are designed to resist dust and moisture intrusion, offering long-term stability.
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OIML Class 1 Individual Precision Weights, ASTM, Mettler Toledo
ASTM weights are designed to resist dust and moisture intrusion, offering long-term stability.
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Alloy 8 Individual Precision Analytical Weights, Ultra Class and ANSI/ASTM Classes 1 and 4, Troemner
Individual weights available in Troemner UltraClass (equals or exceeds OIML Class E2 tolerances), and ANSI/ASTM Classes 1 and 4.
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Individual Slotted Gram Weights
Individual Slotted Gram Weights are ideal for general-purpose lab applications.
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OIML Individual Calibration Weights and Calibration Weight Sets, Troemner
Alloy 8, high grade stainless steel calibration weights and reference standards. NIST Traceable calibration certificates in UltraClass Series and OIML E1, E2, F1, F2.
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Economical Class 7 Hooked Weights
For rough weighing operations in physical and chemical laboratories, such as force measuring apparatus.
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Electronic Balance Calibration Weights, ANSI/ASTM Class 3 Weight, Troemner
Precision-crafted of stainless steel, with a highly polished finish
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Density Sets
Students Learn That the Density of a Substance is Constant, Even as Its Mass and Volume Change.
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Electronic Balance Calibration Weights, ANSI/ASTM Class 2 Weight, Troemner
Precision-crafted of stainless steel, with a highly polished finish
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Individual Stainless Steel Hooked Weights
Choose from Weights Ranging from 10g to 1000g
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Economical Class 7 Cylindrical Weights
For rough weighing operations in physical and chemical laboratories, such as force measuring apparatus.
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Calibration Weights, Cast Iron, ASTM Class 6
Individual scale calibration weights adjusted to meet or exceed ASTM Class 5 to 7 tolerances. Troemner cast iron test weights offer uncertainties of less than ¹/₄ of the tolerance and are available in cube, cylindrical, flat and grip handle designs in sizes from 1 mg to 30 kg or 1 to 50 lbs.
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Electronic Balance Calibration Weights, Ultra Class and ANSI/ASTM Classes 1 and 4, Troemner
Precision-crafted of stainless steel, with a highly polished finish.