Calibration Weights
Sartorius™ Stainless Steel OIML Class F2 Reference Line Weight
Stainless Steel OIML Class F2 Reference Line Weight without DAkkS Calibration Certificate.
Sartorius™ Stainless Steel F1 Cylindrical Calibration Weight
Ensure accurate calibration and weighing. Fisherbrand™ Stainless Steel F1 Cylindrical Calibration Weight is a highly accurate individual weight with a nominal mass between 1g and 10kg. These cylindrical weights conform to class F1 requirements.
Fisherbrand™ Individual Stainless Steel Cylindrical Calibration Weights, Class F1 with certificate
Calibrate masses of class II and III weighing instruments. Fisherbrand™ Class F1 Individual Stainless Steel Cylindrical Calibration Weights are intended for use in the verification or calibration of class F2 weights and for use with weighing instruments of special accuracy.
Fisherbrand™ Stainless Steel Cylindrical Calibration Weight Set, Class E2
Calibrate weights of lower accuracy classes. Fisherbrand™ Class E2 Individual Stainless Steel Cylindrical Calibration Weights are intended for use in the verification or calibration of class F1 weights and for use with weighing instruments of special accuracy class I.
Fisherbrand™ Stainless Steel Cylindrical Calibration Weight Set, Class F1
Calibrate masses of class II and III weighing instruments. Fisherbrand™ Class F1 Stainless Steel Cylindrical Calibration Weights are intended for use in the verification or calibration of class F2 weights and for use with weighing instruments of special accuracy.
Fisherbrand™ Individual Stainless Steel Cylindrical Calibration Weights, Class M1
Use with weighing instruments of medium accuracy class III. Fisherbrand™ Class M1 Stainless Steel Calibration Weights are ideal for the verification or calibration of class M2 weights.
Fisherbrand™ Individual Stainless Steel Cylindrical Calibration Weights, Class F2 with certificate
Use with weighing instruments of high accuracy class II. Fisherbrand™ Class F2 Stainless Steel Calibration Weights are also intended for use in important commercial transactions, such as those involving precious metals and stones.
Fisherbrand™ Individual Stainless Steel Cylindrical Calibration Weights, Class F2
Use with weighing instruments of high accuracy class II. Fisherbrand™ Class F2 Stainless Steel Calibration Weights are also intended for use in important commercial transactions, such as those involving precious metals and stones.
Fisherbrand™ Individual Stainless Steel Cylindrical Calibration Weights, Class E2
Calibrate weights of lower accuracy classes. Fisherbrand™ Class E2 Individual Stainless Steel Cylindrical Calibration Weights are intended for use in the verification or calibration of class F1 weights and for use with weighing instruments of special accuracy class I.
Fisherbrand™ Individual Stainless Steel Cylindrical Calibration Weights, Class E2 with Certificate
Calibrate weights of lower accuracy classes. Fisherbrand™ Class E2 Individual Stainless Steel Cylindrical Calibration Weights are intended for use in the verification or calibration of class F1 weights and for use with weighing instruments of special accuracy class I.
Fisherbrand™ Individual Stainless Steel Cylindrical Calibration Weights, Class M1 with certificate
Use with weighing instruments of medium accuracy class III. Fisherbrand™ Class M1 Stainless Steel Calibration Weights are ideal for the verification or calibration of class M2 weights.
Fisherbrand™ Individual Stainless Steel Leaf Calibration Weights, Class E2
Calibrate weights of lower accuracy classes. Fisherbrand™ Class E2 Individual Stainless Steel Leaf Calibration Weights are intended for use in the verification or calibration of class F1 weights and for use with weighing instruments of special accuracy class I.
Fisherbrand™ Stainless Steel Cylindrical Calibration Weight Set, Class F2
Use with weighing instruments of high accuracy class II. Fisherbrand™ Class F2 Stainless Steel Calibration Weights are also intended for use in important commercial transactions, such as those involving precious metals and stones.
Fisherbrand™ Stainless Steel Cylindrical Calibration Weight Set, Class F1 with certificate
Calibrate masses of class II and III weighing instruments. Fisherbrand™ Class F1 Stainless Steel Cylindrical Calibration Weights are intended for use in the verification or calibration of class F2 weights and for use with weighing instruments of special accuracy.
Fisherbrand™ Stainless Steel Cylindrical Calibration Weight Set, Class F2 with certificate
Use with weighing instruments of high accuracy class II. Fisherbrand™ Class F2 Stainless Steel Calibration Weights are also intended for use in important commercial transactions, such as those involving precious metals and stones.
Fisherbrand™ Individual Stainless Steel Cylindrical Calibration Weights, Class F1
Calibrate masses of class II and III weighing instruments. Fisherbrand™ Class F1 Stainless Steel Cylindrical Calibration Weights are intended for use in the verification or calibration of class F2 weights and for use with weighing instruments of special accuracy.
Fisherbrand™ Leaf Calibration Weight Set, Class E2
Calibrate weights of lower accuracy classes. Fisherbrand™ Class E2 Individual Stainless Steel Leaf Calibration Weights are intended for use in the verification or calibration of class F1 weights and for use with weighing instruments of special accuracy class I.
Fisherbrand™ Stainless Steel Cylindrical Calibration Weight Set, Class E2 with Certificate
Calibrate weights of lower accuracy classes. Fisherbrand™ Class E2 Individual Stainless Steel Cylindrical Calibration Weights are intended for use in the verification or calibration of class F1 weights and for use with weighing instruments of special accuracy class I.
Fisherbrand™ Stainless Steel Cylindrical Calibration Weight Set, Class M1
Use with weighing instruments of medium accuracy class III. Fisherbrand™ Class M1 Stainless Steel Calibration Weights are ideal for the verification or calibration of class M2 weights.
Fisherbrand™ Stainless Steel Cylindrical Calibration Weight Set, Class M1 with certificate
Use with weighing instruments of medium accuracy class III. Fisherbrand™ Class M1 Stainless Steel Calibration Weights are ideal for the verification or calibration of class M2 weights.
Fisherbrand™ Leaf Calibration Weight Set, Class M1 with certificate
Use with weighing instruments of medium accuracy class III. Fisherbrand™ Class M1 Stainless Steel Calibration Weights are ideal for the verification or calibration of class M2 weights.
Fisherbrand™ Brass (Stainless Steel) Calibration Weight Set, Class M1
Use with weighing instruments of medium accuracy class III. Fisherbrand™ Class M1 Stainless Steel Calibration Weights are ideal for the verification or calibration of class M2 weights.
Fisherbrand™ Individual Stainless Steel Leaf Calibration Weights, Class E2 with certificate
Calibrate weights of lower accuracy classes. Fisherbrand™ Class E2 Individual Stainless Steel Leaf Calibration Weights are intended for use in the verification or calibration of class F1 weights and for use with weighing instruments of special accuracy class I.
Fisherbrand™ Individual Stainless Steel Cylindrical Calibration Weights, Class E2
Calibrate weights of lower accuracy classes. Fisherbrand™ Class E2 Individual Stainless Steel Cylindrical Calibration Weights are intended for use in the verification or calibration of class F1 weights and for use with weighing instruments of special accuracy class I.
Fisherbrand™ Special Steel Certified E2 Wire Calibration Weight
Ensure precise calibration and comparative measurements. Fisherbrand™ Special Steel Certified E2 Wire Calibration Weight is a highly accurate individual weight with a nominal mass of 5mg. The wire weight conforms to class E2 requirements and isISO 17025 certified.
Fisherbrand™ Leaf Calibration Weight Set, Class F1
Calibrate masses of class II and III weighing instruments. Fisherbrand™ Class F1 Leaf Calibration Weights are intended for use in the verification or calibration of class F2 weights and for use with weighing instruments of special accuracy.
Fisherbrand™ Leaf Calibration Weight Set, Class F2 with certificate
Use with weighing instruments of high accuracy class II. Fisherbrand™ Class F2 Stainless Steel Calibration Weights are also intended for use in important commercial transactions, such as those involving precious metals and stones.
Fisherbrand™ Leaf Calibration Weight Set, Class E2 with certificate
Calibrate weights of lower accuracy classes. Fisherbrand™ Class E2 Individual Stainless Steel Leaf Calibration Weights are intended for use in the verification or calibration of class F1 weights and for use with weighing instruments of special accuracy class I.
Fisherbrand™ Leaf Calibration Weight Set, Class F1 with certificate
Calibrate masses of class II and III weighing instruments. Fisherbrand™ Class F1 Leaf Calibration Weights are intended for use in the verification or calibration of class F2 weights and for use with weighing instruments of special accuracy.
Calibration weights (also known as reference weights or test weights) are known, standard weights, manufactured to very high tolerances and accuracy, used for the performance checking and calibration of analytical balances, precision balances and general-purpose scales in the research laboratory, educational settings and other working environments. They may also be used for the calibration of other improvised or unknown weights.
How are calibration weights made?
Calibration weights take the form of simple discs, cylinders, wires or leaves. Calibration weights are typically available as sets, often supplied with tweezers and gloves in a protective case for safe keeping. They may also be sold as individual weights. Calibration weights are often supplied as accessories for compatibility with specific makes and models of balance.
Calibration weights are made of metals such as polished brass, aluminium or special stainless steels for durability, anti-magnetisation, and resistance to corrosion or wear and tear that could affect accuracy. Calibration weights are available in nominal values of a few millligrams up to 10kg or more. They may also be supplied with appropriate certifications or statements of accuracy, compliance and traceability.
How are calibration weights classified?
Calibration weights are classified by organisations such as ASTM, OIML and NIST according to their accuracy. The appropriate classification depends on the resolution of the balance and the degree of accuracy needed to satisfy the particular weighing application. The principal classes are:
- Class M1 calibration weights are used with standard scales
- Class F1 calibration weights are used with precision electronic balances
- Class E2 calibration weights are used with highly accurate analytical balances