Calibration Weights

Calibration weights provide a reliable reference for verifying scale and balance performance. Built from durable, corrosion-resistant materials, they are engineered to maintain mass stability and measurement integrity over time. Used across laboratory, pharmaceutical, and industrial applications, calibration weights play a key role in maintaining traceable, defensible measurement results.

Common Temperature Mapping Mistakes (and How to Avoid Them)

Top Picks of 2025

2025 Year in Review

Alpha Controls Launches New Website

Alpha Controls Expands Industrial & Bioprocess Instrument Portfolio

Alpha Controls Continues with the Rollout of a New Brand Identity

Calibration Weights

All Calibration Weights Products

Calibration Weight Set 20 g Range, ASTM Class 4

Calibration Weight Set 20 g Range, ASTM Class 3

Calibration Weight Set 20 g Range, ASTM Class 2

Calibration Weight Set 20 g Range ASTM Class 1

Calibration Weight Single 50 lb - 10 lb, ASTM Class 4

Calibration Weight Single 50 lb - 10 lb, ASTM Class 3

Calibration Weight Single 50 lb - 10 lb, ASTM Class 2

Calibration Weight Single 50 lb - 10 lb, ASTM Class1

Calibration Weight Set 2 kg Range, OIML Class M1

Calibration Weight Set 2 kg Range OIML Class F1

Calibration Weight Set 500 mg - 1 mg OIML Class F2 ( kit with Case)

Calibration Weight Set 2 kg Range OIML Class E2

Calibration Weight 25 kg - 1 g ASTM Class 1 (kit with case)

Calibration Weight 20 kg - 1 mg, ASTM Class O

Calibration Weight 500 mg - 1 mg ASTM Class 3

Calibration Weight 500 mg - 1 mg ASTM Class 2

Calibration Weight 500 mg - 1 mg ASTM Class 1

Calibration Weight Counterpoise & Hanger, ASTM Class 7

Calibration Weight Kit 500 mg - 1 mg OIML Class E2 (Kit with case)

Calibration Weight kit 500 mg - 1 mg Class E1 (Kit with case)

Calibration Weight 500 mg - 50 g OIML Class M1 Sets

Calibration Weight Kit 5 kg - 10 g ASTM Class 1 (Kit w/case)

Calibration Weight Set 3 kg & 5 kg Range, ASTM Class 3

Calibration Weight Set 2 lb - 50 lb ASTM Class3

Calibration Weight 25 kg - 1 g, ASTM Class 2 (Kit with case)

Calibration Weight Set 100 g Range, ASTM Class 4

Calibration Weight Set 1 kg Range, ASTM Class 2

Calibration Weight 20 kg - 1 g, OIML Class F2 (kit w/case)

Calibration Weight Set 100 g Range, OIML Class F1

Calibration Weight 25 kg - 1 g ASTM Class 4

Calibration Weight 25 kg -1 g ASTM Class 3

Calibration Weight 25 kg - 1 g, ASTM Class 2

Calibration Weight 25 kg - 1 g ASTM Class 1

Calibration Weight 25 kg - 1 g ASTM Class 4 (kit with case)

Calibration Weight 20 kg - 1 g, OIML Class F1 (kit w/case)

Calibration Weight 20 kg - 1 g OIML Class E2 (Kit w/case)

Calibration Weight Set 20 kg & 25 kg Range, ASTM Class 1

Calibration Weight Set 1 kg Range ASTM Class 3

Calibration Weight Set 2 lb - 50 lb, ASTM Class 2

Calibration Weight Set 100 g Range, ASTM Class 0

Calibration Weight Set 1 kg Range, OIML Class E2

Calibration Weight Set 2 kg Range, OIML Class F2

Calibration Weight Set 500 mg - 50 g OIML Class F2 Sets

Calibration Weight Set 1 kg Range, OIML Class E1

Calibration Weight Set 1 kg Range, OIML Class F1

Calibration Weight 500 mg - 1 mg, OIML Class F1 ( kit with case)

Calibration Weight 20 kg - 1 g, OIML Class E1

Request Product Quote

Let's Stay in Touch!