Calibration Weights

Troemner Analytical Precision Weights | UltraClass, ANSI/ASTM E617
Manufactured by Troemner to ASTM E617 specifications and using the finest stainless including Alloy 8, the Troemner Analytical Precision Weights are the most common in the US for use as mass reference standards or for precision balance calibration.

Individual sizes from 1 mg to 50 kg and 1/64 oz to 100 lb with sets from 500 mg-1 mg to 50 kg-1 mg. Available in Troemner UltraClass Series and ASTM Class 000, 00, 0, 1, 2, 3, or 4.
Troemner OIML Precision Weights | OIML R 111 and UltraClass Series
OIML Precision Weights conform to the standards of the Organisation Internationale de Metrologie Legale International Recommendation 111-1 (OIML R 111). The weights are manufactured from the finest stainless steels available including Troemner Alloy 8 Stainless Steel.

Individual sizes are available from 1 mg to 50 kg and sets from 500 mg-1 mg to 50 kg-1 mg.
Weights are calibrated to Troemner UltraClass Series, Class E0*, or OIML Class E1, E2, F1, and F2.

* E0 is a theoretical tolerance that is 50% of OIML R 111 Class E1

Troemner Microgram Precision Weights

Troemner's microgram weights range in size from 0.5 through 0.05mg. Weights are available in Troemner UltraClass Platinum with a NVLAP Accredited Certificate. Troemner UltraClass Platinum is equivalent to ANSI/ASTM Class 000. Individual weights are supplied in polycarbonate case. Weight sets are supplied in a polycarbonate case with aluminum insert with individual compartments for each weight. Polycarbonate case sits inside an attractive aluminum master carrying case. Accessories for proper care and handling of weights are supplied. Certificate is provided on a USB Flash Drive.

Troemner Cal-Paks | Analytical and OIML Precision Calibration Weights
Cal-Paks include 3 high quality precision weights including; calibration weight, 10% of the calibration weight and minimum weight.
Troemner Electronic Balance Test Weights | ANSI/ASTM E617, UltraClass
Electronic Balance weights are intended for routine calibration, test, and verification of electronic balances and/or scales.

Available in sizes from 10 g to 30 kg and weight sets from 1 kg to 100 g.
Weights are calibrated to Troemner UltraClass Series or ASTM Class 1, 2, 3, or 4.
Troemner Heavy Capacity Weights | ANSI/ASTM E617, NIST Class F
Stainless Steel Heavy Capacity Weights are an ideal solution for the food, beverage, pharmaceutical, nuclear, and fine chemical industries. Manufactured from stainless steel, the weights are highly stable and resistant to corrosion – appropriate for wash down environments and as replacement for cast iron weights.

Metric sizes are available from 20 kg to 10,000 kg (please call for 2,000 kg and above) and 75 lb to 20,000 lb (please call for 10,000 lb and above).
Available in ASTM Class 2*, 3*, 4, 5, 6, and NIST Class F (please call).
Troemner Stainless Steel Test Weights | NIST Class F Servicemen Weights
NIST Class F Stainless weights are commonly used by scale and balance service technicians for verification and testing. Also for hobbyist such as verifying reload weight.

Styles include Cylindrical, Cube, and Grip Handle. Metric sizes from 1 mg to 30 kg. Additionally available in Avoirdupois oz, lb, troy oz, grain (GN), and pennyweight (dwt) units.
Adjusted to NIST Class F.
Troemner Cast Iron Test Weights | Grip Handle, Block, Slotted and Hanger Weights | NIST Class F
Styles include Grip Handle, Block (heavy capacity), Slotted, and Hanger.

Metric (gold in color) sizes from 2 kg to 2,000 kg and Avoirdupois (silver in color) from 5 lb to 5,000 lb
Manufactured to meet NIST Handbook 105-1 specifications.
Adjusted to NIST Class F or ASTM Class 4, 5, 6, 7 (please call).
Troemner Stainless Steel Slotted Weights | NIST Class F
Styles include Slotted Flat, Slotted Interlocking, and assorted length Weight Hangers. Select a weight hanger length to accomodate the total required load.

Metric sizes 1 g to 25 kg and Avoirdupois 1/32 oz to 50 lb.
Adjusted to NIST Class F. ASTM Class 1 to 7 available by request.
Troemner Stainless Steel Hook Weights | NIST Class F
Hook weights are ideal for a variety of applications including pressure, torque, and tensile strength testing.

Styles include Hook on Top only, Hook on Top and Bottom, or Loose Hook Top and Bottom.
Metric sizes from 1 g to 25 kg and Avoirdupois from 1/32 oz to 50 lb.
Adjusted to NIST Class F. ASTM Class 1 to 7 available by request.
Troemner Economical Stainless Steel Weights | ASTM Class 7
Ideal where a quality weight is required at an economical price including use in education.

Individual weights and sets are available in Cylindrical, Hook, or Slotted styles.
Adjusted to ASTM Class 7.
Troemner Custom Weights | Custom designed for your application
Troemner can custom make precisely the weight for your application. Available in any size, denomination, tolerance, material, and shape.
Troemner Calibrated Weight Storage Carts
Weight carts are constructed completely of stainless steel and are calibrated to a specific weight and tolerance class if required. Carts are ideal for clean room use.
Troemner Weight Cases and Accessories | Cases, Forceps, Lifters, Gloves
Troemner offers a comprehensive line of Weight Cases and Accessories for all of your weight care and handling needs. Storage and shipping cases are available for your individual weights and weight sets as well as custom cases. Accessories include forceps, lifters, forks, brushes and gloves.
Troemner Custom Weight Cases | Available for all weight styles
Troemner is able to create a customized case to fit your exact requirements. Custom cases can be made for virtually any weight style and size and are available in a variety of materials.
Troemner Weight Calibration | Quality, Metrology, Mass Comparators and Robots to deliver unsurpassed uncertainties
ISO/IEC 17025, NVLAP* Accredited. From 1mg to 1000kg (0.000035oz to 3000lb) with capabilities from 0.050mg to 5000lb.