Troemner Calibration Weights & Sets	Authorized Dealer
Achieve the highest level of accuracy with Troemner calibration weights. Ideal for laboratories and industrial settings, these precision weights ensure your scales deliver reliable measurements every time.

Troemner's been killing it in precision measurements since 1838! They've been the OG leader in metrology, leveling up with ISO 9001 certification and getting major props from the National Institute of Standards and Technology (NIST) through the National Voluntary Laboratory Accreditation Program (NVLAP) and the United Kingdom Accreditation Service (UKAS). Troemner's all about that excellence life, raising the industry standards like it's no biggie. Legends only
Achieve the highest level of accuracy with Troemner calibration weights. Ideal for laboratories and industrial settings, these precision weights ensure your scales deliver reliable measurements every time.

Calibration Weights by Class

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Class 0 - Calibration Weights

Class 0 1 mg - 50 kg    500mg - 20g    50g - 100g    200g - 500g - 1kg    2kg - 5kg - 10kg    20kg - 25kg - 30kg - 50kg    Metric Class 0    Weight Sets Class 0    Weight Sets Class 0    Weight Sets Class 0    Weight Sets Class 0    Weight Sets Class 0 Class 0 Used as a primary reference for calibrating other reference standards and weights. Class 0 weights are intended to be used in metrology laboratories where the stability of the environment and careful handling are assured. Although very stable, one-piece construction Class 0 weights have no method of adjustment and are not suitable for general laboratory use. The uncertainty is guaranteed to be 1/3 the tolerance. Note: Troemner also has a Class 00 and a Class 000. Please Call 718-336-5900 or email [email protected] For Pricing Class 00 Used as a primary reference for calibrating other reference standards and weights. Class 00 weights are intended to be used in metrology laboratories where the stability of the environment and careful handling are assured. Although very stable, one-piece construction Class 00 weights have no method of adjustment and are not suitable for general laboratory use. Class 00 weight tolerances are equal to OIML R111 Class E1 tolerances and are tighter than Class 0. The uncertainty is guaranteed to be 1/3 of the tolerance. Class 00 is pending approval of ANSI/ASTM E617. Class 000 Used as a primary reference for calibrating other reference standards and weights. Class 000 weights are intended to be used in metrology laboratories where the stability of the environment and careful handling are assured. Although very stable, one-piece construction Class 000 weights have no method of adjustment and are not suitable for general laboratory use. Class 000 is 1/2 the tolerance of Class 00 and the uncertainty is the best measurement reported in our NVLAP (Laboratory Code 105013-0) Scope of Accreditation which is guaranteed to be 1/3 the tolerance or better. Class 000 is pending approval of ANSI/ASTM E617.

Ultra Class - Calibration Weights

ANSI/ASTM E617 Ultra Class 1 mg - 50 kg    10 g - 30 kg Metric    Metric Ultra Class    Ultra Class Electronic Balance    1 mg - 50 kg    2 g - 5 g    500mg - 20g    50g - 100g    200g - 500g - 1kg    2kg - 5kg - 10kg    20kg - 25kg - 30kg - 50kg    Cal-Paks Ultra Class    Weight Sets Ultra Class    Weight Sets Ultra Class    Weight Sets Ultra Class    Weight Sets Ultra Class    Weight Sets Ultra Class    Weight Sets Ultra Class    Ultra Class / Class 0 - For analytical and microbalances with readability as low as 1 g. These are the most precise two-piece weights available, with weight tolerances 40 to 50% better than ANSI/ASTM Class 1. Ultra Class weights combine high precision with the advantage of two-piece construction (1 g and larger) to avoid costly issues associated with one-piece weights.

Class 1 - Calibration Weights

ANSI/ASTM Class 1 0.01 oz - 8 oz 0.001 lb - 100 lb    10 g - 30 kg    10 g - 30 kg Metric    0.001 lb - 50 lb Avoirdupois    Avoirdupois Class 1    Metric Class 1    Class 1 Electronic Balance    Class 1 Electronic Balance    20g - 500g    500 mg - 20 g    50g - 100g    200g - 500g - 1kg    2kg - 5kg - 10kg    20kg - 25kg - 30kg - 50kg    Cal-Paks Class 1    Weight Sets Class 1    Weight Sets Class 1    Weight Sets Class 1    Weight Sets Class 1    Weight Sets Class 1    Class 1 - Can be used as a reference standard in calibrating other weights and is appropriate for calibrating high-precision analytical balances with a readability as low as 0.1 mg to 0.01 mg.

Class 2 - Calibration Weights

ANSI/ASTM Class 2 0.01 oz - 8 oz 0.001 lb - 100 lb    1 mg - 50 kg    500 mg - 20 g    50g - 100g    200g - 500g - 1kg    2kg - 5kg - 10kg    20kg - 25kg - 30kg - 50kg    Avoirdupois Class 2    Metric Class 2    Weight Sets Class 2    Weight Sets Class 2    Weight Sets Class 2    Weight Sets Class 2    Weight Sets Class 2    Class 2 - Appropriate for calibrating high-precision top loading balances with a readability as low as 0.01 g to 0.001 g.

Class 3 - Calibration Weights

ANSI/ASTM Class 3 0.01 oz - 8 oz 0.001 lb - 100 lb    1 mg - 50 kg    500 mg - 20 g    50g - 100g    200g - 500g - 1kg    2kg - 5kg - 10kg    20kg - 25kg - 30kg - 50kg    Avoirdupois Class 3    Metric Class 3    Weight Sets Class 3    Weight Sets Class 3    Weight Sets Class 3    Weight Sets Class 3    Weight Sets Class 3    Class 3 - Appropriate for calibrating high-precision top loading balances with a readability as low as 0.01 g to 0.001 g.

Class 4 - Calibration Weights

ANSI/ASTM Class 4    0.01 oz - 8 oz 0.001 lb - 100 lb    1 mg - 50 kg    10 g - 30 kg       Avoirdupois Class 4    Metric Class 4    Metric Electronic Balance       500 mg - 20 g    50g - 100g    200g - 500g - 1kg    2kg - 5kg - 10kg    20kg - 25kg - 30kg - 50kg       Weight Sets Class 4    Weight Sets Class 4    Weight Sets Class 4    Weight Sets Class 4    Weight Sets Class 4    Class 4 - For calibration of semi-analytical balances and for student use..

Class F - Calibration Weights

5 - 5000 lb Cast Iron Grip    2 - 2000 kg Cast Iron Grip    0.001 lb - 2000 lb 0.05 oz - 12 oz    1mg - 2000 kg    Cube Weights    Recessed Grip Avoirdupois Class F    Metric Class F    Avoirdupois Class F    Metric Class F    Individual Class F    Individual Class F Weight Sets    Weight Sets    Weight Sets    Weight Sets    5g, 50g, 100g Class F    300g, 500g, 1000g Class F    2000g Class F    5000g Class F    Weight Sets    Weight Sets    Weight Sets    Weight Sets    Weight Sets    4 oz, 8 oz, 0.2 lb, 0.3 lb Class F    1 lb Class F    2 lb Class F    5 lb Class F    10 lb Class F    Class F - Primarily used to test commercial weighing devices by state and local weights and measures, device installers, and service technicians.

Class 7 - Calibration Weights
ANSI/ASTM Class 7    10 - 1000 g & 0.1 - 10 N    1 g - 500 g    1 mg - 2000 g    50 g - 0.5 N       Hook Class 7    Slotted Class 7    Metric Class 7    Hanger Class 7    Class 7 - For rough weighing operations in physical and chemical laboratories, such as force ..

Class E1 - Calibration Weights
OIML Class E1    1 mg - 500 mg    1 g - 50 kg       Metric Class E1    Metric Electronic Balance       500 mg - 20 g    50g - 100g    200g - 500g - 1kg    2kg - 5kg - 10kg    20kg - 25kg - 30kg - 50kg       Weight Sets Class E1    Weight Sets Class E1    Weight Sets Class E1    Weight Sets Class E1    Weight Sets Class E1

Class E2 - Calibration Weights
OIML Class E2    1 mg - 500 mg    1 g - 50 kg       Metric Class E2    Metric Electronic Balance       500 mg - 20 g    50g - 100g    200g - 500g - 1kg    2kg - 5kg - 10kg    20kg - 25kg - 30kg - 50kg       Weight Sets Class E2    Weight Sets Class E2    Weight Sets Class E2    Weight Sets Class E2    Weight Sets Class E2

Class F1 - Calibration Weights
OIML Class F1    1 mg - 500 mg    1 g - 50 kg       Metric Class F1    Metric Electronic Balance       500 mg - 20 g    50g - 100g    200g - 500g - 1kg    2kg - 5kg - 10kg    20kg - 25kg - 30kg - 50kg       Weight Sets Class F1    Weight Sets Class F1    Weight Sets Class F1    Weight Sets Class F1    Weight Sets Class F1

Class F2 - Calibration Weights
OIML Class F2    1 mg - 500 mg    1 g - 50 kg       Metric Class F2    Metric Electronic Balance       500 mg - 20 g    50g - 100g    200g - 500g - 1kg    2kg - 5kg - 10kg    20kg - 25kg - 30kg - 50kg       Weight Sets Class F2    Weight Sets Class F2    Weight Sets Class F2    Weight Sets Class F2    Weight Sets Class F2

Troemner's Traceable Certificate
The Traceable Certificate is designed for those laboratories and companies that require traceability but do not need to meet any stringent regulatory requirements. The Traceable Weight Certificate measurement process is based on a single standard and utilizes one series of comparisons.
Sample Cert

Troemner's NVLAP Accredited Certificate
Troemner's NVLAP Accredited Certificate provides compliance in both measurement process and data reported to the customer to meet a variety of standards including NVLAP Handbook 150-2, ISO/IEC 9000, ISO/IEC 17025, FDA, GMP. GLP, DOD, ANSI/NCSL Z540-1 and nuclear requirements. Troemner's NVLAP Laboratory Code is 105013-0. The NIST administered National Voluntary Laboratory Accreditation Program (NVLAP) approves, through periodic audits, all processing and weighing procedures, as well as certificate format and content. Calibration procedures vary by tolerance class requested. For example, for higher accuracy classes such as Troemner UltraClass Series, ANSI/ASTM E617 Class 000, 00, 0 and 1, OIML R 111 Class E0, E1, E2 and F1, Troemner performs a multiple weighing procedure utilizing standards to determine the mass of a customer's weight.
Sample Cert