Cal-pak cal weight set - 500g, 50g, 20mg, class1 NVLAP certificate. Highly polished, alloy stainless steel weights. 20 mg weight is 1 piece construction with no adjusting cavity with one end turned up for easy handling. 500 g and 50 g weights are 2 piece construction with adjusting cavity. Supplied in rugged polypropylene case with each individual weight in its own high quality polycarbonate case.

The USB Flash Drive provides you with a paperless system for certificates to be easily accessed and maintained over time. USB Flash Drive can be returned each time the Cal-Paks® are recalibrated and the new NVLAP Certificate will be added to the Flash Drive. This provides a detailed history of the weights all in one convenient place with no paperwork to keep on file.

Supplied in a rugged polycarbonate case with each individual weight in its own high quality polycarbonate case. Accessories for proper handling and care of weights are also included.

Components and carrying case are linked through the use of a unique serial number. You can trace your individual weights to the appropriate NVLAP Certificate and master carrying case.

We also offer a huge selection of Laboratory Calibration Weights and Calibration Mass Sets with Calibration certification and NIST Traceable Calibration for lab balances at www.calibrationweight.com

Cal-Paks® is a registered trademark of Henry Troemner LLC

PLEASE NOTE THE LEAD TIME! Calibration weights with certificates are not an off-the-shelf item, no matter who you purchase them from. The manufacturer performs the calibration on each Cal-Pak as the order comes in. The lead time is 2 - 3 weeks. IF YOU CAN'T WORK WITH THIS LEAD TIME - DON'T ORDER THIS WEIGHT SET!

Sartorius Cal-pak calibration weight set500g, 50g, 20mg

Calibration Cal-Pak Weight Sets (2-3 weeks lead time for all Cal-Pak weights and mass sets)
The USB Flash Drive provides you with a paperless system for certificates to be easily accessed and maintained over time. The USB Flash Drive can be returned each time the Cal-Paks™ are recalibrated and the new NVLAP Certificate will be added to the Flash Drive. This provides a detailed history of the weights all in one convenient place with no paperwork to keep on file.
500g, 50g, 20mg Weight Set	$483.00

12-piece Weight Set, ASTM shape Weight Sets, ASTM Shape Class Part Number Report of Traceability NVLAP Certificate Price Knob-style weights.       1g-500g Class 1 PWB7218-1W NO YES $2063.00 1g-500g Class 2 PWB7218-2W NO YES $2011.00 1g-500g Class 1 PWB7218-1T YES NO $1804.00 1g-500g Class 2 PWB7218-2T YES NO $1795.00 Weights Included: 1 g, 2 x 2 g, 5 g, 10 g, 2 x 20 g, 50 g, 100 g, 2 x 200 g, 500 g All calibration weights are not returnable.  Once your order has been placed it CAN NOT be cancelled.  Please carefully consider this prior to placing your order.  The reason for this is these weights are custom manufactured and are certified on the date they were made.  In addition, if you touch the calibration weight with your fingers the oil in your skin would change the tolerance and we can not take this chance if the weight was returned.

Construction and General Shape: Troemner Calibration Weights 1 gram and larger consist of a body and a lifting knob. The lifting knob is specifically designed for use with forceps, tweezers or some other lifting device. Weight bottoms are slightly recessed to expose the smallest possible area to wear. Each weight is marked with its nominal value. Weights 500 mg and lower are made of sheet metal and are one-piece construction with one side turned up to make them easy to handle with forceps. Depending on the class, these weights may or may not be marked with their nominal value.

Surface Finish: All surfaces are polished to a perfect, mirror-like finish and conform to specifications in ANSI/ASTM E617

Polycarbonate Cases for Individual Weights: To safeguard your Troemner Alloy 8 Stainless Steel Precision Calibration Weights, attractive, durable, high quality, polycarbonate cases are provided with weights 1 mg through 2 kg. The polycarbonate cases feature a custom insert, bumper, and locking lid to assure weights are held securely within the case and avoid movement. Polycarbonate cases for weights greater than 2kg are available at an additional cost. Selecting The Right Weight: Check you scale's manual or specification sheet to find the weight value required to calibrate your scale. It is recommended that the weight selected to calibrate a balance and/or scale have a tolerance small enough as not to be detected by the balance and/or scale. Troemner recommends the tolerance of a weight selected for calibrating a balance and/or scale is no more than 1/3 of the readability or precision of the balance and/or scale being calibrated. If this cannot be achieved, it is suggested that a Class 1 Electronic Balance Calibration Weight with a NVLAP certificate be ordered which provides the actual mass value for the weight which reduces measurement uncertainty. Electronic Balance Calibration Weights can also be used to check or verify the accuracy of your balance and/or scale between calibrations. It is recommended that the user check a balance and/or scale prior to each use. Keeping the weight at or near the balance and/or scale keeps the weight at the same temperature as the equipment.

(7-10 days lead time for all calibration weights and mass sets) Nominal Value Class Part Number Report of Traceability NVLAP Certification Tolerance Price Small Knob Style, ASTM Shape         2000 g Class 1 PWB7012-1W NO YES ±5.00 mg $820.00 1000 g Class 1 PWB7013-1W NO YES ±2.50 mg $565.00 500 g Class 1 PWB7014-1W NO YES ±1.2 mg $287.00 300 g Class 1 PWB7015-1W NO YES ±0.75 mg $237.00 200 g Class 1 PWB7016-1W NO YES ±0.50 mg $235.00 100 g Class 1 PWB7017-1W NO YES ±0.250 mg $139.00 50 g Class 1 PWB7018-1W NO YES ±0.120 mg $126.00 30 g Class 1 PWB7019-1W NO YES ±0.074 mg $125.00 20 g Class 1 PWB7020-1W NO YES ±0.074 mg $125.00 10 g Class 1 PWB7021-1W NO YES ±0.050 mg $125.00 5 g Class 1 PWB7022-1W NO YES ±0.034 mg $125.00 2 g Class 1 PWB7024-1W NO YES ±0.034 mg $125.00 1 g Class 1 PWB7025-1W NO YES ±0.034 mg $125.00 (7-10 days lead time for all calibration weights and mass sets)   Nominal Value Class Part Number Report of Traceability NVLAP Certification Tolerance Price Flat Weights, ASTM Shape         500 mg Class 1 PWB7026-1W NO YES ±0.010 mg $ 103.00 200 mg Class 1 PWB7028-1W NO YES ±0.010 mg   $ 103.00 100 mg Class 1 PWB7029-1W NO YES ±0.010 mg   $ 103.00 50 mg Class 1 PWB7030-1W NO YES ±0.010 mg   $ 103.00 20 mg Class 1 PWB7032-1W NO YES ±0.010 mg   $ 103.00 10 mg Class 1 PWB7033-1W NO YES ±0.010 mg   $ 103.00 5 mg Class 1 PWB7034-1W NO YES ±0.010 mg   $ 103.00 3 mg Class 1 PWB7035-1W NO YES ±0.010 mg   $ 103.00 2 mg Class 1 PWB7036-1W NO YES ±0.010 mg   $ 103.00 1 mg Class 1 PWB7037-1W NO YES ±0.010 mg   $ 103.00 The weight value can deviate above or below the nominal value by the tolerance defined.  To determine the tolerance of a mass, look at the denomination or nominal value of the weight and the appropriate class you need. Custom weight sets are available upon request by calling Precision Weighing Balances at 978-521-7095 All calibration weights are not returnable.  Once your order has been placed it CAN NOT be cancelled.  Please carefully consider this prior to placing your order.  The reason for this is these weights are custom manufactured and are certified on the date they were made.  In addition, if you touch the calibration weight with your fingers the oil in your skin would change the tolerance and we can not take this chance if the weight was returned.

Certificate Options 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 Certificate measurement process is based on a single standard and utilizes one series of comparisons The Traceable Certificate includes nominal value, mass correction, uncertainty and tolerance for each weight in addition to the basic customer information such as name, address, purchase order number, date of calibration, accuracy class, density and statement of traceability to NIST. Example Traceable Certificate (click) NVLAP Weight Calibration Certificate The 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. 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 Class 0 and 1. Troemner performs a multiple weighing procedure utilizing their secondary working standards to determine the mass of a customer's weight. Procedures and processes used to generate this multi-page certificate, as well as its format and content, are prescribed by NVLAP. Users held absolutely accountable for their weights should order weights with NVLAP certification. Customer name & address Date of calibration Equipment and standards used in the calibration Accuracy class True mass value (mass in a vacuum) "As found" mass correction (for recalibration) and "as left" mass corrections for each weight Uncertainty of measurement process for each weight. Uncertainty to tolerance ratios are guaranteed. Environmental conditions during test Construction and density of the weight(s) Calibration procedure used A statement of traceability to NIST Helpful list of terms and definitions Example NVLAP Calibration Certificate (click)

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