Precision Weighing Balances
Your online source for balances, scales & calibration weights @ discount prices

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Cal-pak cal weight set - 500g, 50g, 200mg, class1 NVLAP certificate. Highly polished, alloy stainless steel weights. 200 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, 200mg

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Brand Model Capacity Readability
Sartorius Cal-pak calibration weight set500g, 50g, 200mg
Modes
Add. Features
Comparable Scales

Other Brands 50g Mass Class 1 NVLAP Cal Weight - $115.00

Other Brands 500g Laboratory Weight - $287.00

Other Brands 1kg ASTM Class 1 Weight - $227.00

Other Brands 200mg Standard Class 1 Calibration Weight - $103.00

Other Brands 500mg Calibration Weight - $103.00

Other Brands 500 gram Class 1 NVLAP Cert - $217.00

Sartorius Cal-pak calibration weight set 500g, 50g, 2g - $487.00

Sartorius Cal-pak calibration weight set 1kg, 100g, 20g - $642.00

Sartorius Cal-pak calibration weight set 20g, 2g, 200mg - $304.00

Sartorius Cal-pak calibration weight set500g, 50g, 200mg - $473.00
MSRP: $525.00
YOU PAY $473.00
Calibration Cal-Pak Weight Sets
(2-3 weeks lead time for all Cal-Pak weights and mass sets)
calibration weight set

 

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, 200mg Weight Set $473.00

3-piece Cal-Pak Weight Sets with NVLAP Cert
Weights
Class NVLAP
Certificate
Price
2g, 200mg, 1mg UltraClass YES
$304.00
5g, 500mg, 1mg UltraClass YES
$327.00
20g, 2g, 20mg Class 1 YES
$281.00
20g, 2g, 200mg Class 1 YES
$304.00
50g, 5g, 200mg Class 1 YES
$281.00
50g, 5g, 2g Class 1 YES
$304.00
100g, 10g, 20mg Class 1 YES
$337.00
100g, 10g, 200mg Class 1 YES
$337.00
100g, 10g, 2g Class 1 YES
$355.00
200g, 20g, 200mg Class 1 YES
$355.00
200g, 20g, 2g Class 1 YES
$372.00
500g, 50g, 20mg Class 1 YES
$473.00
500g, 50g, 200mg Class 1 YES
$473.00
500g, 50g, 2g Class 1 YES
$487.00
1kg, 100g, 2g Class 1 YES
$623.00
1kg, 100g, 20g Class 1 YES
$642.00
2kg, 200g, 2g Class 1 YES
$910.00
2kg, 200g, 20g Class 1 YES
$927.00
5kg, 500g, 2g Class 1 YES
$1150.00
5kg, 500g, 20g Class 1 YES
$1169.00
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.

(2-3 weeks lead time for all Class 1 Cal-Pak weights and mass sets
and 3-4 weeks lead time for all UltraClass Cal-Pak sets. )


calibration masses
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.
 
calibration weight
 
precision lab calibration weights

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.
precision calibration weights

Surface Finish:

All surfaces are polished to a perfect, mirror-like finish and conform to specifications in ANSI/ASTM E617
precision calibration weight storage case
 

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.

laboratory weights

(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
milligram weight set
calibration leaf weights

(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.

Traceable Certificate 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

NVLAP Calibration Certificate Example NVLAP Calibration Certificate (click)

 


See entire range of Calibration Weights and Sets

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