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Gilson OBA-403W Calibration Mass, ASTM Class 4, 30g, NVLAP

Price $198.98
Condition:
New
Minimum Purchase:
1 unit
SKU:
V015.OBA-403W

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With more sophisticated testing and more frequent auditing of laboratory equipment, it has become increasingly necessary for laboratories to calibrate their own balances. Calibration Masses are offered to check span and linearity and calibrate electronic balances. The commonly used Span Calibration method uses one-point calibration with a single mass approximately equal to the capacity of the balance. Some balances use the Linearity Calibration method which allows the user to select multiple mass settings, normally defined as zero, center (half span), and full span of the balances capacity. This method minimizes deviation throughout the balance's weighing range.

ASTM Class 4 weights are satin-finished stainless steel. Recessed grip handles are part of the 10kg and 20kg weights for easier handling and stacking. Individual weights from 10—4,000g include a glove and protective, foam-lined plastic case.

ASTM Class 4 weights are perfect for most balances less sensitive than 0.01g and applications having average accuracy requirements.

NVLAP Weight Calibration Certificate is included for users who must provide certification to ISO, FDA, ANSI or other requirements. Report format and contents comply with NVLAP requirements.


The Gilson OBA-403W Calibration Mass is an essential tool for laboratories seeking to calibrate their own balances. With the increasing importance of accurate testing and auditing, it is crucial to have reliable calibration equipment. This calibration mass is specifically designed to check the span and linearity of electronic balances, ensuring precise measurements.

The commonly used Span Calibration method involves using a single mass that is approximately equal to the capacity of the balance. This method is used for balances that require one-point calibration. On the other hand, the Linearity Calibration method is suitable for balances that allow the user to select multiple mass settings, such as zero, center, and full span. By providing these options, this calibration mass ensures minimal deviation throughout the balance's weighing range.

Constructed from satin-finished stainless steel, the Gilson OBA-403W is an ASTM Class 4 weight. This high-quality material not only guarantees durability but also provides a professional appearance. The weight is available in a range of sizes, from 10g to 4,000g. The 10kg and 20kg weights even feature recessed grip handles, making them easier to handle and stack.

Each individual weight from 10g to 4,000g comes with a protective, foam-lined plastic case and a glove. This ensures the weight remains in excellent condition and allows for easy storage and transportation. The foam lining provides extra protection against scratches and impacts, keeping the weight safe during handling.

The Gilson OBA-403W Calibration Mass is suitable for most balances that are less sensitive than 0.01g. It is especially recommended for applications with average accuracy requirements. With this calibration mass, laboratories can achieve accurate and reliable measurements, meeting the demands of ISO, FDA, ANSI, and other certification requirements.

For users who need to provide certification, the Gilson OBA-403W includes an NVLAP Weight Calibration Certificate. The report format and contents comply with NVLAP requirements, ensuring the weight is certified and meets the necessary standards.

Choose the Gilson OBA-403W Calibration Mass for precise and efficient balance calibration, ensuring the accuracy and reliability of your laboratory's measurements.

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