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.
The included Traceable Certificate documents traceability to NIST and compliance with ASTM or OIML specifications. The Traceable Certificate includes nominal value and correction, date of calibration, accuracy class, customer name and purchase order number.
The Gilson OBA-409T Calibration Mass is a high-quality calibration weight designed for laboratories that require precise and accurate balance calibration. With increasingly stringent testing and auditing procedures, it has become essential for laboratories to calibrate their own balances, and this calibration mass is the perfect tool for the job.
The OBA-409T is an ASTM Class 4 weight, made of satin-finished stainless steel. This ensures its durability and longevity, making it ideal for long-term use in demanding laboratory environments. The weight also features recessed grip handles, making it easier to handle and stack, particularly for the 10kg and 20kg weights.
One of the key benefits of the OBA-409T is its compatibility with different calibration methods. The commonly used Span Calibration method allows for one-point calibration with a single mass that is approximately equal to the capacity of the balance. For balances that use the Linearity Calibration method, the weight can be used to select multiple mass settings, including zero, center (half span), and full span. This method minimizes deviation throughout the weighing range of the balance, ensuring accurate results.
The OBA-409T is suitable for most balances that are less sensitive than 0.01g and applications that have average accuracy requirements. It is available in a range of individual weights, from 10g to 4,000g, and each weight comes with a glove and a protective, foam-lined plastic case. This ensures the weight remains in pristine condition, free from any potential damage or corrosion.
Additionally, the OBA-409T comes with a Traceable Certificate, which documents its traceability to NIST (National Institute of Standards and Technology) and compliance with ASTM or OIML specifications. The certificate includes important information such as the nominal value and correction, date of calibration, accuracy class, customer name, and purchase order number. This adds an extra layer of confidence in the accuracy and reliability of the calibration weight.
In conclusion, the Gilson OBA-409T Calibration Mass is a versatile and reliable tool for laboratories that require precise balance calibration. Its ASTM Class 4 construction, compatibility with different calibration methods, and included Traceable Certificate make it a valuable asset for ensuring accurate and reliable results in laboratory settings.