Why is the ASTM class important for calibration weights?

The ASTM class specifies the tolerance and uncertainty of the weight, indicating its suitability for calibrating balances of different precisions. Higher classes (e.g., Class 0, 1) have tighter tolerances for more sensitive balances.

How often should calibration weights be re-certified?

The re-certification interval depends on usage, environmental conditions, and internal quality procedures, but typically ranges from 12 to 24 months to ensure continued accuracy and traceability.

Can this 2kg weight be used to calibrate a 4kg capacity balance?

Yes, a 2kg weight can be used to calibrate a 4kg capacity balance, often as part of a multi-point calibration process or for verifying accuracy at specific points within the balance's range.

What is the purpose of the protective case?

The protective case shields the calibration weight from dust, scratches, and environmental contaminants, which could alter its mass and compromise its accuracy. It also aids in safe handling.

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Troemner - 2KG Calibration Weight

Name: 2KG Calibration Weight
Brand: Troemner
SKU: ANT17638.SR9B ANT19297SR9B
Price: 100 GBP
Availability: InStock

Price: £ 100

This listing is for the Troemner 2KG Cylindrical Calibration

The unit is in full working condition and is ready for immediate use

The Troemner 2 kg Certified Calibration Weight in a cylindrical design, compliant with ASTM standards, is a precision mass standard used for calibrating high-precision balances. These weights are essential for ensuring the accuracy and traceability of weighing instruments in laboratory and industrial settings.

Key Specifications

Material: High-grade stainless steel, such as Troemner Alloy 8, known for its uniform density, low magnetic properties, and resistance to corrosion.

Design: Cylindrical shape with a protective polycarbonate case.

Density: Approximately 7.95 g/cm³ at 20°C.

Tolerance: Varies by ASTM class; for instance, ASTM Class 3 weights typically have tighter tolerances suitable for calibrating balances with readability as low as 0.01 g to 0.001 g.

Certification: Available with ISO/IEC 17025 accredited certificates or traceable certificates, ensuring compliance with international calibration standards.

Cambridgeshire, United Kingdom

5,791 km away

Model Number

4KG

Stock Number

ANT17638.SR9B ANT19297SR9B

Machinery Masters View

Typical context for this category of equipment. Always confirm specifics with the seller.

Applications & Use Cases

Calibrating analytical balances and precision scales in pharmaceutical research and development.
Ensuring accuracy of weighing instruments in quality control laboratories for food and beverage production.
Verifying the performance of balances used in chemical and material science laboratories.
Maintaining traceability of measurements in metrology and calibration service providers.

Typical Specifications

Weight Material: Typically high-grade stainless steel, such as Troemner Alloy 8, for corrosion resistance and stability.
Design: Commonly cylindrical, often supplied with a protective case for handling and storage.
Nominal Mass: This unit is a 2kg weight; other common nominal masses for this class of equipment range from 1mg to 20kg.
Density: Approximately 7.95 g/cm³ at 20°C for stainless steel weights.
ASTM Class: Typically ASTM Class 3 or higher, suitable for calibrating balances with readability down to 0.001 g.
Certification: Often supplied with ISO/IEC 17025 accredited certificates or traceable certificates.
Maintenance: Requires careful handling to avoid damage or contamination; periodic re-certification is essential.

Frequently Asked Questions

The ASTM class specifies the tolerance and uncertainty of the weight, indicating its suitability for calibrating balances of different precisions. Higher classes (e.g., Class 0, 1) have tighter tolerances for more sensitive balances.

Machinery Masters Intelligence. General guidance for this category of equipment only, not a substitute for the seller's exact specifications. Always confirm details with the seller.