Ensure weighing accuracy with certified calibration weights
Calibration weights are precision mass artefacts used to verify, adjust and document scale performance, providing process security and repeatable results in production, quality assurance and laboratories. They come in defined nominal values and accuracy classes such as E1, F1 and M1, so you can match the right weight to the scale’s readability and application to avoid false confidence or unnecessary cost. Correct handling—using gloves or tweezers, storing weights in their case and avoiding contamination—keeps them reliable, while routine checks at multiple points in the weighing range reveal issues caused by vibration or temperature changes.
Dust Brush for Cleaning Test Weights, Quick Clean - KERN
Take advantage of a simple, reliable accessory that keeps calibration masses free from dust while preserving accuracy and prolonging service life. The combination of gentle bristles, low weight and practical handling ensures efficient routine maintenance of scales and weights. Order the KERN brush directly via Metav Werkzeuge or consult our advisors for further details. KERN 318-270 Dust Brush — compact brush for gentle cleaning of calibration weights The KERN 318-270 dust brush is a lightweight accessory designed to remove dust and particles from calibration weights and weighing surfaces in laboratories and workshops. Soft bristles for gentle cleaning Designed for calibration weights Lightweight and easy to handle Preserve measurement accuracy with gentle, targeted cleaning Regular cleaning of calibration masses prevents contamination that can alter mass values and affect the repeatability of results. The compact brush offers gentle bristles that remove dust without abrading surfaces or leaving residues, helping to maintain the precision of weights used in verification and calibration. For technicians and workshop teams, this reduces the frequency of recalibration and supports consistent measurement quality across production and quality-assurance processes. Practical handling for routine maintenance and quick interventions The accessory is intentionally lightweight and easy to manoeuvre during daily maintenance tasks, enabling swift removal of particles from weight stacks and pans without disassembly. Ergonomic handling minimises the risk of accidental knocks or slips near sensitive balances, while the brush design supports access to small grooves and recessed areas. This results in faster cleaning cycles and less downtime, contributing to a more efficient workflow in busy metrology environments. Reliability in supply and fit for professional environments The brush is supplied by a recognised manufacturer for weighing technology and suits workshops, service departments and calibration laboratories that require straightforward maintenance tools. Paired with Metav Werkzeuge’s role as a dependable distributor, this accessory supports a transparent supply chain and practical on-bench readiness. Investing in simple, purpose-built maintenance tools safeguards the performance of weighing equipment and complements broader quality-management measures. Contact Metav Werkzeuge to procure the KERN 318-270 dust brush for dependable maintenance of calibration weights or to request additional technical information Technical data Article number: 318 SKU: 318-270 Manufacturer: KERN GTIN: 4045761004146 Facts Weight: 0.01 kg Eclass: 21041109 Special features Suitable for cleaning calibration weights Rapid dispatch available via distributor FAQ How does this brush protect calibration accuracy? The brush removes dust and particles that can adhere to masses; using the KERN 318-270 dust brush helps maintain the declared mass values and stable measurement results. Is the brush suitable for all types of laboratory weights? The brush is intended for routine cleaning of calibration weights and standard weighing pans; compatibility with specialised mass geometries should be assessed case by case. Can the brush be used on balance pans without causing damage? Yes, the soft bristles are designed for gentle cleaning and avoid abrasive contact that could harm pans or plated surfaces. Manufacturer: KERN — Address: not specified — Contact: not specified
Ensure measurement reliability with certified test weights
Test weights are defined mass artefacts used to verify, adjust and document the performance of scales across production, laboratory and quality assurance environments. They provide the objective reference needed to confirm accuracy, repeatability and process reliability where documented results matter.
How test weights work and where they matter
Test weights serve as traceable references with fixed nominal values — for example 1 g, 100 g, 1 kg or 20 kg — and are manufactured to specific accuracy classes so that permitted deviations are known and comparable. In practice they are used to check a scale’s reading at one or several points within its range, to distinguish between calibration (checking and documenting deviation) and adjustment (setting the scale to read correctly). Typical situations include routine production checks, audit-prepared quality control, laboratory validation and fault-finding when instability, vibration or environmental factors affect readings.
Immediate performance gains for production and quality assurance
- increase measurement confidence by using weights matched to the application and scale resolution
- reduce downtime and troubleshooting time through systematic multi-point checks (lower, mid, upper range)
- protect process validity by choosing the correct accuracy class: E1, E2, F1, F2, M1, M2, M3
- limit handling-related error: use tweezers for small weights and clean gloves for larger items
- extend usable lifetime through disciplined storage in protective cases and regular control or recalibration
Why KERN & Sohn is the premium choice and how Metav supports you
KERN & Sohn brings a long heritage in precision weighing and measuring technology, offering extensive product ranges and services such as DAkkS-accredited calibration. Metav supplies these solutions with a practical focus: democratising precision by making traceable measuring tools available to workshops and specialist buyers across Europe. With over 48,000 customers, more than 250,000 products and a logistics and quality filter based in Emmerich, Metav combines specialist selection with dependable supply for industry and trade.
Technical data at a glance
- nominal values: 1 g, 100 g, 1 kg, 20 kg
- accuracy classes: E1, E2, F1, F2, M1, M2, M3
- typical applications: quality assurance; production; laboratory
- handling: tweezers for small weights; clean gloves for larger weights
- storage: protective case; dust-free environment
- check routine: lower, middle, upper range
- purpose: calibration (check & document); adjustment (set scale)
FAQ
What exactly are test weights?
Test weights are defined mass artefacts with fixed nominal values that are used to check, adjust or document scale performance within quality assurance and calibration workflows.
Which accuracy classes are available and when should I use them?
Accuracy classes range from E1/E2 for the highest demands, through F1/F2 for precise everyday applications, to M1–M3 for robust industrial or platform scales. Select the class that matches the required measurement uncertainty and the operating environment.
How often should I check my scale with test weights?
Frequency depends on the criticality of the process: critical operations often require daily or per-shift checks, while less critical applications may use weekly or monthly intervals; always check after location changes or suspect readings.
Why must test weights not be touched with bare hands?
Skin oils and moisture alter surface mass and can introduce measurable errors, especially for small nominal values. Use tweezers or clean gloves to maintain traceability and reliability.
What is the practical difference between calibration and adjustment when using test weights?
Calibration documents how far a scale deviates from the nominal value; adjustment actively corrects the scale to bring it back into tolerance. Both processes make use of test weights but serve different quality objectives.
Metav and KERN & Sohn provide the products, documentation and calibration pathways to integrate test weights into routine quality assurance — ensuring your measurements remain verifiable, repeatable and audit-ready.
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