Analytical Weight Box Brass – 1mg to 100g
Product Code : SCL-PLE-11733
The StemAids Analytical Weight Box is a comprehensive set of precision mass standards engineered for the calibration of analytical balances and the empirical study of gravimetric laws. Optimized for University-level Chemistry and Advanced TVET physics, this set provides a range of weights from 1mg to 100g. Manufactured to ISO 9001:2015 standards, it facilitates the quantification of chemical stoichiometry and the verification of the Law of Conservation of Mass within institutional laboratory environments.
Technical Specifications
|
Tender Specification |
OEM Technical Detail |
|
Mass Range |
1mg to 100g (Total 211.11g in standard configuration) |
|
Material (Grams) |
High-density polished brass with clear protective lacquer |
|
Material (Milligrams) |
Aluminum or German Silver foil fractions for high corrosion resistance |
|
Weight Configuration |
100,50,20(2),10,5,2(2),1 (Grams and Milligrams) |
|
Accuracy Class |
Equivalent to OIML Class M1 or F2 (Batch dependent) |
|
Storage Chassis |
Polished teakwood or seasoned hardwood box with velvet lining |
|
Included Accessories |
High-precision stainless steel forceps and 0.01mm riders |
|
ISO Compliance Code |
Manufactured under ISO 9001:2015 Quality Management Systems |
|
HS Code |
8423.90.00 (Weights of all kinds for weighing machinery) |
Key Pedagogical Outcomes (Bloom’s Taxonomy Alignment)
- Gravimetric Standardization Interface: Facilitates student visualization of absolute mass units, supporting Analytical Chemistry and Quantitative Analysis modules.
- Mass Quantification: Enables the physical study of chemical composition, allowing learners to apply precision weighing to determine the empirical formulas of compounds.
- Fractional Displacement Analysis: Supports the analysis of sensitive balances by utilizing the fractional milligram foils and forceps to achieve absolute equilibrium.
- Calibration Protocol Evaluation: Allows students to evaluate the impact of environmental factors (dust, oils, moisture) on measurement precision by practicing standardized handling techniques.
International Logistics & Compliance
StemAids ensures comprehensive OEM readiness for global institutional procurement:
- Packaging: Export-grade seaworthy crating (ISPM-15 compliant) featuring high-density foam stabilization to prevent weights from shifting and scratching during transit.
- Documentation: Includes Manufacturer’s Authorization Form (MAF), Certificate of Conformance (CoC), and individual mass verification certificates.
- Durability: Tropicalized design featuring specialized anti-tarnish coatings and moisture-resistant velvet lining to maintain mass accuracy in high-humidity climates (up to 90% RH).
Direct OEM Sourcing Advantages
Procuring the StemAids Analytical Weight Box directly ensures vertical manufacturing control:
- In-House Precision Adjustment: Every weight is individually adjusted using master reference standards to ensure the center of gravity and total mass meet institutional accuracy requirements.
- Batch-Tested for Uniform Reliability: The wooden housing undergoes a vacuum-seasoning process to ensure no warping occurs, maintaining a dust-tight seal for the sensitive fractional weights.
- Direct Factory Spares Availability: Guaranteed availability of replacement 1mg–500mg foil fractions and forceps to maintain complete sets.
- Manufacturing Control: Direct oversight of the brass polishing and lacquering process ensures a non-porous surface, preventing atmospheric oxidation from altering the weight’s mass over time.
