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The Role of Legal Metrology in Modern Weighing Inspection Systems

The Role of Legal Metrology in Modern Weighing Inspection Systems

Product Details:
Place of Origin: CHINA
Model Number: Modern Weighing Inspection Systems
Payment & Shipping Terms:
Minimum Order Quantity: 1 set
Price: Negotiation
Packaging Details: Caron box
Delivery Time: 10-30days
Supply Ability: 2000 set per month
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Detailed Product Description
Product: The Role Of Legal Metrology In Modern Weighing Inspection Systems Capacity Range: 1g-150kg
Verification Scale Interval (e): 0.1g-10g Number Of Scale Intervals (n): 3,000-10,000
Repeatability: ≤1.0e Temperature Range: 0°C To 40°C
Humidity Range: 15% To 85% RH Vibration Resistance: ≤0.2g RMS
NTEP Class: III OIML Approval: Y(b)
MID Compliance: Class III Measurement Canada: S.8
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The Role of Legal Metrology in Modern Weighing Inspection Systems
Introduction to Legal Metrology in Industrial Weighing
Legal metrology forms the foundation of trustworthy weighing inspection systems in modern manufacturing and trade environments. As global supply chains become more complex and regulatory requirements more stringent, the integration of legal metrology principles into weighing systems has evolved from simple compliance to a strategic quality assurance imperative.
Core Principles of Legal Metrology in Weighing
1. Metrological Traceability
  • Definition: Unbroken chain of calibrations to national/international standards
  • Implementation:
    • NIST (USA), PTB (Germany), or NIM (China) traceable certification
    • ISO/IEC 17025 accredited calibration procedures
    • Documentation of measurement uncertainty budgets
Industry-Specific Implementations
Pharmaceutical Manufacturing
  • Critical Parameters:
    • USP <41> compliance for balances
    • 21 CFR Part 11 electronic records
    • Measurement uncertainty ≤0.1% of tolerance
  • Validation Protocol:
    • 3-point calibration (min, nominal, max)
    • 99.7% confidence level (3σ)
Retail Weighing Systems
  • Key Requirements:
    • Automatic price calculation verification
    • Zero-tracking within ±0.25e
    • Mandatory sticker printing accuracy
  • Inspection Frequency:
    • Initial verification
    • Annual surveillance
    • 2-year recertification
Parameter Specifications
Capacity Range 1g-150kg
Verification Scale Interval (e) 0.1g-10g
Number of Scale Intervals (n) 3,000-10,000
Repeatability ≤1.0e
Temperature Range 0°C to 40°C
Humidity Range 15% to 85% RH
Vibration Resistance ≤0.2g RMS
NTEP Class III
OIML Approval Y(b)
MID Compliance Class III
Measurement Canada S.8
The Role of Legal Metrology in Modern Weighing Inspection Systems 0

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