Quality & Certifications

Systematic quality management, measurement traceability and international standards support the reliability and consistency of every measurement product.

Standardized ProcessesControlled quality management
Traceable CalibrationTraceable measurement references
Business VerificationConfidence in global sourcing

Quality Policy

SJ Gauge applies quality management at every stage, from incoming materials and inspection to calibration, testing and delivery. Standardized processes, measurement traceability and data management help us continuously improve product reliability and consistency.

01

Reliable Measurement

Controlled measurement and calibration procedures help reduce measurement deviations and maintain consistent product performance.

02

Process Management

We establish standardized procedures for incoming inspection, calibration, durability testing and equipment management.

03

Measurement Traceability

Key reference equipment is calibrated by accredited external laboratories to maintain measurement traceability.

04

Continual Improvement

Calibration records, quality data, nonconformity analysis and risk management support continual improvement of our quality system.

Quality Management Process

Each stage has defined inspection, testing and recordkeeping requirements. Quality is built into a controlled workflow throughout the process, extending beyond final inspection.

Incoming Inspection

Materials, components and appearance are checked against specifications, and nonconformities are identified before further processing.

Dimensional & Functional Inspection

Required dimensions and performance are checked against drawings, specifications and functional requirements.

Leak & Performance Testing

Leak, pressure resistance or performance tests are carried out according to product and application requirements.

Calibration & Traceability

Measurements are compared against controlled reference standards, with the required calibration and traceability records maintained.

Final Quality Check

Appearance, specifications, indications and required documents are checked against order and inspection requirements.

Records & Delivery

Inspection and shipping records are compiled, and products are packed and identified before delivery to the customer.

International Standards & Quality Management

SJ Gauge develops its quality and measurement management processes with reference to relevant international standards covering quality management, pressure and temperature measurement, dimensional tolerances, sampling inspection and measurement traceability.

Quality Management

ISO 9001Quality management systems
ISO 10012Measurement management systems

Pressure Measurement

EN 837-1Bourdon tube pressure gauges
EN 837-3Diaphragm and capsule pressure gauges

Temperature Measurement

EN 13190Dial thermometers
IEC 60751Industrial platinum resistance thermometers
IEC 60584Thermocouples
ASTM E220Calibration of thermocouples by comparison

Inspection & Manufacturing

ISO 2859Sampling procedures for inspection
ISO 2768General dimensional tolerances
Standards statement: These standards may serve as references for quality processes and specific products or projects. Their inclusion does not mean that SJ Gauge holds all of the listed management system certifications or that every product is individually certified to these standards. ISO/IEC 17025 is cited here in relation to accredited external calibration and measurement traceability.

Certificates & Documents

First page of the weights and measures business license issued by BSMI, Ministry of Economic Affairs

Weights and Measures Business License

Issued by the Bureau of Standards, Metrology and Inspection (BSMI), Ministry of Economic Affairs, authorizing the import of weights and measures instruments.

First page of the factory registration letter issued by the New Taipei City Economic Development Department

New Taipei City Factory Registration

Factory registration approved by the New Taipei City Government Economic Development Department, providing a reference for verification of the manufacturing site and business operations.

First page of the importer and exporter registration record from the International Trade Administration, Ministry of Economic Affairs

Importer and Exporter Registration

Business registration information from the International Trade Administration, Ministry of Economic Affairs, for international buyers to verify the company name, address and import/export registration.

SJ Gauge D&B D-U-N-S business verification

D&B D-U-N-S® Business Verification

Business verification for international buyers and partners to check the company’s identity and business information.

SJ Gauge TÜV Rheinland supplier verification

TÜV Rheinland / Taiwantrade Supplier Verification

Third-party supplier verification. The available public information does not specify a product certification scope.

SJ Gauge New Taipei City Industrial Association membership certificate

New Taipei City Industrial Association Membership Certificate

Membership in the New Taipei City Industrial Association reflects participation in the local manufacturing community and industry exchange. It is not a product certification.

SJ Trademark Registration Certificate

SJ Trademark Registration Certificate

Documents the SJ brand trademark and registration details for customer and partner reference.

Need Quality Documents or Product Certification Information?

Contact the SJ Gauge team if your project requires product specifications, test reports, certification information or other technical documents.