TECHNICAL SCALE CALIBRATION – ACCURATE, RELIABLE, COMPLIANT WITH STANDARDS
The Industrial Equipment Safety Inspection Joint Stock Company (SIE) provides professional technical scale calibration services, strictly complying with TCVN, ISO, and OIML standards, as well as regulations from the Ministry of Labour, Invalids and Social Affairs. With a team of experienced specialists, the company ensures accurate measurement results that meet both quality and legal requirements.
1. When is technical scale calibration required?
- After extended use, when measurement results show signs of deviation.
- After moving the scale to a new location or changing the working environment.
- After the scale has experienced an impact or technical fault.
- When the periodic calibration is due, per quality management requirements or as requested by the relevant authority.

2. Calibration equipment and conditions
- Standard reference weights of an appropriate accuracy class.
- Supporting instruments: thermometer and hygrometer to monitor environmental conditions.
- Standard conditions: temperature (23 ± 2)°C, humidity 40–70% RH, a stable environment free from vibration or strong wind.
3. Professional calibration process
- Preparation – cleaning the scale, visual inspection, ensuring the environment meets standard conditions.
- Initial check – powering on, checking "zero" and basic functions.
- Calibration – measuring against standard reference weights, checking repeatability, eccentricity, and error near maximum load.
- Adjustment (if needed) – adjusting the scale and re-checking to confirm it meets standard.
- Completion – preparing the report, and affixing the calibration seal.
4. Standards applied
- TCVN: national standard for scale calibration.
- ISO, OIML: international standards for measurement and inspection.
- Manufacturer regulations and requirements from the Ministry of Labour, Invalids and Social Affairs.
5. Commitments from SIE
- Officially designated and licensed by the Ministry of Labour, Invalids and Social Affairs.
- Team of calibration specialists with many years of experience.
- On-site service, accurate and transparent process.
- Reasonable cost, clear quotes, fast turnaround.
Let us help you maintain the accuracy of your technical scales, ensuring every measurement is reliable and fully compliant with legal requirements.