Introduction

Dimensional Laboratory is dedicated for length measurement standards and related services. Our mandate is to establish National Length Standards of the country. Length is one of the seven base quantities of the International System of Units (SI) defined by the General Conference of Weight and Measures (CGPM). We are responsible for disseminating the definition of the metre and its practice as the National Authority beginning from the SI unit system to the public in Sri Lanka.

Gauge Block Comparator	Monochromatic Light Unit	Granite Surface Table
Gauge Block Set
Line measure

Responsibilities

• Establishment and maintenance of National Length Standards
• Maintenance of international measurement traceability for length measurement standards through foreign National Metrology Institutes
• Maintenance of National Length Standards traceable to the international system of units (SI)
• Dissemination of measurement traceability of length to the local industry
• Participation in inter-laboratory comparisons (ILC) related to length measurement
• Providing calibration services for length and dimensional measurement standards / measuring instruments to the local industry
• Organizing training programmes on dimensional metrology

Measurement standards and instruments established in the Dimensional Laboratory

• He-Ne laser with interferometer for length measurement
• Gauge blocks - Grade K - 0.5 mm to 100 mm
  • Tungsten Carbide
  • Steel
• Gauge blocks - Grade 00 - 0.5 mm to 100 mm
  • Tungsten Carbide
  • Ceramic
• Gauge blocks - Grade 0 - 0.5 mm to 500 mm
  • Steel
• Gauge blocks - Grade 1 - 0.5 mm to 100 mm
  • Steel
• Tape Calibrator - 2000 mm
• Gauge block comparator - 600 mm
• Reference line standards - 100 mm, 200 mm
• Optical flats 45 mm, 60 mm
• Optical parallels 12 mm series

Calibration Services

Calibration Fee