Objective of Mass Laboratory

Objectives of the mass laboratory is to maintain & disseminate the national standards of mass. Mass laboratory provides calibration services to facilitate Trade, Industry, health and environmental protection. The Quality of calibration result are assured by participation of Inter - laboratory comparisons.

Standards

1. National prototype of kilogram.


2. NO.s Reference weight of kilogram

• OIML class E1 weight sets
• OIML class E2 weight sets
• OIML class F1 weight sets
• OIML class F2 weight sets
• OIML class M weight sets

Existing Facilities of Mass Laboratory

Existing instrument and their range are shown in table

Calibration Services

Mass Laboratory provides calibration services to following weight & scales

Balances

• Class I
• Class II
• Class III & IIII
• Paper Scales
• Hanging Scales
• Crane Scales
• Weigh Bridge
• Button puner machine
• Hopper Scale

Content will be updated soon

Content will be updated soon

Time & Frequency Laboratory

1. Time and Frequency Standard system : Cs Primary frequency standard, Rubidium Atomic standard, Time interval counter with rubidium oscillator


2. Time dissemination system : NTP time server stratum 1 and 2, web server for time display


3. Time transfer system : GNSS receiver, Choke ring antenna


4. Time and Frequency calibration system : Signal Generator, Digital Storage Oscilloscope, Timer and Stopwatch calibration

Current Activities of Time and Frequency Laboratory

1. Maintaining and disseminating Sri Lanka Standard Time (Regulation : Sri Lanka Standard Time Regulation 2011)


2. Maintaining National standard for frequency


3. Calibration services to industry and calibration  testing and medical laboratories (stopwatches, timers, rpm meters, centrifuges, function generators, oscilloscopes, other timing and time interval measuring instrument used in government used in government authorities and industry)