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    Central Laboratory of Legal Metrology (CLLM)

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    Legal Metrology Bhavan, Kakkanad, Ernakulam, Kerala, 682030, India

    0484-2428771

    directorcllm@yahoo.com

    Other Branches:

    N/A

    Also Listed In
    Discipline
    Related Labs
    Scope of Accrediation
    Calibration Scope | Calibration
    Instruments
    S.No. Instrument Name Range (to & from ) CMC (to & from )
    1 Weighing Balance Readability d=0.001 mg♣ 0 g To 20 g 0.5 mg
    2 Weighing Balance Readability: 0.01 mg♣ 20` g To 50 g 0.05 mg
    3 Weighing Balance Readability: 0.1 mg♣ 0.2 kg To 10 kg 11.5 mg
    4 Weighing Balance Readability d= 1 mg♣ 10 kg To 20 kg 28 mg
    5 Weight$ 1 mg To 10 mg 0.003 mg
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    NOTE: All Symbols and their description

    * : Meaurement Capability is expressed as an uncertainty (±) at a Confidence probability of 95 %

    $ : Only in Permanent Laboratory

    ♣ : Only for Site Calibration

    # : The laboratory is also capable for site calibration however, the uncertainty at site depends on the prevailing actual environmental conditions and master equipment used

    Φ : Laboratory can also Caibrate instruments/devices of coarser resolution/ least count within the accredited range using same reference standard/ master equipment under the scope of accreditation



    Accrediation valid upto
    27-05-2020

    About Central Laboratory of Legal Metrology (CLLM)

    The Central Laboratory of Legal Metrology at Ernakulam, Kerala, was first started in the year 1992. The introduction of metric systems of weights and measurements in Kerala in the year 1958, led to the development of CLLM in Ernakulam, which works under the revenue department of Kerala. The Central Laboratory of Legal Metrology performs many mechanical calibration tests on products related to weights, length measurements, weighing instruments (Mechanical and Electronics), Automatic Rail Weighbridges, fuel dispensers for motor vehicles, LPG dispenser for motor vehicles, taxi meters, vehicle tanks, storage tanks, and flow meters; thus, ensuring their metrological accuracy. The verification and re-verification of these products at regular intervals ranging from 1 year to 5 years helps the consumers in getting the exact quantity of the products for which they have paid money.