Rice Moisture

Moisture Content (MC) indicates the amount of water content in paddy or rice.  National Metrology Institute Malaysia has developed the  capability for calibration and verification of rice moisture meter.

rm1 rm2
Moisture Meter (Capacitance Type) Moisture Meter (Resistance Type)

Measurement Range

Rice: 12 % to 16 % MC
Paddy: 9 % to 30 %

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Gas Measurement

Gas Group in Chemical Metrology Section is responsible in ensuring gas analysis and gas measurement in the country is traceable to gas reference materials.

Gas Calibration

Gas Calibration Laboratory provides calibration of gas analyzers and gas detectors.  Multi-component gas mixtures are used to calibrate various types of these device.

   Commonly Monitored Gases   

     Measurement Range    

 

    Vehicle Emission Device    

    Measurement Standards    

Carbon Monoxide

Zero to 100 ppm

 

Carbon Monoxide

Zero to 4.5 %

Methane

Zero to 50 %LEL

 

Propane

Zero to 2000 ppm

Hydrogen Sulfide

Zero to 100 ppm

     

Oxygen

Zero to 21%

     

Calibration capability for gas detector

 

Calibration capability for vehicle emission devices 

Water Content in Gas Mixture

Gas Group in Chemical Metrology Section, NMIM is also capable of measuring low water content in gas mixtures. 

Component

Gas Samples

Range

Water @ Moisture

Almost all

(Contact us for further details)

0 to 1000 ppm

Water @ moisture

Oxygen, Hydrogen, Helium, Nitrogen, Air

0 to 10000 ppb

gm1Gas Analysis

Gas Analysis Laboratory is equipped with Gas Chromatograph with various type of  detectors; for example GC-FID, GC-TCD, GC-SCD, GC-ECD, GC-MS and GC-PDHID, which is an ideal tool to analyse gas samples and enabling our end users to determine the amount of different gaseous in a gas mixture.

 

Elemental Measurement

em1Elemental Analysis using

Energy Dispersive X-ray Fluorescence (EDXRF)

 

X-ray fluorescence (XRF) spectrometry provides an accurate and high precision quantitative for determination of ‘total’

‘total’ inorganic elements in solid samples such as soils, sediments, mining ores, dusts, consumer products (including paint, plastics, pharmaceuticals, cosmetics, electronic components and toys), metals and alloys (including jewellery). 

 

em2    

NUMBER OF ELEMENT

Trend of elemental analysis techniques

   

NMIM offers a comprehensive suite of analysis from Sodium (Na) to Uranium (U) with     sensitivity from <1 ppm up to 100 % by utilization of EDXRF.

      

em3Purity Assessment of Precious  Metal

EDXRF is an alternative method for analysis of precious metals.  It is a nondestructive     technique and therefore used for applications where there is a need to maintain the  integrity of a sample

  

em4Analysis of Hazardous Substances and Products for WEEE/RoHS Compliance by EDXRF

EDXRF has emerged as the primary method for screening products for Restriction of Hazardous Substances and Waste Electrical and Electronic Equipment (RoHS/WEEE) compliance. 

Structure Elucidation

hpos1STRUCTURE ELUCIDATION OF ORGANIC SUBSTANCE USING NMR SPECTROSCOPY

The chemical structure of an organic compound can be determined by NMR spectroscopy. Different atoms within a molecule resonate at different frequencies at a given field strength. The observation of the resonance frequencies of a molecule allows us discover structural information about the molecule. The structural elucidation based on intensive 1D and 2D NMR techniques.

     1 Dimensional Experiment

 2 Dimensional Experiment

Proton, 1H
All Carbon CPD, 13C
DEPT 45, All protonated Carbon
DEPT 90, Carbon 3°
DEPT 135, Carbon 1° and 3° up, 2° down
   •COSY, 1H - 1H correlation
   •HMQC,13C - 1H correlation
   •HMBC, 1H - 13C - 13C correlation

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