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 Calibration services
     
 

 The calibration services provided by the metrology laboratories of QSAE are in the following measurement fields.


Dimensional measurement
Mass measurement
Volume measurement
Density measurement
Pressure measurement
Force measurement
Temperature measurement
Electrical measurement
Frequency measurement


Dimensional measurement

 

Item No
Measured quantity or type of measuring instrument
Range
1
Gauge blocks
0.5 to 100 mm
2
Micrometers
0 to 100 mm
3
Vernier calipers
0 to 300 mm
4
Dial gauges
0 to 40 mm
5
Rules
0 to 1000 mm
6
Glass polygon
0 to 360 degree
7
Special dimensional measurement services
To be agreed

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Permanent Laboratory

Mass measurement

 

Measured quantity / Calibration item Range Measurement conditions / procedure Best measurement capability 1)  Remarks 
Conventional Mass  1 mg, 2 mg, 5 mg 

Only weights with a certificate confirming the conformity with the requirements of OIML R 111:2004 can be calibrated.

0,006 mg 

OIML Recommendation R111,

class F1 

10 mg  0,008 mg 
20 mg  0,010 mg 
50 mg  0,012 mg 
100 mg  0,016 mg 
200 mg  0,020 mg 
500 mg  0,025 mg 
1 g  0,03 mg 
2 g  0,04 mg 
5 g  0,05 mg 
10 g  0,06 mg 
20 g  0,08 mg 
50 g  0,10 mg 
100 g  0,16 mg 
200 g  0,3 mg 
500 g  0,8 mg 
1 kg  1,6 mg 
2 kg  3,0 mg 
5 kg  8,0 mg 
10 kg  16 mg 

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Volume measurement

 

Item No. Measured quantity or type of measuring instrument Range
1 Pipettes and burettes All
2 Measuring cylinders and flasks All
3 Density bottles All
4 Flow/bulk meters All
5 Storage tanks Up to 100 000 L
6 Road tankers All
7 Special volume measurement services To be agreed

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Density measurement

Item No. Measured quantity or type of measuring instrument Range
1 Hydrometers 600 kg/m3 to 2000 kg/m3
2 Special density measurement services To be agreed

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Pressure measurement

Item No. Measured quantity or type of measuring instrument Range
1 Pressure balances Up to 60 MPa
2 Pressure gauges Up to 60 MPa
3 Barometers 800 mbar to 1070 mbar
4 Special pressure measurement services To be agreed

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Force measurement

Item No. Measured quantity or type of measuring instrument Range
1 Tensile testing machines Up to 500 kN
2 Compressive testing machines Up to 500 ton
3 Load rings Up to 500 kN
4 Special force measurements services To be agreed

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Permanent Laboratory

Temperature measurement

Temperature Resistance thermometers -40 °C

 

to  30 °C  Comparison with a standard resistance thermometer  20 mK  Alcohol bath 
> 30 °C  to  80 °C  30 mK  Water bath 
> 80 °C  to  200 °C  100 mK  Oil bath 
> 200 °C  to  660 °C  600 mK  Fluidized bath 
Thermocouples, noble metal 0 °C to  200 °C  Comparison with resistance thermometer  0,5 K  Liquid bath 
> 200 °C  to  600 °C  0,7 K  Fluidized bath 
> 600 °C  to 900 °C  Comparison with thermocouple  1,1 K   
> 900 °C  to 1200 °C  1,5 K  Furnace 
Thermocouples, base metal 0 °C  to 200 °C  Comparison with thermocouple  1,0 K  Furnace 
> 200 °C  to 600 °C  1,0 K 
> 600 °C  to 900 °C  1,5 K 
> 900 °C  to 1200 °C  2,0 K 
Liquid in glass thermometers -40 °C  to 30 °C  Comparison with a standard resistance thermometer  25 mK  Alcohol bath 
> 30 °C  to 80 °C  30 mK  Water bath 
> 80 °C  to 200 °C  100 mK  Oil bath 
>200 °C  to 360 °C  600 mK  Fluidized bath 
Direct reading electrical thermometers -40 °C  to 30 °C  Comparison with a standard resistance thermometer  20 mK  Alcohol bath 
> 30 °C  to 80 °C  30 mK  Water bath 
> 80 °C  to 200 °C  100 mK  Oil bath 
> 200 °C  to 660 °C  600 mK  Fluidized bath 
Mechanical (dial) thermometers -40 °C  to 80 °C  Comparison with a standard resistance thermometer  30 mK  Alcohol or Water Bath 
> 80 °C  to 200 °C  100 mK  Oil Bath 
>80 °C   to 400 °C  600 mK  Fluidized bath 

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Electrical measurement

Item No. Measured quantity or type of measuring instrument Range
1 DC Voltage Up to 1100 V
2 DC Current Up to 20 A
3 AC Voltage Up to 1000 V (10 Hz to 100 kHz)
4 AC Current Up to 20 A (0 kHz - 5 kHz)
5 Resistance 0.001 to 1 M
6 Electrical energy

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Frequency measurement

Item No.
Measured quantity or type of measuring instrument
Range
1
Rubidium frequency standard
5 MHz
2
Crystal oscillator
5 MHz
3
HF Synthesizer
0.1 MHz - 1019 MHz
4
LF Synthesizer
0 MHz - 2 MHz
5
Universal counter/timer
0 MHz - 250 MHz

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   Address - Tel: (251-11)6 46 05 25, Fax: (251-11)6 46 08 80, E-mail: qsae@ethionet.et, POBox: 2310, Addis Ababa.                   Last updated: 2007-08-22