Master Calibration Co Ltd

Site

Bangkok – Thailand Laboratory

Accreditation No.

14355

Site No.

14348

Date of Accreditation

09 Mar 2000

Address

547 Soi Ratchadanivat, Kwaeng Samsennok, Khet, Huaykwang, BANGKOK 10310
0
Thailand

mastercalibration.com

Contact

Mr Thanadet Yuvawanitchakorn P: 66 22742978

Availability

Services available to external clients

Scope of Accreditation

Print scopes

Withdrawn 30 Jun 2022

Voluntary

Bangkok – Thailand Laboratory

ISO/IEC 17025 (2005)

Calibration

  • The uncertainty of measurement is reported as an expanded uncertainty having a level of confidence of 95% unless stated otherwise
Withdrawn
Service Product Determinant Technique Procedure Limitations
Temperature metrology - Ancillary temperature measuring equipmentincluding on site calibrations Multi-channel thermocouple data recorders Volt to temperature conversion Direct measurement by electrical input

By the methods of -

In-hose MWi-T-012 based on EA-10/11

Temperature indicators(without sensor) and temperature simulators

by electrical simulation

Capability

Including on-site calibrations.

With Calibration and Measurement Capability of -

0.1 ºC
Temperature metrology - Humidity measuring equipment Relative humidity sensors Relative humidity (RH); Temperature Comparison with a reference standard

Relative humidity and temperature

Over a range of 30% RH to 90% RH and a temperature of 10 ºC to 40 ºC

Capability

With Calibration and Measurement Capability of -

1% RH and 0.3 ºC of reading over a range of 30% RH to 90% RH and a temperature of 10 ºC to 40 ºC


 
Temperature metrology - Temperature measuring equipment Liquid in glass (LIG) thermometers Temperature Measurement against reference standard

Total and partial immersion types 

From -30 ºC to 125 ºC

Capability

With Calibration and Measurement Capability of -

0.15 ºC from -30 ºC to -15 ºC
 0.08 ºC from -15 ºC to 125 ºC
Surface probes Temperature Measurement against reference standard

from 30 °C to 600 °C

Capability

With Calibration and Measurement Capability of - 

1.50 °C from 30 °C to 50 °C

3.00 °C from 50 °C to 600 °C
Temperature metrology - Temperature measuring equipmentincluding on site calibrations Base metal thermocouples Temperature Measurement against reference standard

From - 30 ºC to 600 ºC

Capability

Including on-site calibrations.

With Calibration and Measurement Capability of -

0.2 + |0.1%| ºC from -30 ºC to 140 ºC
0.4 + |0.2%| ºC from 140 ºC to 400 ºC
2.3 ºC from 400 ºC to 600 ºC
Bimetallic systems; Digital temperature measuring systems Temperature Measurement against reference standard

Analog temperature indicator (with sensor)
From -30 ºC to 600 ºC
Digital temperature indicator (with sensor and as an instrument only)

From -30 ºC to 600 ºC

Capability

Including on-site calibrations.

With Calibration and Measurement Capability of -

Analog temperature indicator (with sensor)

 0.6 ºC from -30 ºC to 140 ºC
 0.8 ºC from 140 ºC to 400 ºC
 2.3 ºC from 400 ºC to 600 ºC

Digital temperature indicator (with sensor and as an instrument only)

0.15 ºC from -30 ºC to -15 ºC

0.12 ºC from -15 ºC to 140 ºC

0.5 ºC from 140 ºC to 400 ºC

2.3 ºC from 400 ºC to 600 ºC
3.35 ºC from 600 ºC to 1200 ºC
Metallic resistance thermometers Temperature Measurement against reference standard

Resistance Temperature Detector (RTD) industrial types

From - 30 ºC to 400 ºC

Capability

Including on-site calibrations.

With Calibration and Measurement Capability of -

 0.15 ºC from -30 ºC to -15 ºC
 0.1 ºC from -15 ºC to 140 ºC
 0.5 ºC from 140 ºC to 400 ºC
Temperature metrology - Temperature standards and reference equipment Dry block calibrators Temperature Direct measurement using a reference standard

From -30 ºC to 1200 ºC

Capability

With Calibration and Measurement Capability of -

0.25 ºC from -30 ºC to 200 ºC
 0.5 ºC from 200 ºC to 400 ºC
 3.0 °C from 400 °C to 1000 °C
 4.0 °C from 1000 °C to 1200 °C

 
Temperature metrology - Verification of controlled enclosuresincluding on site calibrations Autoclaves and sterilising ovens Temperature; Temporal uniformity Direct temperature measurement

By the methods of -

in-house method WMI-T-016, based on BS 2646: Part 5: 1993 sections 3.1.1 to 3.1.4

Unloading test only

Capability

With Calibration and Measurement capability of -

0.3 ºC from 100 ºC to 125 ºC
Baths Temperature; Temporal uniformity Direct temperature measurement

Liquid temperature bath (controllers)

By the methods of -

in-house method MWI-T-011

Including on-site calibrations of Baths

Baths

From ambient to 100 ºC

Liquid temperature bath (controllers)

From -30 ºC to 400 ºC

Capability

With Calibration and Measurement Capability of -

Baths

0.18 °C from ambient to 100 °C
 Liquid temperature bath (controllers)
  0.1 ºC from -30 ºC to 400 ºC
Environmental chambers - Humidity Humidity By temperature and humidity measurement

 From 30% RH to 90% RH
 At temperatures from 30 °C to 40 °C

Capability

With Calibration and Measurement Capability of -

1.8% RH from 30% RH to 90% RH and temperatures from 30 °C to 40 °C
Freezers Temporal uniformity Direct temperature measurement

Industrial freezers

From -30 ºC to 0 ºC

Capability

With Calibration and Measurement Capability of -

1.0 ºC from -30 ºC to 0 ºC
Furnaces; Incubators; Ovens Temperature; Temporal uniformity Direct temperature measurement

Ovens

From ambient to 300 ºC

Incubators

From 0 ºC to 75 ºC

Furnaces
From 300 °C to 1200 °C
Heating Blocks

From 35 ºC to 100 ºC

Capability

With Calibration and Measurement Capability of -

Ovens

 0.3 ºC from ambient to 125 ºC
 0.8 ºC from 125 ºC to 300 ºC
 Furnaces- Controller Indicator Comparison
 3.5 °C from 300 °C to 1200 °C

Incubators

0.3 ºC from 0 ºC to 75 ºC

Heating Blocks

0.15 ºC from 35 ºC to 100 ºC

ISO/IEC 17025 (2017)

Calibration

  • The uncertainty of measurement is reported as an expanded uncertainty having a level of confidence of 95% unless stated otherwise
Withdrawn
Service Product Determinant Technique Procedure Limitations
Dimensional metrology - Engineering equipment and precision instruments Bevel protractors Angle (arc) Comparison with a reference standard

For compliance with BS 1685

Blade lengths up to 450 mm

Capability

With Calibration and Measurement Capability of -

1.2 minutes of arc
Gauge block comparators Length measurements Comparison with a reference standard

To the requirements of - EAL G21

Capability

With Calibration and Measurement Capability of -

0.03 + 0.002D where D does not exceed 10μm
Height setting micrometers Length measurements Comparison with a reference standard

For compliance with ISO 7863

Including riser blocks

Capability

With Calibration and Measurement Capability of -

(0.5 + L/350) μm where L is the length in mm
Length measuring machines Length measurements Comparison with a reference standard

Single axis vertical length measuring instruments with measuring ranges up to 600 mm

Single axis horizontal length measuring machines with measuring ranges up to 500 mm

Capability

With Calibration and Measurement Capability of -

Single axis vertical length measuring instruments

(2 + L/1000) μm for calibration of measuring scales
 where L is the indicated displacement from zero in mm


 Single axis horizontal length measuring machines 

 (0.7 + L/350) μm where L is the displacement in mm
Micrometer heads Length measurements Comparison with a reference standard

For compliance with AS 2328

Types 1, 2 and 3

Capability

With Calibration and Measurement Capability of -

0.5 μm
Micrometer setting gauges Length measurements Comparison with a reference standard

From up to 25 mm to 400 mm

Capability

With Calibration and Measurement Capability of -

0.5 μm for linear measurements up to 25 mm
0.8 μm for linear measurements above 25 mm up to 100 mm
1.8 μm for linear measurements above 100 mm up to 250 mm
3 μm for linear measurements above 250 mm up to 400 mm
Precision spirit levels Angle (arc) Comparison with a reference standard

For compliance with JIS B 7511

Type I levels with sensitivities of 4 seconds of arc or greater

Capability

With Calibration and Measurement Capability of -

0.5 seconds of arc
Sine bars and sine tables Angle (arc) Comparison with a reference standard

For compliance with JIS B 7523

Capability

With Calibration and Measurement Capability of -

3 seconds of arc for angle setting measurements;
2 μm for linear measurements
Straight edges Length measurements Comparison with a reference standard

For compliance with As 1003

Cast iron and stone straightedges with widths 20 mm and above

From 250 mm to 5 m

Steel straightedges

From 250 mm to 1000 mm

Capability

With Calibration and Measurement Capability of -

Cast iron and stone straightedges

(2.5 L) μm where L is the length in metres

Steel straightedges

(4.8 L) μm where L is the length in metres
Dimensional metrology - Engineering equipment and precision instrumentsincluding on site calibrations Bore gauges; Electronic height and depth gauges; Feeler gauges; Vernier height and depth gauges Length measurements Comparison with a reference standard

Bore gauges for compliance with  JIS B 7515

Height gauges for compliance with  AS 1643

Feeler gauges for compliance with  AS 1655



 Bore Gauges up to 200 mm
Height gauges  up to 600 mm
Depth gauges up to 500 mm

Capability

With Calibration and Measurement Capability of -

Bore gauges

(1.5 + L/100) μm where L is the diameter in mm up to 200 mm

On-site calibration of bore gauges up to 100 mm

2.9 μm up to 18 mm;

3.0 μm above 18 mm up to 50 mm;

3.4 μm above 50 mm up to 100 mm

Height gauges up to 600 mm

(10 + L/1000) μm where L is the indicated height in mm

Depth gauges up to 500 mm

 (6.5 + L/200) μm where L is the indicated depth in mm

Feeler gauges

1 μm for determination of thickness
Clinometers; Electronic calipers; Thickness gauges Angle (arc); Length measurements Direct measurement against a reference standard; To be determined

Thickness measuring equipment with electronic and dial gauges up to 30 mm capacity

Inside/outside digital and dial type calliper gauges up to 200 mm

Clinometers with a maximum resolution of 30 minutes of arc

Capability

With Calibration and Measurement Capability of -

Thickness measuring instruments

1.3 μm

On-site calibration of thickness measuring instrument with electronic and dial gauges up to 30 mm capacity

1.3 μm up to 5 mm

5.9 μm above 5 mm and up to 30 mm

Inside/outside digital and dial type calliper gauges

5 μm up to 100 mm
10 μm above 100 mm and up to 200 mm

On-site calibration of inside/Outside digital and dial type calliper gauge up to 80 mm

5 μm up to 5 mm

5.9 μm above 5 mm and up to 30 mm

6.0 μm above 30 mm and up to 50 mm

 6.8 μm above 50 mm and up to 80 mm

Clinometers

35 minutes of arc
Depth and height micrometers; External micrometers; Internal micrometers Length measurements; Parallelism Direct measurement against a reference standard

External micrometers

For compliance with AS 2102

Internal micrometers

For compliance with AS 2101

Depth micrometers

For compliance with JIS B 6468

External and internal micrometers

Up to 500 mm

Depth micrometers

Up to 300 mm

Capability

With Calibration and Measurement Capability of -

External micrometers

1.3 μm for linear measurements up to 25 mm
2.6 μm for linear measurements above 25 mm up to 150 mm
(1.3+0.01L) μm where L is the length in mm for linear measurements above
150 mm up to 500 mm
1 μm for parallelism up to 100 mm
2.5 μm for parallelism above 100 mm

On-site calibration of external micrometers up to 150 mm

2.3 μm for linear measurements up to 25 mm;
 5.6 μm for linear measurements above 25 mm up to 150 mm

1 μm for parallelism up to 100 mm;
 2.5 μm for parallelism above 100 mm

Internal micrometer

1.3 μm for linear measurements up to 25 mm
2 μm for linear measurements above 25 mm up to 100 mm
4 μm for linear measurements above 100 mm up to 250 mm
7 μm for linear measurements above 250 mm up to 500 mm 

Depth micrometers

(2 + L/250) μm where L is the indicated depth in mm
Dial gauges; Electronic length gauges Length measurements Comparison with a reference standard

Dial gauges for compliance with AS 2103

Linear and lever action electronic gauges to the requirements of JIS B 7536 

Up to 100 mm

Capability

With Calibration and Measurement Capability of -

Dial gauges, electronic indicators and test indicators

0.8 μm up to 100 mm

On-site calibration of electronics indicators, dial gauges and test indicators up to 20 mm.

With Calibration and Measurement Capability of - 1.6 μm

Linear and lever action electronic gauges

0.3 μm up to 10 mm
(0.2 + 0.006L)μm where L is the length in mm for linear measurements above 10 mm up to 100 mm

On-site calibration of Linear and lever action electronic gauges 

With Calibration and Measurement Capability of -

2.0 μm up to 10 mm
Electronic calipers; Vernier calipers Length measurements Direct measurement against a reference standard

For compliance with AS 1984

Electronic  callipers and digital calliper gauges (10 μm reading)

Up to 1000 mm

Capability

With Calibration and Measurement Capability of -

Electronic  callipers

13 μm for linear measurements up to 150 mm;
18 μm for linear measurements above 150 mm up to 300 mm;
23μm for linear measurements above 300 mm up to 600 mm;
30μm for linear measurements above 600 mm up to 1000 mm;
2.5 μm for form and geometry measurements

On-site calibration of Electronic and Vernier callipers Up to 300 mm

16 μm for linear measurements up to 150 mm;
 23 μm for linear measurements above 150 mm up to 300 mm;

2.5 μm for form and geometry measurements

Digital calliper gauges 

(12.5 + 0.006L) μm where L is the length in mm

On-site calibration of Digital Calliper Gauges (10 μm reading) up to 300 mm
16 μm for linear measurements up to 150 mm;
23 μm for linear measurements above 150 mm up to 300 mm;

2.5 μm for form and geometry measurements
Surface plates Flatness Direct measurement against a reference standard

For compliance with AS 1004

 from 150 x 200 mm to 4000 x 2000 mm

Capability

Including on-site calibrations for determination of departure from flatness

With Calibration and Measurement Capability of -

1.7 μm 150 mm x 200 mm

1.8 μm 200 mm x 250 mm

1.7 μm 250 mm x 250 mm

1.7 μm 300 mm x 250 mm

1.8 μm 450 mm x 300 mm

1.8 μm 600 mm x 450 mm

1.8 μm 750 mm x 500 mm

1.9 μm 900 mm x 600 mm

2.1 μm 1000 mm x 750 mm

2.2 μm 1500 mm x 1000 mm

2.1 μm 2000 mm x 1500 mm

10.4 μm 4000 mm x 2000 mm
Dimensional metrology - Length and angle standards Angle blocks Angle (arc) Comparison with a reference standard

Up to 60º 

Capability

With Calibration and Measurement Capability of -

3 in 10⁴or 12 seconds of arc (whichever is greater) up to 60º 
Dial gauge calibrators Length measurements Comparison with a reference standard

Capability

With Calibration and Measurement Capability of -

(0.35 + L/100) μm where L is the displacement in mm
Gauge blocks and accessories Length measurements Comparison with a reference standard

For compliance with AS 1457 grades 0, 1 and 2

Up to  100 mm

Capability

With Calibration and Measurement Capability of -

(0.08 + L/1000) μm where L is the gauge length in mm up to  100 mm
Dimensional metrology - Limit gauges and reference standards Depth gauges; Step gauges Length measurements Comparison with a reference standard

Step gauges, calliper check gauges, depth micrometer check gauges

Calibration in vertical attitude up to 600 mm

Capability

With Calibration and Measurement Capability of -

(1 + L/300) μm where L is the gauge length in mm
Parallel screw plug gauges Major diameter and simple pitch diameter Comparison with a reference standard

Including gauges for checking product thread

From 4 mm to 100 mm

Capability

With Calibration and Measurement Capability of -

3 μm for sizes from 4 mm to 50 mm;
4 μm for sizes above 50 mm up to 100 mm
Parallel screw ring gauges Minor diameter and simple pitch diameter Comparison with a reference standard

From 4 mm to 100 mm

Capability

With Calibration and Measurement Capability of -

4 μm for sizes from 4 mm to 50 mm;
5 μm for sizes above 50 mm up to 100 mm
Plain gap gauges Length measurements Comparison with a reference standard

From 3 mm to 150 mm

Capability

With Calibration and Measurement Capability of -

3 μm for sizes from 3 mm to 75 mm;
5 μm for sizes above 75 mm up to 150 mm
Plain plug gauges; Plain ring gauges Diameter Comparison with a reference standard

Plug gauges

Up to 50 mm and from above 50 mm to 150 mm

Ring gauges 

From 3 mm to 150 mm

Capability

With Calibration and Measurement Capability of -

Plain plug gauges

2 μm for sizes up to 50 mm;
3 μm for sizes above 50 mm up to 150 mm

Plain ring gauges

2 μm for sizes from 3 mm to 75 mm;
3 μm for sizes above 75 mm up to 150 mm 
Profile gauges Profile; Radius Direct measurement against a reference standard

Chamfer gauges

Up to 50 mm

Radius gauges

1 mm to 50 mm

Capability

With Calibration and Measure Capability of -

Chamfer gauges

7.5 μm

Radius gauges

6.3 μm
Screw pitch reference standards Simple pitch diameter only Comparison with a reference standard

0.2 mm to 8 mm

Capability

With Calibration and Measurement Capability of -

8 μm

The only data displayed is that deemed relevant and necessary for the clear description of the activities and services covered by the scope of accreditation.

Grey text appearing in a SoA is additional freetext providing further refinement or information on the data in the preceding line entry.