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Thailand: Emissions standards

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New Gasoline Engine Vehicles

Standard No.LevelRef. StandardEnforced
TIS.1085-19951ECE R 15-04--
TIS.1120-19922ECE R 83-B30 Mar 1995
TIS.1280-19953ECE R 83-01(B)24 Mar 1996
TIS.1365-1996493/59/EEC1 Jan 1997
TIS.1440-1997594/12/EC1 Jan 1999
TIS.1870-1999696/69/EC25 Aug 2001
TIS--7Directive 98/69/EC(A)
RM≤1305kg
RM>1305kg

1 Jan 2003*
1 Jan 2004*
TIS--8Directive 98/69/EC(B)under discussion

* proposed to National Environment Board

Source: Suksod, "Emission Standard for Motor Vehicles in Thailand"

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New Light Duty Diesel Engine Vehicles

Standard No.LevelRef. StandardEnforced
TIS.1140-19931ECE R 83-C29 Jan 1995
TIS.1285-19952ECE R 83-01 App.C23 Feb 1996
TIS.1370-1996393/59/EEC1 Jan 1997
TIS.1435-1997494/12/EC for DI Diesel1 Jan 1999
30 Sep 2001
TIS.1875-1999596/69/EC25 Aug 2001
TIS--6Directive 98/69/EC(A)
RM≤1305kg
RM>1305kg

1 Jan 2003*
1 Jan 2004*
TIS--7Directive 98/69/EC(B)under discussion

* proposed to National Environment Board

Source: Suksod, "Emission Standard for Motor Vehicles in Thailand"

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Heavy Duty Diesel Engine Vehicles

Standard No.LevelRef. StandardEnforced
TIS.1180(1)-19951ECE R 49-01--
TIS.1290-19952EURO 112 May 1998
TIS.1295-19983EURO 223 May 2000

* proposed to National Environment Board

Source: Suksod, "Emission Standard for Motor Vehicles in Thailand"

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In-Use Vehicles

Vehicle
type
EmissionStandardMeasuring
system
Method
Dieselblack smoke50%
45%
filter system
opacity system
Measure while parking the car at no load by quickly accelerating the engine to max. rpm
40%
35%
filter system
opacity system
Measure while car runs steady on the roller at 60% of max. rpm
noise100dBAsound level meter as std. of International Electrotechnical Commission (IEC)Measure while parking the car at no load by accelerating the engine to max. rpm.
Gasoline
registered before 1 Nov 93CO
HC
4.5%
600ppm
NDIR System
(Non-Dispersive Infrared)
Measure while parking the car at idle and no load.
registered after 1 Nov 93CO
HC
1.5%
200ppm
all gasoline vehiclesnoise100dBAsound level meter as std. IEC Measure while parking the car at no load by accelerating the engine to 3/4 of max. rpm.

Source: Suksod, "Emission Standard for Motor Vehicles in Thailand"

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New Motorcycles

 
Standard No.LevelRef. StandardEnforced
TIS.1105-19921ECE R 40-0010 Aug 1993
TIS.1185-19932ECE R 40-0115 Mar 1995
TIS.1360-19963CO≤13g/km
HC≤5g/km
1 Jul 1997
TIS.1650-19984CO≤4.5g/km
HC+NOx≤3g/km
white smoke 15%
evap. 2g/test for 150cc up
30 Jul 2001
TIS--5select A or B

A. evap.≤2g/test
CO≤3.5g/km
HC+NOx ≤2g/km

B. evap.>2 and ≤6g/test
CO≤3.5g/km
HC+NOx≤1.8g/km

A and B
  white smoke 15%
  ≤110cc
  All types

1 Jul 2003*
1 Jul 2004*

* National Environment Board resolution

Source: Suksod, "Emission Standard for Motor Vehicles in Thailand"

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In-use Motorcycles

  • CO shall not exceed 4.5%
  • HC shall not exceed 10,000ppm
  • White smoke shall not exceed 30% (2T only)
  • Noise shall not exceed 100dB(A)

Source: Thawanaphong, "Inspection & Maintenance for motorcycles"

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