International Thermocouple Colour Codes Thermocouple
and Extension Grade Wires
|
![UK flag](images/flags/uk.gif) |
![German flag](images/flags/germany.gif) |
![Japan flag](images/flags/japan.gif) |
![French flag](images/flags/france.gif) |
|
ANSI
CODE |
International
IEC 584-3 |
International
IEC 584-3
Intrinsically Safe |
CZECH
BRITISH
to
BS 1843 |
NETHERLANDS
GERMAN
to DIN 43710 |
JAPANESE
to
JIS C
1610-1981 |
FRENCH
to
NFC 42-324 |
Comments
Environment -
Bare Wire |
J |
![K W K Plug](images/k_w_k.gif) |
![K W Bl Plug](images/k_w_bl.gif) |
![Y Bl K Plug](images/y_bl_k.gif) |
![R Bl Bl Plug](images/r_bl_bl.gif) |
![R W Y Plug](images/r_w_y.gif) |
![Y K K Plug](images/y_k_k.gif) |
Reducing, Vacuum, Inert.
Limited Use in Oxidising at High Temperatures Not Recommended
for Low Temperatures |
K |
![G W G Plug](images/g_w_g.gif) |
![G W Bl Plug](images/g_w_bl.gif) |
![B Bl R Plug](images/b_bl_r.gif) |
![R G G Plug](images/r_g_g.gif) |
![R W Bl Plug](images/r_w_bl.gif) |
![Y P Y Plug](images/y_p_y.gif) |
Clean
Oxidising and Inert. Limited Use in Vacuum or Reducing. Wide
Temperature Range. Most Popular Calibration |
V* |
![G W G Plug](images/g_w_g.gif) |
![G W Bl Plug](images/g_w_bl.gif) |
![W Bl R Plug](images/w_bl_r.gif) |
|
![R W Bl Plug](images/r_w_bl.gif) |
![Y B R Plug](images/y_b_r.gif) |
Alternative
to KX Type Extension Wire for Low Temperatures; Not Recommended
for General Use |
T |
![B W B Plug](images/b_w_b.gif) |
![B W Bl Plug](images/b_w_bl.gif) |
![W Bl Bl Plug](images/w_bl_bl.gif) |
![R B B Plug](images/r_b_b.gif) |
![R W B Plug](images/r_w_b.gif) |
![Y Bl Bl Plug](images/y_bl_bl.gif) |
Mild
Oxidising, Reducing Vacuum or Inert. Good Where Moisture is
Present, Low Temperature and Cryogenic Applications |
International
Thermocouple Colour Codes Thermocouple and Extension Grade Wires
|
![UK flag](images/flags/uk.gif) |
![German flag](images/flags/germany.gif) |
![Japan flag](images/flags/japan.gif) |
![French flag](images/flags/france.gif) |
|
ANSI
CODE |
International
IEC 584-3 |
International
IEC 584-3
Intrinsically Safe |
CZECH
BRITISH
to
BS 1843 |
NETHERLANDS
GERMAN
to DIN 43710 |
JAPANESE
to
JIS C
1610-1981 |
FRENCH
to
NFC 42-324 |
Comments
Environment -
Bare Wire |
E |
![P W P Plug](images/p_w_p.gif) |
![P W Bl Plug](images/p_w_bl.gif) |
![B Bl B Plug](images/b_bl_b.gif) |
![R K K Plug](images/r_k_k.gif) |
![R W P Plug](images/r_w_p.gif) |
![Y P P Plug](images/y_p_p.gif) |
Oxidising
or Inert. Limited Use in Vacuum or Reducing. Highest EMF Change
per Degree |
N |
![Pk W Pk Plug](images/pk_w_pk.gif) |
![Pk W Bl Plug](images/pk_w_bl.gif) |
![O Bl O Plug](images/o_bl_o.gif) |
No
Standard
Use American Colour Codes |
Alternative
To Type K
More Stable at High Temps |
R |
![O W O Plug](images/o_w_o.gif) |
![O W Bl Plug](images/o_w_bl.gif) |
![W Bl G Plug](images/w_bl_g.gif) |
![R W W Plug](images/r_w_w.gif) |
![R W K Plug](images/r_w_k.gif) |
![Y G G Plug](images/y_g_g.gif) |
Oxidising
or Inert. Do Not Insert in Metal Tubes. Beware of Contamination.
High Temperature |
S |
![O W O Plug](images/o_w_o.gif) |
![O W Bl Plug](images/o_w_bl.gif) |
![W Bl G Plug](images/w_bl_g.gif) |
![R W W Plug](images/r_w_w.gif) |
![R W K Plug](images/r_w_k.gif) |
![Y G G Plug](images/y_g_g.gif) |
Oxidising
or Inert. Do Not Insert in Metal Tubes. Beware of Contamination.
High Temperature |
International
Thermocouple Colour Codes Thermocouple and Extension Grade Wires
*Not Official
Symbol or Standard Extension Grade **ASTM Standard
E230-87, 1992 Annual Book of ASTM Standards
|
|
|
![UK flag](images/flags/uk.gif) |
![German flag](images/flags/germany.gif) |
![Japan flag](images/flags/japan.gif) |
![French flag](images/flags/france.gif) |
|
ANSI
CODE |
International
IEC 584-3 |
International
IEC 584-3
Intrinsically Safe |
CZECH
BRITISH
to
BS 1843 |
NETHERLANDS
GERMAN
to DIN 43710 |
JAPANESE
to
JIS C
1610-1981 |
FRENCH
to
NFC 42-324 |
Comments
Environment -
Bare Wire |
U* |
![O W O Plug](images/o_w_o.gif) |
![O W Bl Plug](images/o_w_bl.gif) |
![W Bl G Plug](images/w_bl_g.gif) |
![R W W Plug](images/r_w_w.gif) |
![R W K Plug](images/r_w_k.gif) |
![Y G G Plug](images/y_g_g.gif) |
Extension
Grade Connecting Wire for R & S Thermocouples; Also Known
as RX and SX Extension Wire |
B |
|
|
No
Standard
Use Copper Wire |
![R Gy Gy Plug](images/r_gy_gy.gif) |
![R Gy Gy Plug](images/r_gy_gy.gif) |
No
Standard
Use Copper Wire |
Oxidising
or Inert. Do Not Insert in Metal Tubes. Beware of Contamination.
High Temperature. Common Use in Glass Industry |
G*
(W) |
|
|
|
No
Standard
Use American Colour Codes |
Vacuum,
Inert, Hydrogen. Beware of Embrittlement. Not Practical Below
399°C (750°F). Not for Oxidising Atmosphere |
C*
(W5) |
|
|
|
No
Standard
Use American Colour Codes |
Vacuum,
Inert, Hydrogen. Beware of Embrittlement. Not Practical Below
399°C (750°F). Not for Oxidising Atmosphere |
D*
(W3) |
|
|
|
No
Standard
Use American Colour Codes |
Vacuum,
Inert, Hydrogen. Beware of Embrittlement. Not Practical Below
399°C (750°F). Not for Oxidising Atmosphere
| |
|