TB 9-6685-322-50
Table 4. Temperature Accuracy - Continued
Standard thermometer
Acceptable test instrument
indication (C)
Test Instrument
deviations (without
Identifying number
Indication
(rejection tolerance)
corrections or adjustments)
(column 1)
(column 2)
(column 3)
(column 4)
F
C
F
C
Min
Max
---
-30.5
---
-27.2
7913470 and
-20
0.7
8032312 ( 3F)
1.7
-1.7
32
28.3
25.0
80
39.5
36.1
100
1
---
1.1
---
-1.1
32
7910596 and
0.5
11.1
8.9
50
Taylor, Model
1328 ( 2F) and
27.7
25.6
80
44.5
42.2
110
Psychon Model 566-2
---
1.1
---
-1.1
MIS-10320
32
0.7
( 2F)
22.2
20.0
70
44.5
42.2
110
1.5
---
3
-3
7907119
--- 0
( 3C)
103
97
100
203
197
200
253
247
250
---
126.5
123.5
ASTM 42C
- - - 125
( 1.5C)
151.5
148.5
150
0.5
201.5
198.5
200
251.5
248.5
250
---
-35.5
---
-33.3
7909077
30
0.5
( 2F)
1.1
-1.1
32
27.7
25.6
80
38.9
36.7
100
---
3
-3
Fisher Scientific
---
0
53
47
Model 14-985C
50
1.0
103
97
100
143
137
140
0.32
0.152
N/A
N/A
-30
7915890
-22
0.32
0.152
0
32
50
122
0.452
0.252
100
212
0.652
0.352
150
302
0.802
0.452
200
392
1.02
0.552
0.52
---
---
---
---
-20
Telethermometer
0.52
0
Model 42SF or
100
SC
0.52
120
1.02
140
1.52
Other precision thermometers not listed in this table
Other thermometers
may be calibrated using this procedure to the
within the
accuracy of the TI plus the accuracy of the standard
temperature
thermometer. The rejection tolerance should be
range
based on the tolerance listed in this table for a
thermometer in the same temperature range, or the
tolerance listed in NBS Monograph 150 for the
specified range.
1
Thermometers are part of hygrometer sling psychrometer set.
2
If out of tolerance, perform adjustments in accordance with manufacturer's manual (R).
7
