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General Information:
Address: No.18,Bei San Huan
Dong Lu,Chaoyang
Dist,Beijing,P.R.China, 100013
ws@nim.ac.cn
Tel:+86-10-64525678
Mass and Related Quantities
No. |
Calibration or Measurement Service |
Measurand Level or Range |
Measurement Conditions/Independent Variable |
Expanded Uncertainty |
||||||||||
Class or Quantity |
Measurand(Quantity Instrument or Artifact) |
Instrument Type or Method |
Minimum value |
Maximum value |
Units |
Parameter |
Specifications |
Value |
Units |
Coverage Factor |
Level of confidence |
Is the expanded uncertainty a relative one? |
Matrix uncertainty |
|
Mass Standards |
|
|||||||||||||
1 |
Mass |
Mass standard: national secondary standard |
Derict comparison in air |
1 |
1 |
kg |
Air temperature air humidity |
(20±0.2)℃, (50±10)%RH |
0.03 |
mg |
2 |
95% |
No |
|
2 |
Mass |
Mass standard |
Subdivision weighing in air |
20 |
10 |
kg |
Air temperature air humidity |
(20±0.2)℃ (50±10)%RH |
0.8 to 0.4 |
mg |
2 |
95% |
No |
|
3 |
Mass |
Mass standard |
Subdivision weighing in air |
10 |
1 |
kg |
Air temperature air humidity |
(20±0.2)℃ (50±10)%RH |
0.4 to 0.035 |
mg |
2 |
95% |
No |
|
4 |
Mass |
Mass standard |
Subdivision weighing in air |
1000 |
200 |
g |
Air temperature air humidity |
(20±0.2)℃ (50±10)%RH |
0.035 to 0.010 |
mg |
2 |
95% |
No |
|
5 |
Mass |
Mass standard |
Subdivision weighing in air |
200 |
20 |
g |
Air temperature air humidity |
(20±0.2)℃ (50±10)%RH |
0.010 to 0.005 |
mg |
2 |
95% |
No |
|
6 |
Mass |
Mass standard |
Subdivision weighing in air |
20 |
2 |
g |
Air temperature air humidity |
(20±0.2)℃ (50±10)%RH |
0.005 to 0.0015 |
mg |
2 |
95% |
No |
|
7 |
Mass |
Mass standard |
Subdivision weighing in air |
2 |
1 |
g |
Air temperature air humidity |
(20±0.2)℃ (50±10)%RH |
0.0015 to 0.0010 |
mg |
2 |
95% |
No |
|
8 |
Mass |
Mass standard |
Subdivision weighing in air |
1000 |
100 |
mg |
Air temperature air humidity |
(20±0.2)℃ (50±10)%RH |
0.0010 to 0.0008 |
mg |
2 |
95% |
No |
|
9 |
Mass |
Mass standard |
Subdivision weighing in air |
100 |
1 |
mg |
Air temperature air humidity |
(20±0.2)℃ (50±10)%RH |
0.0008 to 0.0004 |
mg |
2 |
95% |
No |
|
10 |
Mass |
Mass standard |
Direct comparison in air |
100 |
2000 |
kg |
Air temperature air humidity |
(20±2)℃ <70%RH |
1.3 to 3.2 |
g |
2 |
95% |
No |
|
Force |
|
|||||||||||||
1 |
Force: tension |
Force measuring device:F |
Direct comparison |
1 |
10 |
MN |
|
|
0.1F,F in MN |
kN |
2 |
95% |
No |
|
2 |
Force: compression |
Force measuring device:F |
Direct comparison |
1 |
20 |
MN |
|
|
0.1F,F in MN |
kN |
2 |
95% |
No |
|
3 |
Force: tension and compression |
Force measuring device:F |
Direct comparison |
0.01 |
1000 |
kN |
|
|
0.02F,F in kN |
N |
2 |
95% |
No |
|
4 |
Torque |
Torque measuring device:T |
Direct comparison |
0.5 |
5000 |
Nm |
|
|
1E-04T,T in Nm |
Nm |
2 |
95% |
No |
|
5 |
Torque |
Torque measuring device:T |
Direct comparison |
1 |
100 |
Nm |
|
|
2E-05T,T in Nm |
Nm |
2 |
95% |
No |
|
Hardness |
|
|||||||||||||
1 |
Hardness |
Hardness block |
Rockwell |
20 |
88 |
HRA |
Preliminary |
98.07N |
0.3 |
HRA |
2 |
95% |
No |
|
|
|
|
|
|
Total force |
588.4N |
|
|
|
|
|
|
||
2 |
Hardness |
Hardness block |
Rockwell |
20 |
100 |
HRB |
Preliminary |
98.07N |
0.4 |
HRB |
2 |
95% |
No |
|
|
|
|
|
|
Total force |
980.7N |
|
|
|
|
|
|
||
3 |
Hardness |
Hardness block |
Rockwell |
20 |
70 |
HRC |
Preliminary |
98.07N |
0.3 |
HRC |
2 |
95% |
No |
|
|
|
|
|
|
Total force |
1471N |
|
|
|
|
|
|
||
4 |
Hardness |
Hardness block |
Rockwell |
40 |
77 |
HRD |
Preliminary |
98.07N |
0.3 to 0.4 |
HRD |
2 |
95% |
No |
|
|
|
|
|
|
Total force |
980.7N |
|
|
|
|
|
|
||
5 |
Hardness |
Hardness block |
Rockwell |
70 |
100 |
HRE |
Preliminary |
98.07N |
0.3 to 0.6 |
HRE |
2 |
95% |
No |
|
|
|
|
|
|
Total force |
980.7N |
|
|
|
|
|
|
||
6 |
Hardness |
Hardness block |
Rockwell |
60 |
100 |
HRF |
Preliminary |
98.07N |
0.3 to 0.6 |
HRF |
2 |
95% |
No |
|
|
|
|
|
|
Total force |
588.4N |
|
|
|
|
|
|
||
7 |
Hardness |
Hardness block |
Rockwell |
30 |
94 |
HRG |
Preliminary |
98.07N |
0.3 to 0.6 |
HRG |
2 |
95% |
No |
|
|
|
|
|
|
Total force |
1471N |
|
|
|
|
|
|
||
8 |
Hardness |
Hardness block |
Rockwell |
80 |
100 |
HRH |
Preliminary |
98.07N |
0.3 to 0.6 |
HRH |
2 |
95% |
No |
|
|
|
|
|
|
Total force |
588.4N |
|
|
|
|
|
|
||
9 |
Hardness |
Hardness block |
Rockwell |
40 |
100 |
HRK |
Preliminary |
98.07N |
0.3 to 0.6 |
HRK |
2 |
95% |
No |
|
|
|
|
|
|
Total force |
1471N |
|
|
|
|
|
|
||
10 |
Hardness |
Hardness block |
Rockwell |
70 |
91 |
HR15N(T) |
Preliminary |
29.42N |
0.4 |
HRN(T) |
2 |
95% |
No |
|
|
|
|
|
|
Total force |
147.1N |
|
|
|
|
|
|
||
11 |
Hardness |
Hardness block |
Rockwell |
42 |
80 |
HR30N(T) |
Preliminary |
29.42N |
0.4 |
HRN(T) |
2 |
95% |
No |
|
|
|
|
|
|
Total force |
294.2N |
|
|
|
|
|
|
||
12 |
Hardness |
Hardness block |
Rockwell |
20 |
70 |
HR45N(T) |
Preliminary |
29.42N |
0.4 |
HRN(T) |
2 |
95% |
No |
|
|
|
|
|
|
Total force |
441.3N |
|
|
|
|
|
|
||
13 |
Hardness |
Hardness block |
Brinell |
80 |
650 |
HBW |
Force |
98.07N to 29421N |
0.8 to 1.0 |
% |
2 |
95% |
Yes |
|
14 |
Hardness |
Hardness block |
Vickers |
40 |
1000 |
HV |
Force |
0.49N to |
0.9 to 4.0 |
% |
2 |
95% |
Yes |
|
15 |
Hardness |
Hardness block |
Shore Hardness |
105 |
5 |
HSD |
Mass of impact body |
36.2g |
0.5 to 0.7 |
HSD |
2 |
95% |
No |
|
|
Volume & Density |
|
|
|||||||||||
1 |
Density of liquid |
Standard volume vessel |
Gravimetric method |
0.01 |
2,000 |
l |
Temperature |
15 °C to 25 °C |
5E-04 to 100 |
ml |
2 |
95% |
No |
|
2 |
Density of liquid |
Hydrometer |
Hydrostatic weighing |
500 |
650 |
kg/m3 |
Temperature |
15 °C to 25 °C |
0.2 |
kg/m3 |
2 |
95% |
No |
|
3 |
Density of liquid |
Hydrometer |
Direct comparison |
650 |
2,000 |
kg/m3 |
Temperature |
15 °C to 25 °C |
0.08 |
kg/m3 |
2 |
95% |
No |
|
4 |
Density of liquid |
Hydrometer |
Hydrostatic weighing |
2,000 |
3,000 |
kg/m3 |
Temperature |
15 °C to 25 °C |
0.2 |
kg/m3 |
2 |
95% |
No |
|