1.1This specification covers volumetric flasks and four types of centrifuge tubes, widely used in microchemistry.
Note 1–Specifications for several items listed below were developed by the Committee on Microchemical Apparatus, Division of Analytical Chemistry, American Chemical Society.2
1.2Product with a stated capacity not listed in this standard may be specified Class A tolerance when product conforms to the tolerance range of the next smaller volumetric standard product listed in Table 1.
TABLE 1 Volumetric Flask (see Fig. 1)
|
Style |
Capacity, mL |
Class A/ Tolerance, ± mL |
A, ID, max/mm |
B, ID, ref/mm |
C, max/mm |
D, max/mm |
Stopper No. |
|
I |
1 |
0.010 |
5.3 |
8.25 |
70 |
100 |
8 |
|
II |
1 |
0.010 |
5.3 |
– |
95 |
125 |
8 |
|
I |
2 |
0.015 |
6.4 |
10.75 |
70 |
100 |
8 |
|
I |
3 |
0.015 |
6.4 |
13.50 |
72 |
100 |
8 |
|
I |
4 |
0.020 |
7.3 |
14.00 |
75 |
100 |
8 |
|
I |
5 |
0.020 |
7.3 |
15.75 |
75 |
100 |
8 |
|
I |
10 |
0.020 |
8.25 |
18.00 |
110 |
135 |
9 |
|
I |
25 |
0.030 |
8.7 |
26.00 |
140 |
165 |
9 |
