Norm

ASTM E237 - 02(2012) en

Standard Specification for Laboratory Glass Microvolumetric Vessels (Volumetric Flasks and Centrifuge Tubes)

45,11 54,58 Incl BTW

Over deze norm

Status Definitief
Aantal pagina's 4
Gepubliceerd op 01-11-2012
Taal Engels

1.1 This specification covers volumetric flasks and four types of centrifuge tubes, widely used in microchemistry.

Note 1Specifications for several items listed below were developed by the Committee on Microchemical Apparatus, Division of Analytical Chemistry, American Chemical Society.2

1.2 Product 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


Details

ICS-code 71.040.20
Engelse titel Standard Specification for Laboratory Glass Microvolumetric Vessels (Volumetric Flasks and Centrifuge Tubes)
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