ASTM International - ASTM E969-02(2012)

Standard Specification for Glass Volumetric (Transfer) Pipets

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Organization:	ASTM International
Publication Date:	1 November 2012
Status:	inactive
Page Count:	2
ICS Code (Laboratory ware and related apparatus):	71.040.20

scope:

1.1 This specification covers volumetric pipets of two classes. Class A, Precision Pipet and Class B, General Purpose.

Note 1-Specifications for micropipets are given in Specification E193.

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 Requirements for Volumetric (Transfer) Pipet

Nominal Capacity, mL	Capacity Tolerance, mL		Length of Delivery Tube, mm		Inside Diameter at Capacity Mark, mm		Maximum Distance Between Bulb and Graduation Mark, mm	Minimum Outflow Time, s ^A		Color-Coding Band
Nominal Capacity, mL	Class A	Class B	min	max	min	max	Maximum Distance Between Bulb and Graduation Mark, mm	Class A	Class B	Color-Coding Band
0.5	±0.006	±0.012	100	140	1.3	4	60	5	3	black (2)
1	±0.006	±0.012	100	140	2	4	60	8	3	blue
2	±0.006	±0.012	120	150	2	4	60	8	3	orange
3	±0.01	±0.02	130	170	2	4	60	8	5	black
4	±0.01	±0.02	130	170	2	4	60	8	5	red (2)
5	±0.01	±0.02	130	170	2	4	60	8	8	white
6	±0.01	±0.03	150	190	2	4	60	10	8	orange (2)
7	±0.01	±0.03	150	190	2	4	60	10	8	green (2)
8	±0.02	±0.04	150	190	2	4	60	10	8	blue
9	±0.02	±0.04	150	190	2	4	60	10	8	black
10	±0.02	±0.04	150	190	2	4	70	15	8	red
15	±0.03	±0.06	180	220	3.5	5.5	70	25	10	green
20	±0.03	±0.06	230	260	3.5	5.5	70	25	10	yellow
25	±0.03	±0.06	230	260	3.5	5.5	70	25	15	blue
30	±0.03	...	230	260	3.5	5.5	70	25	...	black
40	±0.05	...	230	260	4	6	70	25	...	white
50	±0.05	±0.10	230	260	4	6	70	25	15	red
100	±0.08	±0.16	230	260	5	7	80	30	20	yellow

^A Maximum outflow time for A or B shall be 60 s.

abstract:

This specification covers volumetric pipets of two classes. Class A, Precision Pipet and Class B, General Purpose. Borosilicate glass for pipets shall conform to the glass requirements specified.... View More