ASTM E1273-88(2019)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:E1273 −88 (Reapproved 2019)
Standard Specification for
Color Coding of Reusable Laboratory Pipets
This standard is issued under the fixed designation E1273; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope E1157 Specification for Sampling and Testing of Reusable
Laboratory Glassware
1.1 This specification covers a system of color coding for
one-mark pipets for identification of nominal capacities, and
3. Significance and Use
forgraduatedpipetsforidentificationofnominalcapacitiesand
3.1 The purpose of this specification is to ensure that if a
units of sub-division.
color code is used on pipets, all manufacturers will use the
1.2 This specification applies to one-mark and graduated
same code; it is not intended as an encouragement of color
pipets of the nominal capacities listed in Table 1 and Table 2,
coding if this is not required.
respectively.
4. Color Properties
NOTE 1—Many pipets not covered by other ASTM standards are
included in Table 1 and Table 2, in order, firstly, to ensure uniformity of
4.1 Coding—The color coding used on one-mark pipets
color coding as far as possible for non-standard as well as standard pipets
shall be in accordance with Table 1, and graduated pipets shall
and, secondly, to reserve suitable codes for possible future standards for
be in accordance with Table 2.
other types of pipet.
4.2 Variations—Variations in the enamels used in the meth-
1.3 The values stated in SI units are to be regarded as
ods of application appropriate for pipets made from different
standard. No other units of measurement are included in this
types of glass inevitably result in minor variations of color, and
standard.
it is therefore not appropriate to specify closely the seven
1.4 This standard does not purport to address all of the
colors listed in the tables.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
5. Marking Requirements
priate safety, health, and environmental practices and deter-
5.1 The color code shall take the form of color bands
mine the applicability of regulatory limitations prior to use.
extending at least 150° around the circumference of the pipet
1.5 This international standard was developed in accor-
and situated not more than 70 mm from the top of the pipet and
dance with internationally recognized principles on standard-
not less than 20 mm above the nearest graduation line.
ization established in the Decision on Principles for the
5.2 For a code consisting of a single band of color, the band
Development of International Standards, Guides and Recom-
shall be 5 to 10 mm wide. For a code consisting of two bands
mendations issued by the World Trade Organization Technical
of color, each band shall be 3 to 5 mm wide and the two bands
Barriers to Trade (TBT) Committee.
shall be separated by a space of 2 to 3 mm. Color bands do not
2. Referenced Documents
have to be continuous but may be broken as long as they cover
40 % of the circumference of the pipet.
2.1 ASTM Standards:
NOTE 2—Pipets calibrated to deliver by blowing out the last drop shall
be identified by a wide band or two narrow bands permanently marke
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