ASTM E1272-95(1999)
(Specification)Standard Specification for Laboratory Glass Graduated Cylinders
Standard Specification for Laboratory Glass Graduated Cylinders
SCOPE
1.1 This specification covers requirements for glass graduated cylinders for precision and general purpose grades suitable for laboratory purposes.
1.1.1 Class A -Each cylinder of precision grade shall be marked with the letter "A" to signify compliance with applicable construction and accuracy requirements. Cylinders may be marked with an identification number (serial number) at the option of the manufacturer.
1.1.2 Class B -General purpose cylinders are of the same basic design as Class A cylinders. However, volumetric tolerances for Class B cylinders shall be within twice the specified range allowed for Class A cylinders. These cylinders need not be marked with their class designation.
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NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
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Designation: E 1272 – 95 (Reapproved 1999)
Standard Specification for Laboratory Glass
Graduated Cylinders
This standard is issued under the fixed designation E 1272; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 4. General Requirements
1.1 This specification covers requirements for glass gradu- 4.1 Style I cylinders shall be calibrated either “to deliver’’
ated cylinders for precision and general purpose grades suitable or“ to contain.’’ Style II and Style III cylinders shall be
for laboratory purposes. calibrated“ to contain.’’ The cylinders shall be calibrated at
1.1.1 Class A—Each cylinder of precision grade shall be 20°C and the volumetric tolerances shall be in accordance with
marked with the letter “A’’ to signify compliance with appli- Table 1. (See Practice E 542 for calibration definitions and
cable construction and accuracy requirements. Cylinders may procedures.)
be marked with an identification number (serial number) at the 4.1.1 Cylinders shall be of borosilicate glass conforming to
option of the manufacturer. the requirements for Type I, Class A of Specification E 438.
1.1.2 Class B—General purpose cylinders are of the same 4.2 Shape—Cylinders shall be of one piece consisting in
basic design as Class A cylinders. However, volumetric toler- general of a top, a graduated portion of uniform diameter and
ances for Class B cylinders shall be within twice the specified a base. The shape shall permit complete emptying and thor-
range allowed for Class A cylinders. These cylinders need not ough cleaning. The pour-out of Style I, in sizes of 1000 mL and
be marked with their class designation. below, shall be located in a vertical plane bisecting within 65°
one of the corners on the hexagonal base. For sizes 2000 mL
2. Referenced Documents
and above, the pour-out shall bisect within 65° the center of
2.1 ASTM Standards:
one of the flat section or one of the corners of the base. The
E 438 Specification for Glasses in Laboratory Apparatus pour-out of Style III shall not protrude beyond the glass
E 542 Practice for Calibration of Volumetric Ware
reinforcing bead with construction such that, upon falling, the
E 675 Specification for Interchangeable Taper-Ground bead shall strike a flat surface before the pour-out or lip.
Stopcocks and Stoppers
4.2.1 Base—The base shall be hexagonal and the construc-
E 694 Specification for Volumetric Ware tion shall be such that the empty cylinder (without stopper for
E 920 Specification for Commercially Packaged Laboratory
Style II), in capacities above 10 mL, shall stand on a surface
Apparatus inclined 15° with the horizontal and, in capacities of 10 mL or
E 921 Specification for Export Packaged Laboratory Appa-
less, shall stand on a surface inclined 10° with the horizontal.
ratus 4.3 Dimensions—The dimensions shall be as shown in
E 1133 Practice for Performance Testing of Packaged Labo-
Table 1 The glass stoppers of Style II shall conform to
ratory Apparatus for United States Government Procure-
Specification E 675.
ments 4.4 Graduation Markings—Graduation markings shall be
E 1157 Specification for the Sampling and Testing of Reus-
sharply defined lines of uniform width not more than 0.4 mm.
able Laboratory Glassware Graduation markings shall be perpendicular to the vertical axis
of the cylinder and parallel to each other. Adjacent graduation
3. Classification
markings shall be spaced at least 1 mm from center to center.
3.1 Cylinders shall be in the following styles:
Markings shall be applied by one of the following methods:
3.1.1 Style I— Beaded lip with pour spout,
etched and filled with a permanent pigment; etched through a
3.1.2 Style II—Ground standard taper () neck, or
vertical colored band fired into the glass; or by application of
3.1.3 Style III—Beaded lip with pour spout and reinforcing
a stain which is fired into the glass without etching; or by
bead near top.
application of enamel fired into the glass without etching; or by
application of an enamel which is fired onto a vertical colored
etched band which has been fired into the glass. Style III shall
This specification is under the jurisdiction of ASTM Committee E-41 on
have graduation markings etched through a vertical red colored
Laboratory Apparatus and is the direct responsibility of Subcommittee E41.01 on
band fired into the glass. The value of all main graduations
Apparatus.
Current edition approved Feb.
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