ASTM E1157-87(2011)
(Specification)Standard Specification for Sampling and Testing of Reusable Laboratory Glassware
Standard Specification for Sampling and Testing of Reusable Laboratory Glassware
ABSTRACT
This specification covers sampling and testing of laboratory glassware items for use until they are no longer considered functional for the intended purpose, and does not include disposable (single use) items. Four types of reusable laboratory glassware are covered, namely: blown and pressed glassware, nongraduated; blown and pressed glassware, graduated; tubular glassware, nongraduated; and tubular glassware, graduated. The product shall be designed to meet the specified test performance requirements. Alternate testing methods, inspection levels, and sample sizes may be implemented. Sampling shall be conducted in accordance with the specified inspection and examination levels and acceptance quality levels for major defects, minor defects, and dimensional examination. Where applicable, distilled water and reagent grade chemicals shall be used throughout the tests. Inspection shall be conducted in accordance with applicable section and individual specifications. The basic testing criteria for the following tests are detailed: (1) leakage test, (2) permanency of marking by alkali and acid tests, (3) capacity fill test, (4) autoclaving, (5) pour test, and (6) centrifugal test.
SCOPE
1.1 This specification covers laboratory items for use until they are no longer considered functional for the intended purpose. It is written specifically for reusable items and is not to be confused with disposable (single use) items that are described in other standards.
1.2 This specification covers the sampling inspection and basic testing criteria for the following four types of laboratory glassware: blown and pressed glassware, nongraduated; blown and pressed glassware, graduated; tubular glassware, nongraduated; and tubular glassware, graduated.
1.3 This specification is intended to be used in conjunction with a standard specification for a specific laboratory glassware product.
The following precautionary statement pertains only to the test method portion, Section 6, of this specification. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:E1157 −87(Reapproved 2011)
Standard Specification for
Sampling and Testing of Reusable Laboratory Glassware
This standard is issued under the fixed designation E1157; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 2.2 Military Standard:
MIL-STD-105 Sampling Procedures and Tables for Inspec-
1.1 This specification covers laboratory items for use until
tion by Attributes
they are no longer considered functional for the intended
purpose. It is written specifically for reusable items and is not
3. Terminology
to be confused with disposable (single use) items that are
3.1 Definitions of Terms Specific to This Standard:
described in other standards.
3.1.1 lot—items of the same respective type, class, style,
1.2 This specification covers the sampling inspection and
and size offered for acceptance at one time that have been
basic testing criteria for the following four types of laboratory
produced by one manufacturer under essentially the same
glassware: blown and pressed glassware, nongraduated;
manufacturing conditions.
blown and pressed glassware, graduated; tubular glassware,
3.1.2 inspection—as both “examination” (such as visual
nongraduated; and tubular glassware, graduated.
investigation without the use of special laboratory appliances
1.3 This specification is intended to be used in conjunction
or procedure) and “testing” (determination by technical means
withastandardspecificationforaspecificlaboratoryglassware
of physical and chemical properties) of the item.
product.
4. Performance Requirements
1.4 The following precautionary statement pertains only to
the test method portion, Section 6, of this specification. This
4.1 The product shall be designed to meet test performance
standard does not purport to address all of the safety concerns,
requirements specified in Section 6. Testing of individual lots
if any, associated with its use. It is the responsibility of the user
may be obviated when process controls are employed and
of this standard to establish appropriate safety and health
monitored. Deviation from or changes to established manufac-
practices and determine the applicability of regulatory limita-
turing procedures that could adversely affect performance of a
tions prior to use. product shall be cause for performing applicable testing
requirements on a specific lot to verify quality acceptance.
2. Referenced Documents
4.2 Alternate testing methods, inspection levels, and sample
sizes may also be implemented.Any deviation shall not negate
2.1 ASTM Standards:
responsibility of product from complying with the applicable
C162 Terminology of Glass and Glass Products
test performance standards.
E542 Practice for Calibration of Laboratory Volumetric
Apparatus
4.3 Unless otherwise specified in the contract or purchase
E671 Specification for Maximum Permissible Thermal Re-
order, the supplier shall be responsible for the performance of
sidual Stress in Annealed Glass Laboratory Apparatus
all designated inspection requirements. Except as otherwise
specifiedinthecontractorpurchaseorder,thesuppliermayuse
his own or any other facilities suitable for the performance of
the inspection requirements. The purchaser has the right to
This specification is under the jurisdiction of ASTM Committee E41 on
Laboratory Apparatus and is the direct responsibility of Subcommittee E41.01 on
perform any of the inspections set forth in the specification
Apparatus.
where such inspections are deemed necessary to ensure sup-
Current edition approved Dec. 1, 2011. Published December 2011. Originally
plies conform to prescribed requirements.
approved in 1987. Last previous edition approved in 2006 as E1157 – 87 (2006)4.
DOI: 10.1520/E1157-87R11.
As defined in Terminology C162.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
Standards volume information, refer to the standard’s Document Summary page on Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://
the ASTM website. www.dodssp.daps.mil.
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E1157−87(2011)
TABLE 1 Examination
6. Test Methods
Visual Inspection Acceptance
6.1 Leakage Test—The item shall be filled to nominal
Examination Level Quality Level
capacity with distilled water at 25 6 5°C, normally capped or
Major defects 2 2.5
stoppered and laid on side for 60 s. No leakage shall result.
Minor defects 2 4.0
Dimensional Examination S-3 2.5
6.2 Permanency of Marking:
6.2.1 Alkali Test—A representative piece of each sample
shall be completely immersed in 1 N sodium hydroxide
TABLE 2 BLOWN OR PRESSED ITEMS (GRADUATED AND
solution at room temperature, covered, boiled for 30 min, and
NONGRADUATED)
allowed to stand in the alkali for an additional hour. The piece
Classification of Defects (Nongraduated)
shall then be removed, thoroughly rinsed with distilled water,
Major:
101—Not free of cracks, unhealed chips, breaks or sharp edges. and dried by rubbing vigorously with a cloth. No appreciable
102—Not free of checks and open blisters.
change in decoration appearance shall result. Loss of gloss
103—Required components missing.
shall not be considered a defect.
104—Not free of protruding stones.
105—Not free of stones (buried) or knots that exceed dimensions in Table 9. 6.2.2 Acid Test—Arepresentative piece of each sample shall
106—Required glass joints, rubber stoppers, stopcock plugs or closures not as
be completely immersed in concentrated sulfuric acid at room
specified.
temperature and allowed to stand 1 h. The piece shall then be
107—Not within stress limits as defined in Specification E671.
Minor: removed, thoroughly rinsed with distilled water, and dried by
201—Identification marking not complete, correct, legible, and permanent, (see
rubbing vigorously with a cloth. No appreciable change in
6.2).
decoration appearance shall result. Loss of gloss shall not be
202—Not free of blisters (buried) that exceed dimensions in Table 4, Table 8,
and Table 5. considered a defect.
203—Not free of wiry cord or deformation that affects intended use or
6.3 Capacity:
serviceability.
204—Not free of scale that exceeds dimensions in Table 8.
6.3.1 Blown or Pressed Items (Nongraduated) and Tubular
Glassware (Nongraduated)—Avolume of distilled water equal
to the capacity specified for the size shall be added to the item.
TABLE 3 Classification of Defects (Graduated)
The water level shall be between the shoulder and the neck of
Major:
the item or at the approximate point indicated in the specific
101—Not free of cracks, unhealed chips, breaks or sharp edges.
standard for the item. The test shall be conducted at room
102—Not free of checks and open blisters.
temperature (25 6 5°C).
103—Required components missing.
104—Not free of protruding stones.
6.3.2 Blown or Pressed Items (Graduated) and Tubular
105—Not free of stones (buried) or knots which exceed dimensions in Table 7.
Glassware (Graduated)—Accuracy shall be as defined in
106—Required glass joints, rubber stoppers, stopcock plugs or closures not as
specified. appropriate item standard. Testing shall be conducted in
107—Capacity or graduation lines of wrong width, missing or not straight.
accordance with procedures in Practice E542.
108—Not free of skips in graduation lines that exceed ⁄4 of the line length.
109—On Class “A” items, the “A” or serial number (where specified) is missing. 6.4 Autoclaving—Items with respective cap or cover se-
110—Not free of blemishes in meniscus reading area that interfere with setting
cured shall be subject to three consecutive autoclaving cycles
the meniscus.
at 15 psi for 30 min. Capped items shall be removed after each
111—Not within stress limits as defined in Specification E671.
Minor: autoclaving cycle and allowed to cool for 30 min before
201—Identification marking not complete, correct, legible or permanent (See
repeatingtheheatingcycle.Autoclaveditemswithcaporcover
A
6.2).
shall be subjected to leakage test. Temperature shall be 121°C.
202—Not free of skips in the graduation lines less than ⁄4 of the line length.
203—Not free of blisters (buried) which exceed dimensions in Table 4, Table 8,
6.5 Pour Test—Fill the item to normal capacity with dis-
and Table 5.
tilled water. Tilt at an angle of 45° and pour approximately one
204—Not free of wiry cord or deformation that affects intended use or
serviceability. fourth of the water from the item at such a rate that the water
205—Not free of scale that exceeds dimensions in Table 9.
flows in a continuous stream and falls freely from the spout.
A
Disregard minor smears, smudges or skips in letters or numbers that do not
Stream of water should not cling to the outside of the item and
destroy legibility.
flow off the bottom.
6.6 Centrifuge Test—The centrifuge may be any type or
model commercially available or normally employed in labo-
ratories and capable of speeds (RPM) recommended for the
5. Sampling and Inspection
item. Item sh
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