ASTM E1157-87(2006)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: E1157 – 87 (Reapproved 2006)
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.
TABLE 1 Examination
1. Scope
Visual Inspection Acceptance
1.1 This specification covers laboratory items for use until
Examination Level Quality Level
they are no longer considered functional for the intended
Major defects 2 2.5
purpose. It is written specifically for reusable items and is not
Minor defects 2 4.0
to be confused with disposable (single use) items that are
Dimensional Examination S-3 2.5
described in other standards.
1.2 This specification covers the sampling inspection and
basic testing criteria for the following four types of laboratory
MIL-STD-105 Sampling Procedures and Tables for Inspec-
glassware: blown and pressed glassware, nongraduated;
tion by Attributes
blown and pressed glassware, graduated; tubular glassware,
nongraduated; and tubular glassware, graduated.
3. Terminology
1.3 This specification is intended to be used in conjunction
3.1 Definitions of Terms Specific to This Standard:
withastandardspecificationforaspecificlaboratoryglassware
3.1.1 lot—items of the same respective type, class, style,
product.
and size offered for acceptance at one time that have been
1.4 The following precautionary statement pertains only to
produced by one manufacturer under essentially the same
the test method portion, Section 6, of this specification. This
manufacturing conditions.
standard does not purport to address all of the safety concerns,
3.1.2 inspection—as both “examination” (such as visual
if any, associated with its use. It is the responsibility of the user
investigation without the use of special laboratory appliances
of this standard to establish appropriate safety and health
or procedure) and “testing” (determination by technical means
practices and determine the applicability of regulatory limita-
of physical and chemical properties) of the item.
tions prior to use.
4. Performance Requirements
2. Referenced Documents
4.1 The product shall be designed to meet test performance
2.1 ASTM Standards:
requirements specified in Section 6. Testing of individual lots
C162 Terminology of Glass and Glass Products
may be obviated when process controls are employed and
E542 Practice for Calibration of Laboratory Volumetric
Apparatus
E671 Specification for Maximum Permissible Thermal Re- TABLE 2 BLOWN OR PRESSED ITEMS (GRADUATED AND
NONGRADUATED)
sidual Stress in Annealed Glass Laboratory Apparatus
Classification of Defects (Nongraduated)
2.2 Military Standard:
Major:
101—Not free of cracks, unhealed chips, breaks or sharp edges.
102—Not free of checks and open blisters.
103—Required components missing.
This specification is under the jurisdiction of ASTM Committee E41 on
104—Not free of protruding stones.
Laboratory Apparatus and is the direct responsibility of Subcommittee E41.01 on
105—Not free of stones (buried) or knots that exceed dimensions in Table 9.
Apparatus.
106—Required glass joints, rubber stoppers, stopcock plugs or closures not as
Current edition approved Nov. 1, 2006. Published December 2006. Originally
specified.
´1
approved in 1987. Last previous edition approved in 2001 as E1157 – 87 (2001) .
107—Not within stress limits as defined in Specification E671.
DOI: 10.1520/E1157-87R06.
Minor:
As defined in Terminology C162.
201—Identification marking not complete, correct, legible, and permanent, (see
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
6.2).
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
202—Not free of blisters (buried) that exceed dimensions in Table 4, Table 8,
Standards volume information, refer to the standard’s Document Summary page on
and Table 5.
the ASTM website.
203—Not free of wiry cord or deformation that affects intended use or
Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
serviceability.
Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:// 204—Not free of scale that exceeds dimensions in Table 8.
www.dodssp.daps.mil.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
E1157 – 87 (2006)
TABLE 3 Classification of Defects (Graduated)
6.2 Permanency of Marking:
Major: 6.2.1 Alkali Test—A representative piece of each sample
101—Not free of cracks, unhealed chips, breaks or sharp edges.
shall be completely immersed in 1 N sodium hydroxide
102—Not free of checks and open blisters.
solution at room temperature, covered, boiled for 30 min, and
103—Required components missing.
104—Not free of protruding stones. allowed to stand in the alkali for an additional hour. The piece
105—Not free of stones (buried) or knots which exceed dimensions in Table 7.
shall then be removed, thoroughly rinsed with distilled water,
106—Required glass joints, rubber stoppers, stopcock plugs or closures not as
and dried by rubbing vigorously with a cloth. No appreciable
specified.
107—Capacity or graduation lines of wrong width, missing or not straight.
change in decoration appearance shall result. Loss of gloss
108—Not free of skips in graduation lines that exceed ⁄4 of the line length.
shall not be considered a defect.
109—On Class “A” items, the “A” or serial number (where specified) is missing.
6.2.2 Acid Test—Arepresentativepieceofeachsampleshall
110—Not free of blemishes in meniscus reading area that interfere with setting
the meniscus.
be completely immersed in concentrated sulfuric acid at room
111—Not within stress limits as defined in Specification E671.
temperature and allowed to stand 1 h. The piece shall then be
Minor:
removed, thoroughly rinsed with distilled water, and dried by
201—Identification marking not complete, correct, legible or permanent (See
A
6.2).
rubbing vigorously with a cloth. No appreciable change in
202—Not free of skips in the graduation lines less than ⁄4 of the line length.
decoration appearance shall result. Loss of gloss shall not be
203—Not free of blisters (buried) which exceed dimensions in Table 4, Table 8,
considered a defect.
and Table 5.
204—Not free of wiry cord or deformation that affects intended use or
6.3 Capacity:
serviceability.
6.3.1 Blown or Pressed Items (Nongraduated) and Tubular
205—Not free of scale that exceeds dimensions in Table 9.
Glassware (Nongraduated)—Avolume of distilled water equal
A
Disregard minor smears, smudges or skips in letters or numbers that do not
to the capacity specified for the size shall be added to the item.
destroy legibility.
The water level shall be between the shoulder and the neck of
the item or at the approximate point indicated in the specific
monitored. Deviation from or changes to established manufac-
standard for the item. The test shall be conducted at room
turing procedures that could adversely affect performance of a
temperature (25 6 5°C).
product shall be cause for performing applicable testing
6.3.2 Blown or Pressed Items (Graduated) and Tubular
requirements on a specific lot to verify quality acceptance.
Glassware (Graduated)—Accuracy shall be as defined in
4.2 Alternate testing methods, inspection levels, and sample
appropriate item standard. Testing shall be conducted in
sizes may also be implemented.Any deviation shall not negate
accordance with procedures in Practice E542.
responsibility of product from complying with the applicable
6.4 Autoclaving—Items with respective cap or cover se-
test performance standards.
cured shall be subject to three consecutive autoclaving cycles
4.3 Unless otherwise specified in the contract or purchase
at 15 psi for 30 min. Capped items shall be removed after each
order, the supplier shall be responsible for the performance of
autoclaving cycle and allowed to cool for 30 min before
all designated inspection requirements. Except as otherwise
repeatingtheheatingcycle.Autoclaveditemswithcaporcover
specifiedinthecontractorpurchaseorder,thesuppliermayuse
shall be subjected to leakage test. Temperature shall be 121°C.
his own or any other facilities suitable for the performance of
6.5 Pour Test—Fill the item to normal capacity with dis-
the inspection requirements. The purchaser has the right to
tilled water. Tilt at an angle of 45° and pour approximately one
perform any of the inspections set forth in the specification
fourth of the water from the item at such a rate that the water
where such inspections are deemed necessary to ensure sup-
flows in a continuous stream and falls freely from the spout.
plies conform to prescribed requirements.
Stream of water should not cling to the outside of the item and
5. Sampling and Inspection
flow off the bottom.
6.6 Centrifuge Test—The centrifuge may be any type or
5.1 Sampling shall be conducted in accordance with MIL-
model commercially available or normally employed in labo-
STD-105 with the levels of inspection and examination and
ratories and capable of speeds (RPM) recommended for the
acceptable quality levels as noted in Tables 1-13 unless
item. Item shall be filled with ta
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