ASTM E1157-87(2001)e1

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Designation: E 1157 – 87 (Reapproved 2001)
Standard Specification for
Sampling and Testing of Reusable Laboratory Glassware
This standard is issued under the fixed designation E 1157; 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.
This standard has been approved for use by agencies of the Department of Defense.
e NOTE—Keywords were added editorially October 2001.
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
3. Terminology
glassware: blown and pressed glassware, nongraduated ;
blown and pressed glassware, graduated ; tubular glassware,
3.1 Definitions of Terms Specific to This Standard:
nongraduated; and tubular glassware, graduated.
3.1.1 lot—items of the same respective type, class, style,
1.3 This specification is intended to be used in conjunction
and size offered for acceptance at one time that have been
withastandardspecificationforaspecificlaboratoryglassware
produced by one manufacturer under essentially the same
product.
manufacturing conditions.
1.4 The following precautionary statement pertains only to
3.1.2 inspection—as both “examination” (such as visual
the test method portion, Section 6, of this specification. This
investigation without the use of special laboratory appliances
standard does not purport to address all of the safety concerns,
or procedure) and “testing” (determination by technical means
if any, associated with its use. It is the responsibility of the user
of physical and chemical properties) of the item.
of this standard to establish appropriate safety and health
4. Performance Requirements
practices and determine the applicability of regulatory limita-
tions prior to use.
4.1 The product shall be designed to meet test performance
requirements specified in Section 6. Testing of individual lots
2. Referenced Documents
may be obviated when process controls are employed and
2.1 ASTM Standards:
C 162 Terminology of Glass and Glass Products
E 542 Practice for Calibration of Laboratory Volumetric
TABLE 2 BLOWN OR PRESSED ITEMS (GRADUATED AND
NONGRADUATED)
Apparatus
Classification of Defects (Nongraduated)
E 671 Specification for Maximum Permissible Thermal Re-
Major:
sidual Stress in Annealed Glass Laboratory Apparatus
101—Not free of cracks, unhealed chips, breaks or sharp edges.
2.2 Military Standard:
102—Not free of checks and open blisters.
MIL-STD-105 Sampling Procedures and Tables for Inspec-
103—Required components missing.
104—Not free of protruding stones.
tion by Attributes
105—Not free of stones (buried) or knots that exceed dimensions in Table 9.
106—Required glass joints, rubber stoppers, stopcock plugs or closures not as
specified.
107—Not within stress limits as defined in Specification E 671.
This specification is under the jurisdiction of ASTM Committee E41 on
Minor:
Laboratory Apparatus and is the direct responsibility of Subcommittee E41.01 on
201—Identification marking not complete, correct, legible, and permanent, (see
Glass Apparatus.
6.2).
Current edition approved March 27, 1987. Published July 1987.
202—Not free of blisters (buried) that exceed dimensions in Table 4, Table 8,
As defined in Terminology C 162.
and Table 5.
Annual Book of ASTM Standards, Vol 15.02.
203—Not free of wiry cord or deformation that affects intended use or
Annual Book of ASTM Standards, Vol 14.02.
serviceability.
Available from Specification Sales (3FRSBS) Bldg. 197, Washington Navy 204—Not free of scale that exceeds dimensions in Table 8.
Yard, GSA, Washington, DC 20407.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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E 1157 – 87 (2001)
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 E 671.
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)—Avolumeofdistilledwaterequal
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 E 542.
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 tap water to appropriate capacity
otherwise agreed upon by purchaser and vendor. Wher
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