Standard Practice for Sampling Glass Containers

ABSTRACT
This practice covers the standard for sampling of glass bottles, jars, and other containers intended for use in testing mechanical strength, dimensions, and other measurable characteristics. Sampling from a continuous manufacturing process shall be in accordance with a time schedule. When testing for annealing affected characteristics, samples shall be taken from the exit of the lehr (or from packed cases whose continuity in point of time is known). For characteristics not affected by the degree of annealing, quickly cooled samples may be taken ahead of the lehr. Sample may come from the lot as a whole or it may be necessary to sort the lot before sampling. Sorting may be based on style, color, size, manufacturer, or mold designation. Containers packed in cases shall be removed from the lot at random. The minimum number of cases to be selected shall be in accordance with the military standard prescribed herein.
SCOPE
1.1 This practice covers the sampling of glass containers (for example, bottles, jars, and so forth) for performing such tests as mechanical strength, dimensions, and other measurable characteristics, and for visual examination.  
1.2 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.

General Information

Status
Historical
Publication Date
30-Sep-2014
Technical Committee
Drafting Committee
Current Stage
Ref Project

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: C224 − 78 (Reapproved 2014)
Standard Practice for
Sampling Glass Containers
This standard is issued under the fixed designation C224; 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 unit of the manufacturing process that controls the character-
istic is the mold or mold cavity (as distinguished from the
1.1 This practice covers the sampling of glass containers
furnace, feeder, or lehr), namely, capacity, dimensions.
(for example, bottles, jars, and so forth) for performing such
tests as mechanical strength, dimensions, and other measurable
4. Number of Specimens
characteristics, and for visual examination.
4.1 Unless otherwise specified, the minimum number of
1.2 This standard does not purport to address all of the
specimens for the various classifications of Section 3 is given
safety concerns, if any, associated with its use. It is the
in Table 1.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica- 5. Procedure
bility of regulatory limitations prior to use.
5.1 Continuous Process—Sampling from a continuous
manufacturing process shall be in accordance with a time
2. Referenced Documents
schedule. For those characteristics affected by the degree of
2.1 ASTM Standards:
annealing, take the samples from the exit of the lehr (or from
C147 Test Methods for Internal Pressure Strength of Glass
packed cases whose continuity in point of time is known). For
Containers
those characteristics not affected by the degree of annealing,
C149 Test Method for Thermal Shock Resistance of Glass
quickly cooled samples may be taken ahead of the lehr.
Containers
5.2 Lot—Select the sample from a lot by a procedure
2.2 Military Standard:
consistent with the purpose of the sample. For some purposes,
MIL-STD 105 E Sampling Procedures and Tables for In-
the sample may come from the lot as a whole; for other
spection by Attributes
purposes, it may be necessary to sort the lot before sampling.
Such sorting may be for the purpose of segregating lots based
3. Classification
on style, color, size, manufacturer, or mold designation, as
3.1 For sampling purposes the pertinent characteristics of
examples. Take the specimens composing the sample accord-
glass containers are classified as follows:
ing to the principles of random sampling; for instance, do not
3.1.1 Grade of annealing (relative annealing stress).
take all the specimens from the same side or location of the lot.
3.1.2 Hydrostatic pressure.
Ifthecontainersarepackedincases,removethecasesfromthe
3.1.3 Thermal shock strength.
lot at random. Take specimens for evaluation, in turn, at
3.1.4 Visible characteristics readily graded or judged by
random from these cases. The minimum number of cases to be
visual examination, namely, deformities.
selected shall be determined in accordance with MIL-STD
3.1.5 Mold characteristics of a structural character (as
105 E (see 5.2.1) or that number required to provide the
distinguished from appearance) where the component part or
number of individual containers to be evaluated (see 5.2.2),
whichever quantity represents the larger number of cases. If
more than one independent evaluation can be performed on the
This practice is under the jurisdiction of ASTM Committee C14 on Glass and
same container, no additional sample is required for the
Glass Products and is the direct responsibility of Subcommittee C14.07 on Glass
multiple evaluation.
Containers.
Current edition approved Oct. 1, 2014. Published October 2014. Originally
5.2.1 Minimum Number of Cases Determined in Accor-
approved in 1953. Last previous edition approved in 2009 as C224 – 78 (2009).
dance with MIL-STD—Determine the number of cases in the
DOI: 10.1520/C0224-78R14.
lot and use this number as “lot size” for Table 1 of MIL-STD
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
105 E. Find the corresponding sample size code letter (nor-
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
mally Column II) of Table 1. Using the first and second
the ASTM website.
columns of Table II-A, find the sample size corresponding to
Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
this code letter. This sample size will designate the number of
Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://
www.dodssp.daps.mil. cases to be selected at random from the lot.As far as possible,
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
C224 − 78 (2014)
TABLE 1 Minimum Number of Specimens for Sample
Classification (Test or Examination to be Made Continuous Production (Lehr) Lot, Minimum Number
on Specimen) of Containers
Minimum Number Time Schedule
A
Annealing 3 3 h or less 20
B C
Internal pressure 1 round 3 h or less 50
B D C
Thermal shock 1 round variable 50
E EF
Visible characteristics not applicable not applicable
G H
Dimensional characteristics 1 round variable 50
A
The three containers shall represent both sides and center of lehr.
B
A “round” is one
...


This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: C224 − 78 (Reapproved 2009) C224 − 78 (Reapproved 2014)
Standard Practice for
Sampling Glass Containers
This standard is issued under the fixed designation C224; 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
1.1 This practice covers the sampling of glass containers (for example, bottles, jars, and so forth) for performing such tests as
mechanical strength, dimensions, and other measurable characteristics, and for visual examination.
1.2 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.
2. Referenced Documents
2.1 ASTM Standards:
C147 Test Methods for Internal Pressure Strength of Glass Containers
C149 Test Method for Thermal Shock Resistance of Glass Containers
2.2 Military Standard:
MIL-STD 105 E Sampling Procedures and Tables for Inspection by Attributes
3. Classification
3.1 For sampling purposes the pertinent characteristics of glass containers are classified as follows:
3.1.1 Grade of annealing (relative annealing stress).
3.1.2 Hydrostatic pressure.
3.1.3 Thermal shock strength.
3.1.4 Visible characteristics readily graded or judged by visual examination, namely, deformities.
3.1.5 Mold characteristics of a structural character (as distinguished from appearance) where the component part or unit of the
manufacturing process that controls the characteristic is the mold or mold cavity (as distinguished from the furnace, feeder, or lehr),
namely, capacity, dimensions.
4. Number of Specimens
4.1 Unless otherwise specified, the minimum number of specimens for the various classifications of Section 3 is given in Table
1.
5. Procedure
5.1 Continuous Process—Sampling from a continuous manufacturing process shall be in accordance with a time schedule. For
those characteristics affected by the degree of annealing, take the samples from the exit of the lehr (or from packed cases whose
continuity in point of time is known). For those characteristics not affected by the degree of annealing, quickly cooled samples may
be taken ahead of the lehr.
5.2 Lot—Select the sample from a lot by a procedure consistent with the purpose of the sample. For some purposes, the sample
may come from the lot as a whole; for other purposes, it may be necessary to sort the lot before sampling. Such sorting may be
for the purpose of segregating lots based on style, color, size, manufacturer, or mold designation, as examples. Take the specimens
composing the sample according to the principles of random sampling; for instance, do not take all the specimens from the same
This practice is under the jurisdiction of ASTM Committee C14 on Glass and Glass Products and is the direct responsibility of Subcommittee C14.07 on Glass Containers.
Current edition approved May 1, 2009Oct. 1, 2014. Published September 2009October 2014. Originally approved in 1953. Last previous edition approved in 20042009
as C224 – 78 (2009). (2004). DOI: 10.1520/C0224-78R09.10.1520/C0224-78R14.
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 Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://www.dodssp.daps.mil.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
C224 − 78 (2014)
TABLE 1 Minimum Number of Specimens for Sample
Classification (Test or Examination to be Made Continuous Production (Lehr) Lot, Minimum Number
on Specimen) of Containers
Minimum Number Time Schedule
A
Annealing 3 3 h or less 20
B C
Internal pressure 1 round 3 h or less 50
B D C
Thermal shock 1 round variable 50
E E F
Visible characteristics not applicable not applicable
G H
Dimensional characteristics 1 round variable 50
A
The three containers shall represent both sides and center of lehr.
B
A “round” is one container from each mold or mold cavity of the forming machine. Test to be made on pieces that have passed visual inspection.
C
For a pass test (attribute testing), 50 containers, randomly selected, but representative of the mold cavities present in the lot, shall be tested as the first sample in a double
sampling method, followed, when necessary, by a second sample of 50 containers equally random and representative of all mold cavities present. The acceptance and
rejection number shall be chosen from Table X-J-2 of MIL-STD 105 E in accordance with the agreed upon acceptable quality level. Progressive tests (variable testing) shall
be based on a single sample of 50 containers. Test Methods C147 and C149 shall be followed for test details.
D
Because of the great variability of potential thermal shock requirements in the trade and the difference in susceptibility to thermal shock of various designs, the appropriate
time schedule for each situation
...

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