Standard Terminology Relating to Flexible Barrier Materials

General Information

Status
Historical
Publication Date
09-Oct-2002
Current Stage
Ref Project

Relations

Buy Standard

Standard
ASTM F17-02 - Standard Terminology Relating to Flexible Barrier Materials
English language
2 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:F17–02
Standard Terminology Relating to
1
Flexible Barrier Materials
This standard is issued under the fixed designation F 17; the number immediately following the designation indicates the year of original
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (e) indicates an editorial change since the last revision or reapproval.
DISCUSSION—“Flexible” may be a characteristic of thin barrier
acid foods—foods that have a natural pH of 4.6 or below.
materials, especially when thinner than 5 to 10 mils, that are composed
aseptic—as applied to aseptic packaging, synonymous with
of materials that are otherwise classified as “rigid” or “semi-rigid”
commercially sterile.
under the definitions concerning rigidity based on modulus of elasticity
aseptic packaging—filling of a commercially sterilized prod-
2
(see Terminology D 883, Terminology Relating to Plastics ). Modulus
uct into presterilized containers, followed by hermetic seal-
of elasticity is an inherent property of a material which in conjunction
ing in a commercially sterile atmosphere.
with thickness determines flexibility.
barrier—anymateriallimitingpassagethroughitselfofsolids,
fusion seal—a bond formed by combining two or more
liquids, semisolids, gases, vapors, or forms of energy such as
materials through melting or other means so that the joining
ultraviolet light.
layers become indistinguishable at the interface.
biological evaluation test (biotest)—a test which involves
hermetically sealed aseptic container— a container that is
exposure of sealed packages to biological indicators and is
designed and intended to be secure against the entry of
designed to determine the microbiological integrity of a
microorganisms and thereby to maintain the commercial
package under the specific conditions of the test.
sterility of its contents.
coextrusion—in flexible barrier materials,(1) a process
laminate—a product made by bonding together two or more
whereby two or more plastic streams are forced simulta-
layers of material or materials. (See also multilayered
neously through one or more shaping orifices to become one
structure)
continuously-formed multilayered structure. (2) Also, the
lamination—in flexible barrier materials, the process of
product resulting from such a process.
preparing a laminate which consists of two or more flexible
commercial sterility— of thermally processed food, the con-
barriers bonded together (see also laminate).
dition achieved by application of heat, alone or in combina-
low-acid food—any food, other than alcoholic beverages, with
tion with other appropriate treatments, to render the food
a finished equilibrium pH greater than 4.6 and a water
free of microorganisms capable of growing in the food at
activity (a ) greater than 0.85. Tomatoes and tomato prod-
w
normal nonrefrigerated conditions at which the food is likely
ucts having a finished equilibrium pH less than 4.7 are not
to be held during distribution and storage.
classed as low-acid foods.
delamination—the separation of layers in a multilayered
major package defect—a defect that is likely to result in
structure.
failureorreducesignificantlytheusabilityofthepackagefor
dispersion coating—in flexible barrier materials,(1) a pro-
its intended use.
cess of applying a material, suspended or dispersed in a
microbiological contamination (of packaged products)—the
vehicle, to a surface in such a way that a continuous,
entry of viable microorganisms into a finished package due
coalesced, adherent layer results when the vehicle liquid
to lack of or loss of package integrity.
(usually water) is evaporated. (2)Also, the product resulting
microbiological package integrity—the physical condition of
from such a process.
a finished package, including, but not limited to, the security
extrusion coating—in flexible barrier materials,(1) a process
of package seals, which ensures the maintenance of the
of extrusion whereby a molten extrudate adheres to the
package contents in a commercially sterile condition.
surface of another (solid) material, forming a continuous
minor package defect—a defect that does not significantly
layeruponcooling.( 2)Also,theproductresultingfromsuch
reduce the usability of the package for its intended purpose,
a process.
or that is a departure from established standards having little
flexible—easily hand-folded, flexed, twisted, and bent.
or no bearing on the effective use of the package.
1
ThisterminologyisunderthejurisdictionofASTMCommitteeF02onFlexible
2
Barrier Materials and is the direct responsibility of F02.50 on Package Design and For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Development. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved Oct
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.