ASTM D3950-10a
(Specification)Standard Specification for Strapping, Nonmetallic (and Joining Methods)
Standard Specification for Strapping, Nonmetallic (and Joining Methods)
ABSTRACT
This specification covers nonmetallic strapping and joining methods for closing, reinforcing, and bundling materials for shipment, unitizing, palletizing, and bracing for car and truck loading. The strappings are classified into five types according to the type of materials used. If necessary, seals and buckles made from steel with zinc, black iron oxide, or any equivalent corrosion protective coatings or plastic buckles may be used. Each sample should be collected and tested using the given procedures and should conform to the required values of breaking strength and elongation, transverse strength, and joint strength, when applicable, for each strapping type.
SCOPE
1.1 This specification covers nonmetallic strapping and joining methods intended for use in closing, reinforcing, and bundling articles for shipment, unitizing, palletizing, and bracing for car loading and truck loading.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.3 The following safety hazards caveat pertains only to the test method portion, Section 12, 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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Designation: D3950 – 10a
Standard Specification for
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Strapping, Nonmetallic (and Joining Methods)
This standard is issued under the fixed designation D3950; 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 ANSI/ASQC Z1.9 Sampling Procedures and Tables for
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Inspection by Variables for Percent Nonconforming
1.1 This specification covers nonmetallic strapping and
joining methods intended for use in closing, reinforcing, and
3. Terminology
bundling articles for shipment, unitizing, palletizing, and
3.1 For general definitions of packaging and distribution
bracing for car loading and truck loading.
environments, see Terminology D996.
1.2 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical
4. Classification
conversions to SI units that are provided for information only
4.1 Types and Grades:
and are not considered standard.
1.3 The following safety hazards caveat pertains only to the
Type I — Strapping, bonded rayon cord.
test method portion, Section 12, of this specification: This
Grade 1—Light duty.
standarddoesnotpurporttoaddressallofthesafetyconcerns,
Grade 2—Regular duty.
Grade 3—Heavy duty.
ifany,associatedwithitsuse.Itistheresponsibilityoftheuser
Type IA — Strapping, bonded, or woven polyester cord.
of this standard to establish appropriate safety and health
Grade 1—Light duty.
practices and determine the applicability of regulatory limita-
Grade 2—Regular duty.
tions prior to use. Grade 3—Heavy duty.
Grade 4—Extra heavy duty.
Grade 5—Special duty.
2. Referenced Documents
Grade 6—Special duty.
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2.1 ASTM Standards: Grade 7—Special duty.
Type II — Strapping, polypropylene plastic.
D996 Terminology of Packaging and Distribution Environ-
Type III — Strapping, nylon plastic.
ments
Type IV — Strapping, polyester plastic.
D3951 Practice for Commercial Packaging
5. Ordering Information
D4332 Practice for Conditioning Containers, Packages, or
Packaging Components for Testing
5.1 The inquiry and order shall indicate the following:
2.2 Other Standards: 5.1.1 Type, grade, and dimensions required (see 4.1 and
ANSI/ASQC Z1.4 Sampling Procedures and Tables for
7.1),
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Inspection by Attributes 5.1.2 Length per coil (see 8.1),
5.1.3 Joining method (see 6.2), type and size required (if
needed),
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This specification is under the jurisdiction of ASTM Committee D10 on
5.1.4 If an embossed finish on strapping is desired or
Packaging and is the direct responsibility of Subcommittee D10.25 on Palletizing
allowed (see Footnote in Table 1, Table 2, and Table 3),
and Unitizing of Loads.
Current edition approved Aug. 15, 2010. Published August 2010. Originally
5.1.5 Make and model of strapping equipment that the
approved in 1980. Last previous edition approved in 2010 as D3950 – 10. DOI:
strapping and joining method must work in, if applicable,
10.1520/D3950-10A.
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5.1.6 Coil dimensions (see 8.1),
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 5.1.7 Level of packaging and packing if other than commer-
Standards volume information, refer to the standard’s Document Summary page on
cial (see Section 15), and
the ASTM website.
5.1.8 ASTM designation and date of issue.
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Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
4th Floor, New York, NY 10036, http://www.ansi.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D3950 – 10a
TABLE 1 Breaking Strengths of Type II Strapping (PP) TABLE 2 Breaking Strengths of Type III Strapping (Nylon)
Nominal Width Nominal Thickness Minimum Nominal Width Nominal Thickness Minimum Breaking
A B
of Strapping of Strapping Breaking Strength of Strapping, of Strapping, in. (mm) Strength, lbf (N)
A B
in. (mm) in. (mm) lb (N) in. (mm)
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0.197 (5.0) 0.0120 (0.30) 80 (360) ⁄16 (11.1) 0.017 (0.43) 420 (1870)
0.197 (5.0) 0.0145 (0.37) 100 (440) 0.023 (0.58) 560 (2490)
0.234 (5.9) 0.0135 (0.34) 130 (580) 0.029 (0.74) 700 (3110)
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⁄2 (12.7) 0.015 (0.38) 420 (1870)
0.234 (5.9) 0.0140 (0.36) 155 (690)
0.236 (6.0) 0.0130 (0.33) 135 (600) 0.020 (0.51) 560 (2490)
0.025 (0.64) 700 (3110)
0.234 (5.9) 0.0160 (0.41) 180 (800)
0.236 (6.0) 0.0173 (0.44) 190 (850) 0.030 (0.76) 900 (4000)
1
⁄4 (6.4) 0.0135 (0.34) 134 (600)
A
When specified (see 5.1.4), the strapping as measured by a flat anvil
1
⁄4 (6.4) 0.0150 (0.38) 180
...
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