ASTM F1079-87(1998)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: F 1079 – 87 (Reapproved 1998)
Standard Specification for
Inserted and Noninserted Surgical Scissors
This standard is issued under the fixed designation F 1079; 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.
1. Scope of martensitic stainless steel type 410, 410K, 416, 420, 420A,
and 420B of Specification F 899. Inserts shall be made of
1.1 This specification covers general workmanship aspects
stellite or tungsten carbide or other suitable material.
of inserted and noninserted stainless steel scissors fabricated
from stainless steel and intended for reuse in surgery.
5. Physical Properties
1.2 The following safety hazards caveat pertains only to the
5.1 Rockwell Hardness—The Rockwell hardness of the
test method described in this specification: This standard does
scissor halves and inserts shall be within the range of 40 HRC
not purport to address all of the safety problems, if any,
and 58 HRC (approximately equivalent to Vickers hardness
associated with its use. It is the responsibility of the user of this
530 HV and 670 HV). Opposite halves and inserts shall not
standard to establish appropriate safety and health practices
vary in hardness by more than 4 points on the Rockwell
and determine the applicability of regulatory limitations prior
hardness scale (HRC) or equivalent.
to use.
5.2 Passivation—Instruments and instrument components
2. Referenced Documents shall be passivated after completion of all fabricating and
finishing operations as specified in Practice A 380.
2.1 ASTM Standards:
5.3 Heat Treatment—The component parts of the instru-
A 380 Practice for Cleaning and Descaling Stainless Steel
ments shall be heat treated under conditions recommended for
Parts, Equipment, and Systems
the material used. Typical heat treating guidelines and hardness
E 18 Test Methods for Rockwell Hardness and Rockwell
values are shown in Specification F 899.
Superficial Hardness of Metallic Materials
E 92 Test Method for Vickers Hardness of Metallic Mate-
6. Performance Requirements
rials
6.1 Corrosion Resistance—Instruments or instrument com-
E 140 Hardness Conversion Tables for Metals (Relationship
ponents shall be subject to corrosion tests specified in Test
Between Brinell Hardness, Vickers Hardness, Rockwell
Method F 1089.
Hardness, Rockwell Superficial Hardness, and Knopp
3 6.2 Cutting Ability—The test material shall comply with the
Hardness)
material specified in Table 1, Table 2, or Table 3.
F 899 Specification for Stainless Steel Billet, Bar, and Wire
for Surgical Instruments
F 1078 Terminology for Surgical Scissors—Inserted
TABLE 1 Testing Materials for Lightweight and Micro, Neuro, and
Blades
Ophthalmologic Scissors
F 1089 Test Method for Corrosion of Surgical Instruments
Example of Acceptable
Thickness, in. Examples
Testing Materials
3. Terminology
Synthetic (50 % polyester, 50 % 0.007 (1 layer) Iris Scissors
3.1 Definitions applicable to surgical scissors shall be in
cotton) Strabismus Scissors
accordance with Terminology F 1078.
Stevens Scissors
Dissecting Scissors
Synthetic (65 % polyester, 35 % 0.006/0.007 (Kilner)
4. Material
cotton) Potts-DeMartell
4.1 All the component parts of the instrument shall be made
Joseph
Latex rubber sheet 0.009/0.0115
Latex rubber sheet 0.004/0.008
1 A
Wet facial tissue paper (2 N/A
This specification is under the jurisdiction of ASTM Committee F04 on
layers)
Medical and Surgical Materials and Devices and is the direct responsibility of
A
Silicone tubing 0.030 ID, 0.065 OD
Subcommittee F 04.33 on Medical and Surgical Instruments.
A
Suture—twist polyester fiber 0.025 (G-207)
Current edition approved Sept. 25, 1987. Published Novem
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