ASTM E1516-98

Standard Guide for Packaging of Silicon Carbide Whiskers and Fibers (Withdrawn 2007)

SCOPE
1.1 This guide covers the packaging of unbound silicon carbide whiskers and fibers and materials containing respirable silicon carbide whiskers and fibers. Airborne respirable silicon carbide whiskers are considered a potential health hazard.
1.2 All applicable Federal, state, county, and local regulations must be complied with when this guide is used.
1.3 This standard does not purport to address all of the safety problems, 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.
WITHDRAWN RATIONALE
This guide covered the packaging of unbound respirable silicon carbide (SiC) whiskers and materials containing respirable silicon carbide whiskers. Airborne respirable silicon carbide whiskers are considered a potential health hazard.
Formerly under the jurisdiction of Committee E34 on Occupational Health and Safety, this guide was withdrawn in 2007 in accordance with section 10.5.3.1 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.

General Information

• Status: Withdrawn
• Publication Date: 09-Apr-1998
• Withdrawal Date: 15-Feb-2007
• ICS: 55.180.40 - Complete, filled transport packages
• Technical Committee: E34 - Occupational Health and Safety

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:E1516–98
Standard Guide for
Packaging of Unbound Respirable Silicon Carbide
Whiskers
This standard is issued under the fixed designation E 1516; 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.
1. Scope 3.1.1 respirable silicon carbide whiskers, n—a crystalline
silicon carbide fiber, approximately cylindrical in shape, with a
1.1 This guide covers the packaging of unbound respirable
diameterlessthan3.0µmandanaspectratioequaltoorgreater
silicon carbide (SiC) whiskers and materials containing respi-
than 5:1.
rable silicon carbide whiskers. Airborne respirable silicon
3.1.2 unbound silicon carbide whiskers, n—whiskers and
carbide whiskers are considered a potential health hazard.
fibers with the potential to become airborne.
1.2 All applicable federal, state, county, local or other
regulations must be complied with when this guide is used.
4. Significance and Use
1.3 This standard does not purport to address all of the
4.1 Packaging of unbound respirable SiC whiskers, and
safety concerns, if any, associated with its use. It is the
materials containing unbound respirable SiC whiskers, may
responsibility of the user of this standard to establish appro-
result in a potential respirable exposure to SiC whiskers.
priate safety and health practices and determine the applica-
4.2 This guide is intended for use by health and safety
bility of regulatory limitations prior to use.
professionals as well as packaging specialists in preparing
2. Referenced Documents procedures for safe packaging, and in preparing relevant
documentation.
2.1 ASTM Standards:
E 1437 Practice for Handling Silicon Carbide Whiskers
5. Material Characteristics to Be Considered in
E 1451 GuideforDisposalofWastesContainingRespirable
Packaging Design
Silicon Carbide Whiskers
5.1 Silicon carbide whiskers can be electrostatically
E 1718 Guide for Administrative and Engineering Controls
charged; therefore, packaging capable of generating electro-
for Silicon Carbide Whisker Work Areas
static charges may attract and hold whiskers on the outside
2.2 ANSI Standard:
surface, eventually allowing contamination of areas outside the
ANSI Z9.2-1979, Fundamentals Governing the Design and
3 immediate work area during subsequent container handling.
Operation of Local Exhaust Systems
5.2 The aerodynamic equivalent diameter of unbound sili-
3. Terminology con carbide whiskers is such that they easily become airborne.
5.3 Angles as steep as 70° may be necessary to ensure flow
3.1 Definitions:
of some unbound whiskers or unbound whisker-containing
materials.
This guide is under the jurisdiction ofASTM Committee E-34 on Occupational
6. Packaging Recommendations to Limit Potential
Health and Safety and is the direct responsibility of Subcommittee E34.70 on Single
Crystal Ceramic Whiskers. Personnel Exposure
Current edition approved Apr. 10, 1998. Published June 1998. Originally
6.1 Rigid, non-porous, tightly-sealing containers with
published as E 1516 – 93. Last previous edition E 1516 – 93.
smooth inner surfaces are preferred to rough or porous con-
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
tainers. Examples of these preferred containers include plastic
Standards volume information, refer to the standard’s Document Summary page on
drums,fiberdrumscoatedinternally,metaldrums,metaldrums
the ASTM website.
3 coated internally, and bulk containers. Containers having
Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
4th Floor, New York, NY 10036, http://www.ansi.org. porous or rough surfaces, such as uncoated fiberboard (paper)
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
E1516–98
drums, which may entrap whiskers, should not be used when 7. Packaging and Product Quality Concerns
the container wi
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