Astm D 5048 – 03 pdf free download

Standard Test Method for
Measuring the Comparative Burning Characteristics and
Resistance to Burn-Through of Solid Plastics Using a
125-mm Flame1

This standard is issued under the fixed designation D 5048; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of the last revision. A number in parentheses indicates the year of the last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.

1. Scope*

1.1 This fire-test-response test method covers a small-scale
laboratory procedure for determining the relative burning
characteristics and the resistance to burn-through of plastics
using small bar and plaque specimens exposed to a 125-mm
(500-W nominal) flame.
NOTE 1—This test method and IEC 60695-11-20 are technically
equivalent.
NOTE 2—For additional information on comparative burning characteristics of solid plastics in a vertical position, see Test Method D 3801.

1.2 This test method was developed for polymeric materials
used for parts in devices and appliances. The results are
intended to serve as a preliminary indication of their acceptability with respect to flammability for a particular application.
The final acceptance of the material is dependent upon its use
in complete equipment that conforms with the standards
applicable to such equipment.

1.3 The classification system described in Appendix X1 is
intended for quality assurance and the preselection of component materials for products.

1.4 This test method may be applied to other nonmetallic
materials if found to be appropriate.

1.5 This test method is not intended to cover plastics when
used as materials for building construction or finishing.

1.6 This standard is used to measure and describe the
response of materials, products, or assemblies to heat and
the flame under controlled conditions, but does not by itself
incorporate all factors required for fire hazards or fire risk
assessment of materials, products, or assemblies under actual
fire conditions.

1.7 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 applica