UL的防火等级查询

UL94:2006/HB UL94:2006/V-0 UL94:2006/V-1 UL94:2006/V-2 UL94:2006/5VA UL94:2006/5VB UL94:2006/VTM-0 UL94:2006/VTM-1 UL94:2006/VTM-2
"A material classed HB shall (also see 7.1.4):
a) Not have a burning rate exceeding 40 mm per minute over a 75 mm span for specimens having a thickness of 3.0 to 13 mm, or
b) Not have a burning rate exceeding 75 mm per minute over a 75 mm span for specimens having a thickness less than 3.0 mm, or
c) Cease to burn before the 100 mm reference mark. See 7.5.1 and 7.5.9.
7.1.3 A material classified HB in the 3.0 +0.2 mm thickness shall automatically be classed HB down to a 1.5 mm minimum thickness without additional testing.
7.1.4 If only one specimen from a set of three specimens does not comply with the requirements, another set of three specimens is to be tested. All specimens from this second set shall comply with the requirements in order for the material in that thickness to be classified HB." "1.Afterflame time for each individual specimen t1 or t2
≤10s
2.Total afterflame time for any condition set (t1 plus t2 for the 5 specimens) ≤50s
3.Afterflame plus afterglow time for each individual specimen after the second flame application (t2+t3) ≤30s
4.Afterflame or afterglow of any specimen up to the holding clamp
NO

1. Cotton indicator ignited by flaming particles or drops NO" "1.Afterflame time for each individual specimen t1 or t2 ≤30s

2.Total afterflame time for any condition set (t1 plus t2 for the 5 specimens) ≤250s
3.Afterflame plus afterglow time for each individual specimen after the second flame application (t2+t3) ≤60s
4.Afterflame or afterglow of any specimen up to the holding clamp
NO

1. Cotton indicator ignited by flaming particles or drops NO" "1.Afterflame time for each individual specimen t1 or t2 ≤30s

2.Total afterflame time for any condition set (t1 plus t2 for the 5 specimens) ≤250s
3.Afterflame plus afterglow time for each individual specimen after the second flame application (t2+t3) ≤60s
4.Afterflame or afterglow of any specimen up to the holding clamp
NO

1. Cotton indicator ignited by flaming particles or drops Yes" "1.Afterflame time plus afterglow time after fifth flame application for each individual bar specimen.

≤60s
2.Cotton indicator ignited by flaming particles or drops from any bar specimen
NO
3.Burn-through(hole)of any plague specimen.
NO" "1.Afterflame time plus afterglow time after fifth flame application for each individual bar specimen.
≤60s
2.Cotton indicator ignited by flaming particles or drops from any bar specimen
NO
3.Burn-through(hole)of any plague specimen.
YES" "1.Afterflame time for each individual specimen t1 or t2
≤10s
2.Total afterflame time for any condition set (t1 plus t2 for the 5 specimens)
≤50s
3.Afterflame plus afterglow time for each individual specimen after the second flame application (t2+t3)
≤30s
4.Afterflame or afterglow of any specimen up to the 125mm mark
NO

1. Cotton indicator ignited by flaming particles or drops

NO" "1.Afterflame time for each individual specimen t1 or t2
≤30s
2.Total afterflame time for any condition set (t1 plus t2 for the 5 specimens)
≤250s
3.Afterflame plus afterglow time for each individual specimen after the second flame application (t2+t3)
≤60s
4.Afterflame or afterglow of any specimen up to the 125mm mark
NO

1. Cotton indicator ignited by flaming particles or drops

NO" "1.Afterflame time for each individual specimen t1 or t2
≤30s
2.Total afterflame time for any condition set (t1 plus t2 for the 5 specimens)
≤250s
3.Afterflame plus afterglow time for each individual specimen after the second flame application (t2+t3)
≤60s
4.Afterflame or afterglow of any specimen up to the 125mm mark
NO

1. Cotton indicator ignited by flaming particles or drops

YES"