| TEST
REPORT |
by
Intertek Testing Services
Hong
Kong Government Recognized Service Supplier
Approved Laboratory of International Wool Secretariat
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BACTERICIDA
EFFECT
With
reference to bacteriological analytical
manual,8th Edition by A.O.A.C.
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| TESTING
CONDITION |
| 1.
The room size = Approximate 60m3 |
| 2.
Sample collector = By Andersen two-stage
viable sampler |
| 3.
Time of sample collection = 10 minutes |
| 4.
Two sampling locations = (a) Entry of the
room |
|
(b)
Backside of the room |
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RESULT
| Measurement |
Location |
Result
(cfu/m3) |
Percentage
Reduction |
| Total
Plate Count |
Mould
& Yeast Count |
Total
Plate Count |
Mould
& Yeast Count |
| Before
Ignition |
(a) |
620 |
50 |
-- |
-- |
| (b) |
400 |
65 |
-- |
-- |
| After
45 Minutes Ignition |
(a) |
60 |
40 |
90% |
25% |
| (b) |
60 |
40 |
85% |
40% |
| Return
to Normal Condition (After 3.5 hrs.) |
(a) |
470 |
20 |
-- |
-- |
| (b) |
410 |
35 |
-- |
-- |
Remark
: cfu = Colony Forming Unit
Date Sample Received : Apr 20, 2000
Testing Period : Apr 25, 2000 to May 05,
2000 |
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PARTICLE
COUNT
With
reference to federal standard 209E particle
cleanliness by particle counter.
RESULT |
| Measurement |
Particle
size |
No. of Particle /m3
|
| Before
Ignition |
0.3
0.5
1.0
3.0
5.0
10.0 |
1.46 x 107
1.12 x 107
4.84 x 106
7.41 x 104
7820
850 |
| After
45 minutes Ignition |
0.3
0.5
1.0
3.0
5.0
10.0 |
2.31 x 107
9.31 x 106
1.99 x 106
4.01 x 104
7490
610 |
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| TEST
REPORT |
By PSB Singapore
PSB is established as a statutory and testing authority by an Act
of Parliament, the PSB Act No. 1 of 1996.
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METHOD
OF TEST
As requested, the evaluation of essential
oil product was conducted as follows:
The
test was conducted in a room of floor
area of about 7m2. The lamp
was placed in the middle of the room.
Initial microbial quality of the air in
the room was determined using Biotest
RCS centrifugal air sampler. Thereafter,
the lamp was allowed to burn continuously
for a period of 4 hours. At time internvals
of 1,2,3 and 4 hours, the microbial quality
of the air in the room was determined.
|
RESULT
| Time
Interval (hour) |
Total
Bacteria Count, cfu per m3
(TSA, 350C 48 hr) |
Total
Yeast & Mould Count,
cfu per m3
(RBA, 25C 5 days) |
| 0 |
3175 |
550 |
| 1 |
1725 |
225 |
| 2 |
1163 |
163 |
| 3 |
850 |
163 |
| 4 |
Less than 13 |
138 |
Notes:
cfu : Colony forming unit
TSA : Tryptone Soya Agar
RBA : Rose-Bengal ChloramphenicolAgar
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Copyright
Bikosanworld @2002 ,Design RA. Andhoko
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