Mitsubishi Electric Lossnay LGH-15RX3 Technical Manual page 35

CHAPTER 3 G General Technical Considerations
The Lossnay Core was also tested at the Japan Construction General Laboratories according to the fire retardancy test
methods of thin materials for construction as set forth by JIS A 1322. The material was evaluated as Class 2 flame retardant.
Details of the tests carried out are shown below.
Flame-proofing property test report
Messrs. Mitsubishi Electric Corp.,
Nakatsugawa Works
Applicant
Specimen
and test body
Testing
method
Test results
Evaluation
Persons in charge of testing
Note: Immediately after starting heating, the flame was ignited simultaneously with the generation of smoke. Penetration was
observed approx. 2 min. 30 sec., after heating was started. There were no further changes.
The Lossnay core was tested at the Underwriters Laboratories Inc. according to the standard of UL94, Test for
Flammability of Plastic Materials for Parts in Devices and Appliances, 1998.
The material was evaluated as per 5VA classified of flammability.
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Company name
Address
Specimen type
Material structure and
cross-sectional
diagram, etc.
Test body size and
thickness (mm)
Test body direction
Testing standards
JIS A 1322
(45° Meckelian burner
method)
Test date
Test position
Class Direction No.
1
Front Vertical 2
3
The specimen conforms to Class 2 flame-proofing (heating time: 3 min.) according to the "Fire
retardancy test methods of thin materials for construction" as set forth by JIS A 1322.
Acceptance No.
Data of acceptance
Data of report
Hiorshi Wakabayashi Dr. of Engineering, Director
Mitsubishi Electric Corp., Nakatsugawa Works
1-3 Komanba-cho, Nakatsugawa, Gifu
Single-face laminated
corrugated board
300 (Long side) × 200 (Short side) × 4 (Thickness)
The longer side is the vertical side.
Pre-treatment of Heating
test body time
Method A
3 min.
(drying method)
Residual Residual
frame dust
(sec.) (sec.)
0 0
0 0
0 0
Material Testing Laboratory
Laboratory chief: Hiroshi Tamura, Technicians: Shigeru
Fujikawa, Nobuaki Oohiro, Tetsuya Ogawa
VF-93-11-(2)
September 7, 1993
October 12, 1993
Japan Construction General Laboratories
5-8-1 Fujishirodai, Suita City 565
Tel: 06-872-0391
Product Lossnay Core
name (Total heat recovery unit)
Single-face laminated corrugated board
... Thickness: 4 mm
(Single-face corrugated board with
2 mm cell size laminated alternately at
right angle)
Partition (Liner paper) Flame-proof
treated paper
... Thickness: 0.085 mm, Weight: 70 g/m
Adhesive agent ... Vinyl acetate resin
2
... Weight: 30 g/m (Solid)
Filler (Flute paper)
... Colored wood free paper
... Thickness: 0.093 mm, Weight: 79 g/m
Adhesive agent
... Vinyl acetate resin
2
... Weight: 30 g/m (Solid)
Partition (Liner paper) Flame-proof
treated paper
... Thickness: 0.085 mm, Weight: 70 g/m
Heating surface class and direction
The direction of which the corrugated
board fold was vertical was set as the
front of the heating surface.
October 5, 1993
Carbonized Discoloration
length (Vertical × length (Vertical ×
Horizontal) (cm) Horizontal) (cm)
8.2 × 4.7 18.7 × 7.3
8.4 × 4.9 24.3 × 7.8
7.4 × 5.0 22.0 × 8.4
2
2
2
Remarks
*1