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| PHYSICAL DATA SUMMARY |
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| Common date for Excel-Tone MR |
| Physical
Properties |
Test
Method |
| Moisture
Content |
2.0% |
JIS A 6301 |
| Modulus of Rupture |
17Kgf/cm2 |
JIS A 6301 |
| Non-combustibility |
As approved
by the Japanese Minister of Construction under the approval
No.2026 / B.S.476 Part 4 |
| Fire Propagation Test |
Class 0 |
B.S.476 Part 6 |
| Flame Spread |
Class 1 (0-25) |
ASTM-E84 |
| Class A |
U.S.Federal Spec.
SS-S-118B |
| 20 |
Underwriters Laboratories
Inc. |
| Class 1 |
B.S.476 Part 7 |
| Thermal Conductivity |
0.045 Kcal/mhoC |
JIS A 1412 |
| Light Reflectance |
LR 1 (over 75%) |
ASTM C 523 |
| Sound Absorption Coefficient |
0.55-0.60 |
ASTM C 423 |
| Ceiling Attenuation
Class (CAC) |
36 |
ASTM E 413 |
| JIS : Japanese Industrial Standard |
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| SOUND ABSORPTION COEFFICIENT |
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| Sound Absorption Coefficient (N.R.C) of
Excel-Tone MR |
| Installation Method |
Thickness |
Travartine
-Dellca pattern |
New NDF pattern |
Constellation pattern |
Exposed
T-Bar
System |
5/8" |
N.R.C
0.55-0.60 |
N.R.C
0.55-0.60 |
N.R.C
0.55-0.60 |
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| CEILING ATTENUATION CLASS |
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| CAC of Excel-Tone MR (Travertine-Delica
pattern) |
Installation
Method |
Thickness |
Frequency
(Hz) |
125 |
250 |
500 |
1000 |
2000 |
4000 |
Exposed
T-Bar
System |
5/8" |
20 |
29 |
36 |
39 |
40 |
40 |
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