The type ZLT-60 is a new developed low density optical cable filling gel. Because of quite low density, it can directly reduce the cost of product of optical cable, decrease cable weight; to make sure that cable is safety applied under any circumstances such as river, sea, lake, mountain, land and etc.
Cold application type ZLT-60 low density optical cable water-blocking filling gel technical specification
Filling gel is needed to be homogeneous, water repellency, and does not include any dust, metal particles, and other impurities. It should be no nutrition. Filling gel should be non-toxic, no stimulation to the skin.
Serical number |
items |
Unit |
Index |
Experimental method |
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1 |
appearance |
|
Homogeneous, no impurities |
Visual inspection |
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2 |
Dropping point |
℃ |
≥150 |
YD/T839.1- 3.4.1 |
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3 |
density(20℃) |
g/cm2 |
0.60±0.1 |
YD/T839.1- 3.15 |
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4 |
Cone penetration 25℃ -40℃ |
1/10mm 1/10mm |
480±30 ≥100 |
YD/T839.1- 3.4.2 |
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5 |
Oxidation induction time (190℃) |
min |
≥30 |
YD/T839.1- 3.3.2 |
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6 |
Flashing point |
℃ |
>200 |
YD/T839.1- 3.4.3 |
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7 |
Hydrogen evolution (80℃、24h) |
μl/g |
≤0.03 |
YD/T839.1- Appendix G |
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8 |
Oil perspiring(80℃、24h) |
% |
≤2.0 |
YD/T839.1- Appendix A |
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9 |
Evaporation capacity (80℃、24h) |
% |
≤1.0 |
YD/T839.1- Appendix A |
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10 |
absorbency25℃(15g sample+ 10g water) |
min |
≤3 |
YD/T839.1- Appendix H |
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11 |
Degree of expansion 25℃(100g sample+ 50g water)5min 24h |
% % |
≥15 ≥70 |
YD/T839.1- Appendix H |
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11 |
Acid value |
mgK0H/g |
≤1.0 |
YD/T839.1- 3.2 |
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12 |
Water content |
% |
≤0.1 |
YD/T839.1- 3.9 |
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13 |
mpa.s |
10000±3000 |
YD/T839.1- 3.4.4 |
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14 |
compatibility:
A、with loose tube material (85℃、30×24h)
B、with loose tube material(85℃、30×24h)
variation in tensile strength elongation at break mass variation
C、Composite metal band (68℃、7×24h) Steel-plastic composite tape、Aluminum plastic compound tape |
% %
% % % |
No separation, no crack
≤25 ≤30 ≤3 No crack ≤25 ≤25 ≤15
No blistering、No separation |
YD/T839.1- Appendix D YD/T839.1- Appendix F
YD/T839.1- Appendix E
YD/T839.1- Appendix E YD/T839.1- Appendix E YD/T839.1- Appendix E
YD/T839.1-3.7-C |
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15 |
corrosive(80℃、14×24h) with copper, aluminum, steel |
|
No corrosion points |
YD/T839.1-3.5 |
Type |
matter |
Prohibitive content(mg/kg) |
Heavy metal |
plumbic |
≤1000 |
cadmium |
≤100 |
|
mercury |
≤1000 |
|
Hexavalent chromium |
≤1000 |
|
Organic Bromide |
Polybrominated biphenyls(PBB) |
≤1000 |
Polybrominated diphenyl ethers(PBDE) |
≤1000 |