2. APPLICABLE STANDARDS
IS: 4905
Poly Carbonate Plastic Seal, form ISO Certified manufacture (ISO 9000 and ISO 14000)
3. CLIMATIC CONDITIONS
The Poly Carbonate Plastic Seal shall be suitable for satisfactorily working under the following climatic conditions: -
Max. Ambient Temperature |
600 C |
Min. Ambient Temperature |
-50 C |
Max. Relative Humidity |
100% |
Min. Relative Humidity |
23% |
Altitude |
Within 1000 meters above mean seal level. |
The Poly Carbonate Plastic Seal shall be suitably designed and treated for normal life and satisfactory operation under the hot and hazardous tropical climate conditions.
4. DESIGN AND CONSTRUCTION OF SEAL
4.1 GENERAL CONSTRUCTION.
The seal shall be designed for a single use only. The seal shall be damaged, due to its see through property, if tampered with the help of puller, knife or any other sharp instruments. The sign of internal tampering shall be easily detected; it should not be reused, once opened. The seal shall be made in such a way that it can be easily locked with the help of finger and thumb pressing and no tools shall be required to close the seal in the laboratory or at site. After inserting the seal wire through hole of female part, the cap of the male part shall be fitted in the female part in such a way that it should not leave any space to avoid insertion of any sharp tools for opening of seal body or the female part in hot or cold condition. The seal shall also have the following features: -
4.1.1 Tamper resistant and reliable.
4.1.2 Environmentally safe, should not contain any lead (pb).
4.1.3 Withstand long-term exposure to direct sunlight.(UV Resistance)
4.1.4 No tools required for installation.
4.1.5 Transparent and see through body reveals.
4.1.6 Heat resistant.
4.1.7 Chemical resistant. |
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4.2 MATERIAL OF PLATIC SEAL
The raw material used for polycarbonate plastic seals shall be M/s Dow Caller Ltd. Switzerland (Grade 201-15), M/s GE Plastic Singapore (Grade 143 R), M/s Bayer Plastic 2407 Grade (UV Stabilized) or any other equivalent manufacture having similar material properties as under:-
Sr.No. |
Material Description |
Particulars Polycarbonate |
1 |
Melting temperature |
2800 C to 2950 C |
2 |
Specific gravity |
1.20 at 270 C |
3 |
Use |
Engineering |
4 |
Size |
33 x 23 x 5 + 0.5 mm. tolerance |
5 |
Softness |
Hard |
6 |
Durability |
Weather effect resistant (UV Resistant) |
7 |
Transparency |
Fully transparent (for the life of the seal) |
4.3 COLOR OF SEAL.
The seal body will be colorless, transparent (see through) type, which shall give complete visualization of its fixing mechanism and shall show clear indication if tampered with. Also seal’s anchor can be of different colour like Red, Blue, Yellow, Green and Orange etc for necessary area wise applicable colour coding i.e. two different colours in same seal, which makes seal unique.
4.4 SPECIAL SIX LEVEL SECURITY FEATURES.
4.4.1 Quadra locking mechanism with 8 anchors.
4.4.2 Micro text matter/symbol readable with magnifying lens at minimum four places.(neon text coding)
4.4.3 Special colour codes (weather resistant)
4.4.4 Ultra violet numbering and logo thermo laser printing type (not screen printed) visible only by UV light torch i.e. UV readable number and logo inside of the anchor part of seal. The expected life of UV numbering is guaranteed for 10 years in any conditions.
4.4.5 Thermo engraved (itching type) with contrast colour serial no. at two points i.e. unique type numbering on anchor and female part positions with special Psychological effect (German technology)
4.4.6 Seven stand lace wire connected with male and female part of seal.(Inox 304 grade) |
