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Low Combustion Hazard (LCH) Solid

 

 

Grade: 72 LCH1

Temperature Range: -60°C to 230°C

 

 

AVAILABILITY

72 LCH1 is available in the form of sheeting, mouldings, profile extrusions and can also be used to manufacture insulation for cables. It is particularly suited to use in engineering applications where public safety is a main concern. There is a wide range of standard colours available; although not all colours can be matched Silicone Engineering has a large amount of experience at being able to produce these materials in colours that are tailored to customer requirements.

 

SPECIFICATIONS

72 LCH1 satisfies the BS 6853 Category 1a requirements and meets the requirements of the LUL Code of Practice for Fire Safety (Materials used in the Underground; August 1990.)

72LCH1 has been tested to NF F 16-101by Laboratoire De Trappes, and has been accredited with I2 and F0 classification.

                                                                               

FLAMMABILITY CHARACTERISTICS OF UNPIGMENTED MATERIAL

 

Property

BS 6853
Category 1a

72 LCH1

Temperature Index

>300°C

341°C

Flame Length

<50 mm

<50 mm

Limiting Oxygen Index

>34%

34.7

Ao Smoke Index

<0.017

0.0162

 

NFF Test

NFF Test Method

72 LCH1

Smoke index

NFX 10.702

10.4

Conventional Index of toxicity

NFX 70.100

6.28

Class

-

F1

Glow wire Test

NFC 20.455

Classified I2*

*Class I2 = Oxygen limit of more than or equal to 32% and no ignition at 850oC glow wire

Environmental Resistance
Silicone rubber products have an excellent resistance to ozone, oxidation, ultraviolet light, corona discharge, cosmic radiation, ionising radiation and weathering in general.


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