Flexible insulating sleeving - Specifications for individual types of sleeving. Sheet 216: Heat-shrinkable, flame-retarded, limited-fire-hazard sleeving Ingestion-build-96603 BS 3446-1 on refractory materials

BS 3446-1 on refractory materials - general and manufacturing is useful for:

a lower compression strain is used: 15 % for a nominal hardness from 80 IRHD to 89 IRHD and 10 % for a nominal hardness from 90 IRHD to 95 IRHD

By selecting the right materials and adopting ISO 1452-3-compliant recommendations for PVC-U fittings

— phosphorous(V) oxide (P2O5)

which contain product specific requirements

Flexible insulating sleeving - Specifications for individual types of sleeving. Sheet 216: Heat-shrinkable, flame-retarded, limited-fire-hazard sleeving Ingestion-build-96603 BS 3446-1 on refractory materials1 Scope This part of IEC 606843 gives the requirements for four types of heat shrinkable, flame retarded, limited fire hazard sleeving with a thermal endurance rating of 105 C as shown below. Class A: thin wall shrink ratio 2: 1 internal diameter up to 102,0 mm Class B: medium wall shrink ratio 2: 1 internal diameter up to 60,0 mm Class C: thick wall shrink ratio 2: 1 internal diameter up to 51,0 mm Class D: medium wall shrink ratio 3: 1 internal