IS 14951:2001 is the Indian Standard (BIS) for fire extinguisher - 135 litres capacity mechanical foam type. This standard specifies the requirements for materials, construction, performance, and testing of 135-litre capacity wheeled mechanical foam fire extinguishers. These are used for fighting large Class A and Class B fires in high-risk environments like industrial plants and aircraft hangars.
Fire Extinguisher - 135 Litres Capacity Mechanical Foam Type
| Parameter | IS Value | International | Source |
|---|---|---|---|
| Nominal Capacity | 135 Litres (fixed) | Variable size range (e.g., 50L, 100L, 150L); performance-based rating. | ISO 11601:2017 |
| Fire Performance Rating | 40B (3.71 m² petrol fire) | Performance-based rating (e.g., 233B for a ~100L unit), which is a 7.32 m² heptane fire. | EN 1866-1:2007 |
| Body Hydrostatic Test Pressure | 2.5 MPa | Calculated value, e.g., 1.43 x Max Service Pressure (PMS), typically resulting in a higher test pressure. | EN 1866-1:2007 |
| Body Burst Pressure (Minimum) | 4.5 MPa | Calculated value (e.g., 2.7 x PMS) but not less than 5.5 MPa. | ISO 11601:2017 |
| Minimum Effective Discharge Time | 180 seconds | Depends on fire rating achieved (e.g., ≥ 60 seconds for a 233B rating). | ISO 11601:2017 |
| Minimum Throw (Jet Length) | 15 metres | Not specified; performance is demonstrated by passing the fire test. | EN 1866-1:2007 |
| Operating Temperature Range | +5 °C to +55 °C | Standard range is typically +5 °C to +60 °C, with specific classes for low temperatures. | EN 1866-1:2007 |