IS 6318:1971 is the Indian Standard (BIS) for hydraulic door closers (with or without check action). This standard specifies the requirements for materials, dimensions, manufacture, performance, and testing of hydraulic door closers, both with and without a back-check feature. It primarily covers surface-mounted rack and pinion type closers used in various building applications.
Specifies requirements for hydraulic door closers for controlling door movement.
BIM-relevant code. See the BIM Hub for ISO 19650, IFC, and LOD/LOIN frameworks used alongside it.
| Parameter | IS Value | International | Source |
|---|---|---|---|
| Endurance Test Cycles | 100,000 cycles | 500,000 cycles | EN 1154 |
| Endurance Test Cycles (Highest Grade) | 100,000 cycles | 2,000,000 cycles (Grade 1) | ANSI/BHMA A156.4 |
| Power Classification | By duty (Light, Medium, Heavy) and size (Type 1, 2) | By power size (1-7) based on closing moment in Nm and door width | EN 1154 |
| Fire Resistance Suitability | Not explicitly defined or tested as a separate category. | Mandatory classification digit (Grade 1 for suitable, Grade 0 for not suitable) | EN 1154 |
| Corrosion Resistance | General requirement for finish quality, no specified test duration. | Graded based on hours in Neutral Salt Spray test (e.g., 96 hours for Grade 3) | EN 1154 (via EN 1670) |
| Mechanical Efficiency | Not specified or measured. | Minimum 55-65% efficiency (opening force vs closing moment) depending on size. | EN 1154 |
| Maximum Closing Time (from 90°) | Shall not exceed 8 seconds. | Must be adjustable; for accessibility, times are often much longer (e.g., must take at least 3-5 seconds to close from 70° to 0°). | ANSI/BHMA A156.4 |