Part 1Definitions

Locations, Non-Industrial — Part 8/Section 2

Loft — Part 3

Loose Grain (Loosened Grain) — Part 6/Section 3A

Loose Knot — Part 6/Section 3A

Lower Inner Decking — Part 8/Section 5B

Lower Outer Decking — Part 8/Section 5B

Low Rise Building — Part 6/Section 1

Low-Voltage Switchgear and Controlgear Assembly—Part 8/Section 2

Lumen — Part 8/Section 1

Luminaire — Part 8/Section 2

Luminance (at a Point of a Surface in a Given Direction) (Brightness) — Part 8/Section 1

Luminous Flux — Part 8/Section 1

M

M2M — Part 8/Section 6

Machete — Part 6/Section 3B

Machinery — Part 8/Section 5B

Machinery Spaces — Part 8/Section 5B

Maximum Capacity — Part 8/Section 5B

Made-Up Ground — Part 6/Section 2

Main Cross-connect — Part 8/Section 6

Main Distribution Frame (MDF) — Part 8/Section 6

Main Drain — Part 9/Section 1

Main Earthing Terminal — Part 8/Section 2

Main Member — Part 6/Section 6

Main Soil Pipe (MSP) — Part 9/Section 2

Main Soil and Waste Pipe (MSWP) — Part 9/Section 2

Main Vent Pipe (MVP) — Part 9/Section 2

Main Waste Pipe (MWP) — Part 9/Section 2

Maintenance — Part 12

Maintenance Factor — Part 8/Section 1

Maintenance Management — Part 12

Maintenance Manual — Part 12

Maintenance Organization — Part 8/Section 5A

Maintenance Plan — Part 12

Maintenance Policy — Part 12

Maintenance Programme — Part 12

Maintenance Strategy — Part 12

Make-Up Air — Part 8/Section 1

Make-Up Water — Part 9/Section 1

Management System — Part 12

Manhole — Part 9/Section 2

Manhole Chamber — Part 9/Section 2

Manifestation — Part 6/Section 8

Manifold — Part 9/Section 4

Manoeuvring Zone — Part 3

Mansard — Part 10/Section 2

Mantrap — Part 12 Marquee Sign— Part 10/Section 2 Masonry — Part 6/Section 4 Masonry Unit — Part 6/Section 4 Mass Rapid Transit — Part 4 Master Plan — Part 3 Mat — Part 6/Section 3B Material Handling Hoists — Part 7 Maximum Thickness — Part 6/Section 8 Mean Ground Level — Part 6/Section 1 Mean Outer Diameter — Part 6/Section 3B Mean Radiant Temperature — Part 8/Section 3 Mean Wall Thickness — Part 6/Section 3B Means of Egress — Part 4 Means of Escape — Part 4 Measured Speed — Part 8/Section 5B Mechanical Ventilation — Part 8/Section 1 Mechanically Laminated — Part 6/Section 3A Mercantile Buildings — Part 6/Section 1 Meridian — Part 8/Section 1 Meshed Bonding Network (MESH-BN) — Part 8/Section 2 Metropolitan Area Network (MAN) — Part 8/Section 6 Mezzanine Floor — Part 3 Metro-station — Part 4 Microclimate — Part 10/Section 1 Mill Tolerance — Part 6/Section 6 Miniature Circuit Breaker (MCB) — Part 8/Section 2 Minimum Thickness — Part 6/Section 8 Mixed Mode Building — Part 8/Section 3 Mixed Occupancy — Part 4 Mobile Equipment — Part 8/Section 2 Modal Mass in Mode of a Structure — Part 6/Section 1 Modal Participation Factor — Part 6/Section 1 Modes of Oscillation — Part 6/Section 1 Modular Co-ordination — Part 6/Section 7A, Part 6/Section 7B Modular Grid — Part 6/Section 7A, Part 6/Section 7B Module — Part 6/Section 7A, Part 6/Section 7B Modulus of Elasticity (Young's Modulus) — Part 6/Section 8 Moment Resistant Frame — Part 6/Section 4 Moment Resistant Frame with Shear Walls — Part 6/Section 4 Monitoring — Part 8/Section 2 Monolithic Glass — Part 6/Section 8 Mortise and Tenon — Part 6/Section 3B Mould — Part 6/Section 3A

Moulded Case Circuit Breaker (MCCB) — Part 8/Section 2 Mound — Part 10/Section 1 Moving Walk — Part 8/Section 5B Mulching — Part 10/Section 1 Mullion — Part 6/Section 8 Multichannel Multipoint Distribution System (MMDS) — Part 8/Section 6 Multimodule — Part 6/Section 7A, Part 6/Section 7B Multiple Earthed Neutral System — Part 8/Section 2 Multiple Occupancy — Part 4 Multi-User Telecommunications Outlet Assembly (MUTOA) — Part 8/Section 6 Municipal Authority — Part 9/Section 3 Municipal Solid Waste — Part 9/Section 3

Native Plant — Part 10/Section 1 Natural Period in Mode of Oscillation — Part 6/Section 1 Natural Ventilation — Part 8/Section 1 Naturalised Plant — Part 10/Section 1 Naturally Conditioned Building — Part 8/Section 3 Negative Skin Friction — Part 6/Section 2 Net Section — Part 6/Section 3B Neutral Conductor — Part 8/Section 2 Newel — Part 8/Section 5B Node — Part 6/Section 3B Noise — Part 8/Section 4 Noise Exposure Forecast (NEF) — Part 8/Section 4 Noise Criteria — Part 8/Section 4 Noise Rating (NR) — Part 8/Section 4 Noise Reduction Co-efficient (NRC) — Part 8/Section 4 Nominal/Rated Speed — Part 8/Section 5B Nominal Thickness — Part 6/Section 8 Nominal Travel Time — Part 8/Section 5A Non-Combustible Material — Part 6/Section 8 Non-Renewable Resource — Part 11 Non-Selective Collective Automatic Operation — Part 8/Section 5A Non-transit Occupancy — Part 4 Normal Mode of Oscillation — Part 6/Section 1 Normal Operation — Part 8/Section 5A Normal Stress — Part 6/Section 6 Normalized Impact Sound Pressure Level — Part 8/Section 4 North and South Points — Part 8/Section 1

Occupancy or Use Group — Part 2, Part 3, Part 4

The principal occupancy for which a building or a part of a building is used or intended to be used; for the purposes of classification of a building according to occupancy, an occupancy shall be deemed to include the subsidiary occupancies which are contingent upon it.

Occupant Load — Part 4

Occupants — Part 12

Occupier — Part 2

Octave Band — Part 8/Section 4

Office Buildings — Part 6/Section 1

*Offset — Part 6/Section 2, Part 9/Section 1, Part 9/Section 2

Oil Buffer — Part 8/Section 5A

Oil Buffer Stroke — Part 8/Section 5A

Open Clusters — Part 3

Open Sign — Part 10/Section 2

Open Space — Part 3

Open Space, Front — Part 3

Open Space, Rear — Part 3

Open Space, Side — Part 3

Open Station — Part 4

Operable Parts — Part 3

Operating Device — Part 8/Section 5A

Operation — Part 8/Section 5A

Operational Construction/Installation — Part 2

Operational Plan — Part 12

Operational Strategy — Part 12

Operative Temperature — Part 8/Section 3

Operator of a Facility — Part 9/Section 3

Optical Distribution Frame — Part 8/Section 6

Optical Fibre — Part 8/Section 6

Orientation of Buildings — Part 8/Section 1

Organic Coated Glass — Part 6/Section 8

Origin of an Electrical Installation — Part 8/Section 2

Outer Diameter — Part 6/Section 3B

Outside Location — Part 6/Section 3A, Part 6/Section 3B

Outside Plant (OSP) — Part 8/Section 6

Overcurrent — Part 8/Section 2

Overload Current (of a Circuit) — Part 8/Section 2

Over Speed Governor — Part 8/Section 5A

Overhead Beams — Part 8/Section 5A

Owner — Part 0, Part 2, Part 3, Part 10/Section 2

A person, a group of persons or a body having a legal interest in land and/or building thereon. This includes

freeholders, leaseholders or those holding a sub-lease who will have legal right to occupation and have liabilities in respect of safety or building condition.

In case of lease or sub-lease holders, as far as ownership with respect to the structure is concerned, the structure of a flat or structure on a plot belongs to the allottee/lessee till the allotment/lease subsists.

* Definitions are different.

Ozone Depletion Potential (ODP) — Part 8/Section 3

Pane — Part 6/Section 8

Panel — Part 6/Section 8

Panel Wall — Part 6/Section 4

Parapet — Part 3, Part 10/Section 2

Parking Space — Part 3

Partial Safety Factor — Part 6/Section 6

Partition — Part 3, Part 6/Section 8

Partition Wall — Part 6/Section 4

Partly Framed or Unframed Glazing — Part 6/Section 8

Passenger Arrival Rate — Part 8/Section 5A

Passenger Average Transfer — Part 8/Section 5A

Passenger Average Waiting Time (AWT) — Part 8/Section 5A

Passenger Lift — Part 8/Section 5A

Passive Cooling — Part 8/Section 3

Passive Heating — Part 8/Section 3

Passive Solar Gain — Part 6/Section 8

Patterned Glass — Part 6/Section 8

Peak Ground Acceleration — Part 6/Section 1

Peak Gust — Part 6/Section 1

Peak to Peak Vibration Levels — Part 8/Section 5A

Peat — Part 6/Section 2

Pelletization — Part 9/Section 3

Percentile Level — Part 8/Section 4

Perimeter Intrusion Detection and Assessment System

(PIDAS) — Part 12

Perimeter Security — Part 12

Period of Structural Adequacy under Fire — Part 6/Section 6

Period of Supply — Part 9/Section 1

Peripheral Field — Part 8/Section 1

Permanent Load — Part 6/Section 2

Permeable Paving- Part 10/Section 1

Permissible Stress — Part 6/Section 3A, Part 6/

Section 3B, Part 6/Section 6

Permit — Part 2

PART 1 DEFINITIONS

Persons with Disabilities — Part 3

PEN Conductor — Part 8/Section 2

Phase Conductor — Part 8/Section 2

Physical Asset — Part 12

Pier — Part 6/Section 4

Pile Foundation — Part 6/Section 2

Pile Rig — Part 7

Pile Spacing — Part 6/Section 2

Pilot — Part 9/Section 4

Pink Noise — Part 8/Section 4

Pipe System — Part 9/Section 2

Pipe Work — Part 9/Section 1

Pit — Part 8/Section 5B

Pitch — Part 6/Section 6

Pitch Pocket — Part 6/Section 3A

Place of Comparative Safety — Part 4

Planned Preventive Maintenance — Part 12

Platform — Part 7

Plastic Collapse — Part 6/Section 6

Plastic Design — Part 6/Section 6

Plastic Hinge — Part 6/Section 6

Plastic Moment — Part 6/Section 6

Plastic Section — Part 6/Section 6

Plenum — Part 8/Section 3

Plinth — Part 3

The portion of a structure between the surface of the surrounding ground and surface of the floor, immediately above the ground.