EN ISO 11820:1996
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Acoustics - Measurements on silencers in situ (ISO 11820:1996)
Published date
12-15-1996
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1 Scope
2 Normative references
3 Definitions
4 Corrections for background noise
4.1 Transmission sound pressure level difference
4.2 Insertion sound pressure level difference
5 Installation conditions
6 Measuring instruments
6.1 Acoustic instruments
6.2 Air flow, static pressure and temperature
measuring devices
7 Test object and measuring conditions
8 Measurement procedures
8.1 General
8.2 Acoustic measurements
8.3 Flow, pressure and temperature measurements
9 Evaluation
9.1 Evaluation of sound pressure measurements
9.2 Evaluation of flow measurements
10 Information to be recorded
11 Information to be reported
Annexes
A Field corrections
B Calibration of directional microphones and microphones
equipped with a turbulence windscreen
C Bibliography
Applies to measurements on silencers in practical applications for acoustic analysis, acceptance tests and similar evaluations. Depending on the method used, the measurement is either of insertion loss or transmission loss.
| Committee |
CEN/TC 211
|
| DocumentType |
Standard
|
| PublisherName |
Comite Europeen de Normalisation
|
| Status |
Current
|
| Standards | Relationship |
| UNE-EN ISO 11820:1997 | Identical |
| I.S. EN ISO 11820:1997 | Identical |
| NF EN ISO 11820 : 1997 | Identical |
| SN EN ISO 11820 : 1997 | Identical |
| NEN EN ISO 11820 : 1997 | Identical |
| UNI EN ISO 11820 : 1999 | Identical |
| ISO 11820:1996 | Identical |
| NS EN ISO 11820 : 1ED 1997 | Identical |
| BS EN ISO 11820:1997 | Identical |
| PN EN ISO 11820 : 2000 | Identical |
| NBN EN ISO 11820 : 1997 | Identical |
| DIN EN ISO 11820:1997-04 | Identical |
| UNI EN 13684 : 2010 | GARDEN EQUIPMENT - PEDESTRIAN CONTROLLED LAWN AERATORS AND SCARIFIERS - SAFETY |
| PREN 12733 : DRAFT 2016 | AGRICULTURAL AND FORESTRY MACHINERY - PEDESTRIAN CONTROLLED MOTOR MOWERS - SAFETY |
| 03/306044 DC : DRAFT APR 2003 | BS EN 14656 - SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR EXTRUSION PRESSES FOR STEEL AND NON-FERROUS METALS |
| 03/306594 DC : DRAFT APR 2003 | BS EN 14681 - SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR MACHINERY AND EQUIPMENT FOR PRODUCTION OF STEEL BY ELECTRIC ARC FURNACE |
| 03/313810 DC : 0 | EN 14753 - SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR MACHINERY AND EQUIPMENT FOR THE CONTINUOUS CASTING OF STEEL |
| BS EN 14753:2007 | Safety of machinery. Safety requirements for machinery and equipment for continuous casting of steel |
| 15/30304107 DC : DRAFT MAY 2015 | BS EN 13684 - GARDEN EQUIPMENT - PEDESTRIAN CONTROLLED LAWN AERATORS AND SCARIFIERS - SAFETY |
| 16/30342849 DC : 0 | BS EN 12733 - AGRICULTURAL AND FORESTRY MACHINERY - PEDESTRIAN CONTROLLED MOTOR MOWERS - SAFETY |
| I.S. EN 15061:2007 | SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR STRIP PROCESSING LINE MACHINERY AND EQUIPMENT |
| DIN EN 13683:2013-08 | Garden equipment - Integrally powered shredders/chippers - Safety |
| DIN EN 13675:2010-10 | Safety of machinery - Safety requirements for tube forming and rolling mills and their finishing line equipment (includes Amendment A1:2010) |
| BS EN 14466 : 2005 | FIRE-FIGHTING PUMPS - PORTABLE PUMPS - SAFETY AND PERFORMANCE REQUIREMENTS, TESTS |
| I.S. EN 14910:2007 | GARDEN EQUIPMENT - WALK-BEHIND COMBUSTION ENGINE POWERED TRIMMERS - SAFETY |
| EN 13020:2015 | Road surface treatment machines - Safety requirements |
| DIN EN 15949:2012-05 | Safety of machinery - Safety requirements for bar mills, structural steel mills and wire rod mills |
| UNE-EN 13684:2005 | Garden equipment - Pedestrian controlled lawn aerators and scarifiers - Safety |
| 02/711111 DC : DRAFT SEP 2002 | PREN 415-7 - PACKAGING MACHINES SAFETY - PART 7: GROUP AND SECONDARY PACKAGING MACHINES |
| 03/306593 DC : DRAFT APR 2003 | BS EN 14673 - SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR HYDRAULICALLY POWERED HOT FORGING PRESSES FOR THE FORGING OF STEEL AND NON-FERROUS METALS |
| DIN EN 15093:2009-06 | Safety of machinery - Safety requirements for hot flat rolling mills |
| 15/30295265 DC : 0 | BS EN 13204 - DOUBLE ACTING HYDRAULIC RESCUE TOOLS FOR FIRE AND RESCUE SERVICE USE - SAFETY AND PERFORMANCE REQUIREMENTS |
| UNI EN 15093 : 2009 | SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR HOT FLAT ROLLING MILLS |
| 01/715188 DC : DRAFT NOV 2001 | PREN 774 - GARDEN EQUIPMENT - HAND HELD, INTEGRALLY POWERED HEDGE TRIMMERS - SAFETY |
| BS EN 15061 : 2007 | SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR STRIP PROCESSING LINE MACHINERY AND EQUIPMENT |
| UNI EN 15949 : 2012 | SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR BAR MILLS, STRUCTURAL STEEL MILLS AND WIRE ROD MILLS |
| DIN EN 14681:2010-10 | Safety of machinery - Safety requirements for machinery and equipment for production of steel by electric arc furnaces (includes Amendment A1:2010) |
| DIN EN 14466:2008-09 | FIRE FIGHTING PUMPS - PORTABLE PUMPS - SAFETY AND PERFORMANCE REQUIREMENTS, TESTS |
| DIN EN 14910:2009-08 | GARDEN EQUIPMENT - WALK-BEHIND COMBUSTION ENGINE POWERED TRIMMERS - SAFETY |
| DIN EN 14656:2010-10 | Safety of machinery - Safety requirements for extrusion presses for steel and non-ferrous metals (includes Amendment A1:2010) |
| BS EN 774:1996 | Garden equipment. Hand held, integrally powered hedge trimmers. Safety |
| BS EN 14673 : 2006 | SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR HYDRAULICALLY POWERED OPEN DIE HOT FORGING PRESSES FOR THE FORGING OF STEEL AND NON-FERROUS METALS |
| UNE-EN 13020:2016 | Road surface treatment machines - Safety requirements |
| BS EN 836 : 1997 | GARDEN EQUIPMENT - POWERED LAWNMOWERS - SAFETY |
| I.S. EN 14656:2006 | SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR EXTRUSION PRESSES FOR STEEL AND NON-FERROUS METALS |
| I.S. EN 1846-2:2009 | FIREFIGHTING AND RESCUE SERVICE VEHICLES - PART 2: COMMON REQUIREMENTS - SAFETY AND PERFORMANCE |
| I.S. EN 13683:2003 | GARDEN EQUIPMENT - INTEGRALLY POWERED SHREDDERS/CHIPPERS - SAFETY |
| I.S. EN 14681:2006 | SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR MACHINERY AND EQUIPMENT FOR PRODUCTION OF STEEL BY ELECTRIC ARC FURNACES |
| I.S. EN 13675:2004 | SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR TUBE FORMING AND ROLLING MILLS AND THEIR FINISHING LINE EQUIPMENT |
| I.S. EN 14466:2005 | FIRE FIGHTING PUMPS - PORTABLE PUMPS - SAFETY AND PERFORMANCE REQUIREMENTS, TESTS |
| I.S. EN 14673:2006 | SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR HYDRAULICALLY POWERED OPEN DIE HOT FORGING PRESSES FOR THE FORGING OF STEEL AND NON-FERROUS METALS |
| I.S. EN 13204:2016 | DOUBLE ACTING HYDRAULIC RESCUE TOOLS FOR FIRE AND RESCUE SERVICE USE - SAFETY AND PERFORMANCE REQUIREMENTS |
| I.S. EN 13020:2015 | ROAD SURFACE TREATMENT MACHINES - SAFETY REQUIREMENTS |
| BS EN 14677:2008 | Safety of machinery. Secondary steelmaking. Machinery and equipment for treatment of liquid steel |
| DIN EN 14677:2008-11 | SAFETY OF MACHINERY - SECONDARY STEEL MAKING - MACHINERY AND EQUIPMENT FOR TREATMENT OF LIQUID STEEL |
| 09/30175681 DC : 0 | BS EN 14656:2006/A1 - SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR EXTRUSION PRESSES FOR STEEL AND NON-FERROUS METALS |
| DIN EN 15061:2009-05 | Safety of machinery - Safety requirements for strip processing line machinery and equipment (includes Amendment A1:2008) |
| UNI EN 15094 : 2009 | SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR COLD FLAT ROLLING MILLS |
| I.S. EN 15949:2012 | SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR BAR MILLS, STRUCTURAL STEEL MILLS AND WIRE ROD MILLS |
| DIN EN 15094:2009-04 | Safety of machinery - Safety requirements for cold flat rolling mills |
| BS EN 15094:2008 | Safety of machinery. Safety requirements for cold flat rolling mills |
| UNI EN 14753 : 2008 | SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR MACHINERY AND EQUIPMENT FOR THE CONTINUOUS CASTING OF STEEL |
| DIN EN 14753:2008-03 | Safety of machinery - Safety requirements for machinery and equipment for continuous casting of steel |
| I.S. EN 14753:2007 | SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR MACHINERY AND EQUIPMENT FOR CONTINUOUS CASTING OF STEEL |
| I.S. EN 16774:2016 | SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR STEEL CONVERTER AND ASSOCIATED EQUIPMENT |
| I.S. EN 13684:2004 | GARDEN EQUIPMENT - PEDESTRIAN CONTROLLED LAWN AERATORS AND SCARIFIERS - SAFETY |
| DIN EN 13684:2015-05 (Draft) | GARDEN EQUIPMENT - PEDESTRIAN CONTROLLED LAWN AERATORS AND SCARIFIERS - SAFETY |
| EN 13684:2004+A3:2009 | Garden equipment - Pedestrian controlled lawn aerators and scarifiers - Safety |
| UNI EN 12733 : 2009 | AGRICULTURAL AND FORESTRY MACHINERY - PEDESTRIAN CONTROLLED MOTOR MOWERS - SAFETY |
| BS EN 13684 : 2004 | GARDEN EQUIPMENT - PEDESTRIAN CONTROLLED LAWN AERATORS AND SCARIFIERS - SAFETY |
| DIN EN 13020:2016-02 | ROAD SURFACE TREATMENT MACHINES - SAFETY REQUIREMENTS |
| DIN EN 14673:2010-10 | Safety of machinery - Safety requirements for hydraulically powered open die hot forging presses for the forging of steel and non-ferrous metals (includes Amendment A1:2010) |
| BS EN 13898 : 2003 | MACHINE TOOLS - SAFETY - SAWING MACHINES FOR COLD METAL |
| UNE-EN 13204:2017 | Double acting hydraulic rescue tools for fire and rescue service use - Safety and performance requirements |
| UNI EN 14677 : 2008 | SAFETY OF MACHINERY - SECONDARY STEELMAKING - MACHINERY AND EQUIPMENT FOR TREATMENT OF LIQUID STEEL |
| UNI EN 13683 : 2011 | GARDEN EQUIPMENT - INTEGRALLY POWERED SHREDDERS/CHIPPERS - SAFETY |
| UNI EN 1846-2 : 2013 | FIREFIGHTING AND RESCUE SERVICE VEHICLES - PART 2: COMMON REQUIREMENTS - SAFETY AND PERFORMANCE |
| UNI EN 14910 : 2010 | GARDEN EQUIPMENT - WALK-BEHIND COMBUSTION ENGINE POWERED TRIMMERS - SAFETY |
| UNI EN 15061 : 2009 | SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR STRIP PROCESSING LINE MACHINERY AND EQUIPMENT |
| UNI EN 14673 : 2010 | SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR HYDRAULICALLY POWERED OPEN DIE HOT FORGING PRESSES FOR THE FORGING OF STEEL AND NON-FERROUS METALS |
| UNI EN 14466 : 2008 | FIRE-FIGHTING PUMPS - PORTABLE PUMPS - SAFETY AND PERFORMANCE REQUIREMENTS, TESTS |
| UNI EN 14656 : 2010 | SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR EXTRUSION PRESSES FOR STEEL AND NON-FERROUS METALS |
| UNI EN 13898 : 2009 | MACHINE TOOLS - SAFETY - SAWING MACHINES FOR COLD METAL |
| EN 13204:2016 | Double acting hydraulic rescue tools for fire and rescue service use - Safety and performance requirements |
| UNI EN 836 : 2011 | GARDEN EQUIPMENT - POWERED LAWNMOWERS - SAFETY |
| UNI EN 13675 : 2010 | SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR TUBE FORMING AND ROLLING MILLS AND THEIR FINISHING LINE EQUIPMENT |
| UNI EN 14681 : 2010 | SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR MACHINERY AND EQUIPMENT FOR PRODUCTION OF STEEL BY ELECTRIC ARC FURNACES |
| BS EN 15093:2008 | Safety of machinery. Safety requirements for hot flat rolling mills |
| BS EN 15949:2012 | Safety of machinery. Safety requirements for bar mills, structural steel mills and wire rod mills |
| 14/30302903 DC : 0 | BS EN 16774 - SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR STEEL CONVERTER AND ASSOCIATED EQUIPMENT |
| 09/30175684 DC : 0 | BS EN 14673:2006/A1 - SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR HYDRAULICALLY POWERED OPEN DIE HOT FORGING PRESSES FOR THE FORGING OF STEEL AND NON-FERROUS METALS |
| PREN 13684 : DRAFT 2015 | GARDEN EQUIPMENT - PEDESTRIAN CONTROLLED LAWN AERATORS AND SCARIFIERS - SAFETY |
| 04/30123607 DC : DRAFT OCT 2004 | EN 15061:2004 - SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR STRIP PROCESSING LINE MACHINERY AND EQUIPMENT |
| PREN 13204 : DRAFT 2015 | DOUBLE ACTING HYDRAULIC RESCUE TOOLS FOR FIRE AND RESCUE SERVICE USE - SAFETY AND PERFORMANCE REQUIREMENTS |
| 05/30131998 DC : 0 | BS EN 15180 - FOOD PROCESSING MACHINERY - FORMING MACHINES - SAFETY AND HYGIENE REQUIREMENTS |
| 03/109865 DC : DRAFT JULY 2003 | BS EN 415-6 - PACKAGING MACHINES SAFETY - PART 6: PALLET WRAPPING MACHINES |
| 04/30124187 DC : 0 | PREN 415-8 - SAFETY OF PACKAGING MACHINES - PART 8: STRAPPING MACHINES |
| BS EN 16774:2016 | Safety of machinery. Safety requirements for steel converter and associated equipment |
| BS EN 12733 : 2001 | AGRICULTURAL AND FORESTRY MACHINERY - PEDESTRIAN CONTROLLED MOTOR MOWERS - SAFETY |
| I.S. EN 15094:2008 | SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR COLD FLAT ROLLING MILLS |
| I.S. EN 12733:2001 | AGRICULTURAL AND FORESTRY MACHINERY - PEDESTRIAN CONTROLLED MOTOR MOWERS - SAFETY |
| DIN EN 836:2012-07 | GARDEN EQUIPMENT - POWERED LAWNMOWERS - SAFETY |
| BS EN 13675 : 2004 | SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR TUBE FORMING AND ROLLING MILLS AND THEIR FINISHING LINE EQUIPMENT |
| BS EN 13683 : 2003 | GARDEN EQUIPMENT - INTEGRALLY POWERED SHREDDERS/CHIPPERS - SAFETY |
| BS EN 13204 : 2004 | DOUBLE ACTING HYDRAULIC RESCUE TOOLS FOR FIRE AND RESCUE SERVICE USE - SAFETY AND PERFORMANCE REQUIREMENTS |
| BS EN 1746:1999 | Safety of machinery. Guidance for the drafting of the noise clauses of safety standards |
| ISO 14163:1998 | Acoustics — Guidelines for noise control by silencers |
| UNE-EN 1846-2:2011 | Firefighting and rescue service vehicles - Part 2: Common requirements - Safety and performance |
| BS EN 1846-2 : 2009 | FIREFIGHTING AND RESCUE SERVICE VEHICLES - PART 2: COMMON REQUIREMENTS - SAFETY AND PERFORMANCE |
| BS EN ISO 14163:1998 | Acoustics. Guidelines for noise control by silencers |
| EN 16774:2016 | Safety of machinery - Safety requirements for steel converter and associated equipment |
| EN 13675:2004+A1:2010 | Safety of machinery - Safety requirements for tube forming and rolling mills and their finishing line equipment |
| EN 14466:2005+A1:2008 | Fire-fighting pumps - Portable pumps - Safety and performance requirements, tests |
| EN 14656:2006+A1:2010 | Safety of machinery - Safety requirements for extrusion presses for steel and non-ferrous metals |
| EN 15094:2008 | Safety of Machinery - Safety requirements for cold flat rolling mills |
| EN 14910:2007+A1:2009 | Garden equipment - Walk-behind combustion engine powered trimmers - Safety |
| EN 15061:2007+A1:2008 | Safety of machinery - Safety requirements for strip processing line machinery and equipment |
| EN 15949:2012 | Safety of machinery - Safety requirements for bar mills, structural steel mills and wire rod mills |
| EN 15093:2008 | Safety of Machinery - Safety requirements for hot flat rolling mills |
| EN 14681:2006+A1:2010 | Safety of machinery - Safety requirements for machinery and equipment for production of steel by electric arc furnaces |
| EN 774:1996/A3:2001 | GARDEN EQUIPMENT - HAND HELD, INTEGRALLY POWERED HEDGE TRIMMERS - SAFETY |
| EN 14673:2006+A1:2010 | Safety of machinery - Safety requirements for hydraulically powered open die hot forging presses for the forging of steel and non-ferrous metals |
| EN 14753:2007 | Safety of machinery - Safety requirements for machinery and equipment for continuous casting of steel |
| EN 14677:2008 | Safety of machinery - Secondary steelmaking - Machinery and equipment for treatment of liquid steel |
| EN ISO 14163:1998 | Acoustics - Guidelines for noise control by silencers (ISO 14163:1998) |
| EN 1846-2:2009+A1:2013 | Firefighting and rescue service vehicles - Part 2: Common requirements - Safety and performance |
| EN 836:1997+A4:2011 | Garden equipment - Powered lawnmowers - Safety |
| DIN EN 12733:2016-08 (Draft) | AGRICULTURAL AND FORESTRY MACHINERY - PEDESTRIAN CONTROLLED MOTOR MOWERS - SAFETY |
| 02/540559 DC : DRAFT JULY 2002 | EN 14466 - FIRE FIGHTING PUMPS - PORTABLE PUMPS - SAFETY AND PERFORMANCE REQUIREMENTS, TESTS |
| I.S. EN 774:1996 | GARDEN EQUIPMENT - HAND HELD, INTEGRALLY POWERED HEDGE TRIMMERS - SAFETY |
| 04/30111716 DC : DRAFT MAR 2004 | EN 14910 - GARDEN EQUIPMENT - WALK-BEHIND COMBUSTION ENGINE POWERED TRIMMERS - SAFETY |
| 09/30180832 DC : DRAFT AUG 2009 | BS EN 13675 AMD1 - SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR TUBE FORMING AND ROLLING MILLS AND FINISHING LINE EQUIPMENT |
| I.S. EN 15093:2008 | SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR HOT FLAT ROLLING MILLS |
| 09/30201995 DC : 0 | BS EN 15949 - SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR BAR MILLS, STRUCTURAL STEEL MILLS AND WIRE ROD MILLS |
| 03/306595 DC : 0 | BS EN 14677 - SAFETY OF MACHINERY - SECONDARY STEELMAKING - MACHINERY AND EQUIPMENT FOR TREATMENT OF LIQUID STEEL |
| I.S. EN 14677:2008 | SAFETY OF MACHINERY - SECONDARY STEELMAKING - MACHINERY AND EQUIPMENT FOR TREATMENT OF LIQUID STEEL |
| EN 12733:2001+A1:2009 | Agricultural and forestry machinery - Pedestrian controlled motor mowers - Safety |
| BS EN 13020:2015 | Road surface treatment machines. Safety requirements |
| BS EN 14656 : 2006 | SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR EXTRUSION PRESSES FOR STEEL AND NON-FERROUS METALS |
| BS EN 14681 : 2006 | SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR MACHINERY AND EQUIPMENT FOR PRODUCTION OF STEEL BY ELECTRIC ARC FURNACES |
| BS EN 14910 : 2007 | GARDEN EQUIPMENT - WALK-BEHIND COMBUSTION ENGINE POWERED TRIMMERS - SAFETY |
| DIN EN 1846-2:2013-05 | Firefighting and rescue service vehicles - Part 2: Common requirements - Safety and performance (includes Amendment A1:2013) |
| DIN EN 13898:2009-09 | MACHINE TOOLS - SAFETY - SAWING MACHINES FOR COLD METAL |
| DIN EN 836 A1 : 1998 | GARDEN EQUIPMENT - POWERED LAWNMOWERS - SAFETY |
| ISO 3744:2010 | Acoustics Determination of sound power levels and sound energy levels of noise sources using sound pressure Engineering methods for an essentially free field over a reflecting plane |
| ISO 5221:1984 | Air distribution and air diffusion Rules to methods of measuring air flow rate in an air handling duct |
| UNE-EN 15093:2008 | Safety of Machinery - Safety requirements for hot flat rolling mills (Endorsed by AENOR in November of 2008.) |
| IEC 60651:1979+AMD1:1993+AMD2:2000 CSV | Sound level meters |
| IEC 60804:2000 | Integrating-averaging sound level meters |
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