EN 13175:2014
Superseded
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
LPG EQUIPMENT AND ACCESSORIES - SPECIFICATION AND TESTING FOR LIQUEFIED PETROLEUM GAS (LPG) PRESSURE VESSEL VALVES AND FITTINGS
Superseded date
01-05-2019
Published date
12-01-2013
Publisher
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Operating conditions
5 Materials
6 Design - general requirements
7 Design - specific requirements
8 Testing of the design
9 Production testing
10 Marking
11 Documentation
12 Packaging
Annex A (normative) - ACME connections
Annex B (normative) - Special low temperature
requirements for valves
Annex C (informative) - Inspection of 3 [1/4] inch
ACME Couplings
Annex D (normative) - Dry disconnect couplings
Annex E (normative) - Production testing and inspection
Annex ZA (informative) - Relationship between
this European Standard and the Essential
Requirements of EU Directive 97/23/EC
Bibliography
Defines minimum requirements for the design, testing and production testing of valves, including appropriate fittings, which are connected to mobile or static LPG pressure vessels above 150 l water capacity.
| Committee |
TC 286
|
| DocumentType |
Standard
|
| PublisherName |
Comite Europeen de Normalisation
|
| Status |
Superseded
|
| SupersededBy |
| Standards | Relationship |
| NS EN 13175 : 2014 | Identical |
| PN EN 13175 : 2015 | Identical |
| NEN EN 13175 : 2014 | Identical |
| ONORM EN 13175 : 2015 | Identical |
| I.S. EN 13175:2014 | Identical |
| BS EN 13175:2014 | Identical |
| SN EN 13175 : 2015 | Identical |
| UNE-EN 13175:2015 | Identical |
| NF EN 13175 : 2015 | Identical |
| SS-EN 13175:2019 | Identical |
| DIN EN 13175:2015-02 | Identical |
| NBN EN 13175 : 2014 | Identical |
| I.S. EN 13175:2019 | Identical |
| UNI EN 13175 : 2015 | Identical |
| DIN EN ISO 15995:2010-11 | GAS CYLINDERS - SPECIFICATIONS AND TESTING OF LPG CYLINDER VALVES - MANUALLY OPERATED |
| 12/30263594 DC : 0 | BS EN 14570 - LPG EQUIPMENT AND ACCESSORIES - EQUIPPING OF OVERGROUND AND UNDERGROUND LPG VESSELS |
| 10/30216074 DC : 0 | BS EN 14334 - LPG EQUIPMENT AND ACCESSORIES - INSPECTION AND TESTING OF LPG ROAD TANKERS |
| 10/30227671 DC : 0 | BS EN 14678-1 - LPG EQUIPMENT AND ACCESSORIES - CONSTRUCTION AND PERFORMANCE OF LPG EQUIPMENT FOR AUTOMOTIVE FILLING STATIONS - PART 1: DISPENSERS |
| 12/30250279 DC : 0 | BS EN 12252 - LPG EQUIPMENT AND ACCESSORIES - EQUIPPING OF LPG ROAD TANKERS |
| UNE-EN 16119:2013 | LPG equipment and accessories - Sealing caps and plugs for LPG cylinder and pressure vessel valves - Specification and testing |
| EN ISO 14245:2010 | Gas cylinders - Specifications and testing of LPG cylinder valves - Self-closing (ISO 14245:2006) |
| DIN EN 14678-2:2012-04 | LPG equipment and accessories - Construction and performance of LPG equipment for automotive filling stations - Part 2: Components other than dispensers and installation requirements (includes Amendment A1:2012) |
| UNE-EN 14334:2015 | LPG equipment and accessories - Inspection and testing of LPG road tankers |
| UNE-EN 14432:2015 | Tanks for the transport of dangerous goods - Tank equipment for the transport of liquid chemicals and liquefied gases - Product discharge and air inlet valves |
| DIN EN 14893:2014-09 | LPG EQUIPMENT AND ACCESSORIES - TRANSPORTABLE LIQUEFIED PETROLEUM GAS (LPG) WELDED STEEL PRESSURE DRUMS WITH A CAPACITY BETWEEN 150 LITRES AND 1000 LITRES |
| BS EN 14678-2 : 2007 | LPG EQUIPMENT AND ACCESSORIES - CONSTRUCTION AND PERFORMANCE OF LPG EQUIPMENT FOR AUTOMOTIVE FILLING STATIONS - PART 2: COMPONENTS OTHER THAN DISPENSERS AND INSTALLATION REQUIREMENTS |
| UNE-EN 14433:2015 | Tanks for the transport of dangerous goods - Tank equipment for the transport of liquid chemicals and liquefied gases - Foot valves |
| I.S. EN 14433:2014 | TANKS FOR THE TRANSPORT OF DANGEROUS GOODS - TANK EQUIPMENT FOR THE TRANSPORT OF LIQUID CHEMICALS AND LIQUEFIED GASES - FOOT VALVES |
| I.S. EN 14678-2:2007 | LPG EQUIPMENT AND ACCESSORIES - CONSTRUCTION AND PERFORMANCE OF LPG EQUIPMENT FOR AUTOMOTIVE FILLING STATIONS - PART 2: COMPONENTS OTHER THAN DISPENSERS AND INSTALLATION REQUIREMENTS |
| DIN EN 16119:2013-05 | LPG equipment and accessories - Sealing caps and plugs for LPG cylinder and pressure vessel valves - Specification and testing |
| DIN EN ISO 14245:2010-11 | GAS CYLINDERS - SPECIFICATIONS AND TESTING OF LPG CYLINDER VALVES - SELF-CLOSING |
| BS EN ISO 15995:2010 | Gas cylinders. Specifications and testing of LPG cylinder valves. Manually operated |
| 13/30248693 DC : 0 | BS EN 14893 - LPG EQUIPMENT AND ACCESSORIES - TRANSPORTABLE LIQUEFIED PETROLEUM GAS (LPG) WELDED STEEL PRESSURE DRUMS WITH A CAPACITY BETWEEN 150 LITRES AND 1000 LITRES |
| BS EN ISO 14245:2010 | Gas cylinders. Specifications and testing of LPG cylinder valves. Self-closing |
| PREN 14570 : DRAFT 2012 | LPG EQUIPMENT AND ACCESSORIES - EQUIPPING OF OVERGROUND AND UNDERGROUND LPG VESSELS |
| 05/30125032 DC : DRAFT JUL 2005 | EN 14678-2 - LPG EQUIPMENT AND ACCESSORIES - EQUIPMENT FOR LIQUEFIED PETROLEUM GAS AUTOMOTIVE FILLING STATIONS - PART 2: COMPONENTS OTHER THAN DISPENSERS, AND INSTALLATION REQUIREMENTS |
| UNI EN 16119 : 2013 | LPG EQUIPMENT AND ACCESSORIES - SEALING CAPS AND PLUGS FOR LPG CYLINDER AND PRESSURE VESSEL VALVES - SPECIFICATION AND TESTING |
| ISO 14245:2006 | Gas cylinders Specifications and testing of LPG cylinder valves Self-closing |
| DIN EN 14893 E : 2014 | LPG EQUIPMENT AND ACCESSORIES - TRANSPORTABLE LIQUEFIED PETROLEUM GAS (LPG) WELDED STEEL PRESSURE DRUMS WITH A CAPACITY BETWEEN 150 LITRES AND 1000 LITRES |
| I.S. EN 16125:2015 | LPG EQUIPMENT AND ACCESSORIES - PIPEWORK SYSTEMS AND SUPPORTS - LPG IN LIQUID PHASE AND VAPOUR PRESSURE PHASE |
| I.S. EN ISO 14245:2010 | GAS CYLINDERS - SPECIFICATIONS AND TESTING OF LPG CYLINDER VALVES - SELF-CLOSING |
| UNE-EN 14678-2:2009 | LPG equipment and accessories - Equipment for Liquefied Petroleum Gas automotive filling stations - Part 2: Components other than dispensers, and installation requirements |
| DIN EN 12252:2014-07 | LPG equipment and accessories - Equipping of LPG road tankers |
| DIN EN 14334:2015-01 | LPG equipment and accessories - Inspection and testing of LPG road tankers |
| DIN EN 14433:2014-12 | Tanks for the transport of dangerous goods - Tank equipment for the transport of liquid chemicals and liquefied gases - Foot valves |
| DIN EN 14570:2014-07 | LPG EQUIPMENT AND ACCESSORIES - EQUIPPING OF OVERGROUND AND UNDERGROUND LPG VESSELS |
| DIN EN 14432:2014-12 | Tanks for the transport of dangerous goods - Tank equipment for the transport of liquid chemicals and liquefied gases - Product discharge and air inlet valves |
| I.S. EN 14678-1:2013 | LPG EQUIPMENT AND ACCESSORIES - CONSTRUCTION AND PERFORMANCE OF LPG EQUIPMENT FOR AUTOMOTIVE FILLING STATIONS - PART 1: DISPENSERS |
| I.S. EN 14570:2014 | LPG EQUIPMENT AND ACCESSORIES - EQUIPPING OF OVERGROUND AND UNDERGROUND LPG VESSELS |
| DIN EN 12252:2000-10 | LPG EQUIPMENT AND ACCESSORIES - EQUIPPING OF LPG ROAD TANKERS |
| I.S. EN 14893:2014 | LPG EQUIPMENT AND ACCESSORIES - TRANSPORTABLE LIQUEFIED PETROLEUM GAS (LPG) WELDED STEEL PRESSURE DRUMS WITH A CAPACITY BETWEEN 150 LITRES AND 1000 LITRES |
| I.S. EN 12252:2014 | LPG EQUIPMENT AND ACCESSORIES - EQUIPPING OF LPG ROAD TANKERS |
| I.S. EN 14334:2014 | LPG EQUIPMENT AND ACCESSORIES - INSPECTION AND TESTING OF LPG ROAD TANKERS |
| I.S. EN 14432:2014 | TANKS FOR THE TRANSPORT OF DANGEROUS GOODS - TANK EQUIPMENT FOR THE TRANSPORT OF LIQUID CHEMICALS AND LIQUEFIED GASES - PRODUCT DISCHARGE AND AIR INLET VALVES |
| UNI EN 14432 : 2014 | TANKS FOR THE TRANSPORT OF DANGEROUS GOODS - TANK EQUIPMENT FOR THE TRANSPORT OF LIQUID CHEMICALS AND LIQUEFIED GASES - PRODUCT DISCHARGE AND AIR INLET VALVES |
| DIN EN 16125:2016-03 | LPG EQUIPMENT AND ACCESSORIES - PIPEWORK SYSTEMS AND SUPPORTS - LPG LIQUID PHASE AND VAPOUR PRESSURE PHASE |
| EN ISO 15995:2010 | Gas cylinders - Specifications and testing of LPG cylinder valves - Manually operated (ISO 15995:2006) |
| BS EN 16125:2015 | LPG Equipment and Accessories. Pipework systems and supports. LPG in liquid phase and vapour pressure phase |
| BS EN 14570:2014 | LPG equipment and accessories. Equipping of overground and underground LPG vessels |
| BS EN 12252:2014 | LPG equipment and accessories. Equipping of LPG road tankers |
| UNE-EN 14678-1:2013 | LPG equipment and accessories - Construction and performance of LPG equipment for automotive filling stations - Part 1: Dispensers |
| UNE-EN 16125:2016 | LPG Equipment and Accessories - Pipework systems and supports - LPG in liquid phase and vapour pressure phase |
| EN 14678-1:2013 | LPG equipment and accessories - Construction and performance of LPG equipment for automotive filling stations - Part 1: Dispensers |
| UNI EN 14334 : 2014 | LPG EQUIPMENT AND ACCESSORIES - INSPECTION AND TESTING OF LPG ROAD TANKERS |
| UNI EN 14570 : 2014 | LPG EQUIPMENT AND ACCESSORIES - EQUIPPING OF OVERGROUND AND UNDERGROUND LPG VESSELS |
| UNI EN 14893 : 2014 | LPG EQUIPMENT AND ACCESSORIES - TRANSPORTABLE LIQUEFIED PETROLEUM GAS (LPG) WELDED STEEL PRESSURE DRUMS WITH A CAPACITY BETWEEN 150 LITRES AND 1000 LITRES |
| UNI EN 14678-2 : 2012 | LPG EQUIPMENT AND ACCESSORIES - CONSTRUCTION AND PERFORMANCE OF LPG EQUIPMENT FOR AUTOMOTIVE FILLING STATIONS - PART 2: COMPONENTS OTHER THAN DISPENSERS AND INSTALLATION REQUIREMENTS |
| UNI EN 14678-1 : 2013 | LPG EQUIPMENT AND ACCESSORIES - CONSTRUCTION AND PERFORMANCE OF LPG EQUIPMENT FOR AUTOMOTIVE FILLING STATIONS - PART 1: DISPENSERS |
| UNI EN 14433 : 2014 | TANKS FOR THE TRANSPORT OF DANGEROUS GOODS - TANK EQUIPMENT FOR THE TRANSPORT OF LIQUID CHEMICALS AND LIQUEFIED GASES - FOOT VALVES |
| UNI EN 12252 : 2014 | LPG EQUIPMENT AND ACCESSORIES - EQUIPPING OF LPG ROAD TANKERS |
| BS ISO 15995:2006 | Gas cylinders. Specification and testing of LPG cylinder valves. Manually operated |
| 10/30218991 DC : 0 | BS EN 16119 - LPG EQUIPMENT AND ACCESSORIES - SEALING CAPS AND PLUGS FOR CYLINDER AND TANK VALVES - SPECIFICATION AND TESTING |
| UNI EN ISO 14245 : 2010 | GAS CYLINDERS - SPECIFICATIONS AND TESTING OF LPG CYLINDER VALVES - SELF-CLOSING |
| PREN 14678-1 : DRAFT 2010 | LPG EQUIPMENT AND ACCESSORIES - CONSTRUCTION AND PERFORMANCE OF LPG EQUIPMENT FOR AUTOMOTIVE FILLING STATIONS - PART 1: DISPENSERS |
| 05/30125303 DC : DRAFT APR 2005 | BS EN 15202 - LPG EQUIPMENT AND ACCESSORIES - ESSENTIAL OPERATIONAL DIMENSIONS FOR LPG CYLINDER VALVE OUTLET AND ASSOCIATED EQUIPMENT CONNECTIONS |
| 13/30281067 DC : 0 | BS EN 12252 - LPG EQUIPMENT AND ACCESSORIES - EQUIPPING OF LPG ROAD TANKERS |
| 13/30276940 DC : 0 | BS EN 16125 - LPG EQUIPMENT AND ACCESSORIES - PIPEWORK SYSTEMS AND SUPPORTS - LPG LIQUID PHASE AND VAPOUR PRESSURE PHASE |
| BS ISO 14245:2006 | Gas cylinders. Specification and testing of LPG cylinder valves. Self-closing |
| UNI EN ISO 15995 : 2010 | GAS CYLINDERS - SPECIFICATIONS AND TESTING OF LPG CYLINDER VALVES - MANUALLY OPERATED |
| PREN 14893 : DRAFT 2013 | LPG EQUIPMENT AND ACCESSORIES - TRANSPORTABLE LIQUEFIED PETROLEUM GAS (LPG) WELDED STEEL PRESSURE DRUMS WITH A CAPACITY BETWEEN 150 LITRES AND 1000 LITRES |
| I.S. EN ISO 15995:2010 | GAS CYLINDERS - SPECIFICATIONS AND TESTING OF LPG CYLINDER VALVES - MANUALLY OPERATED |
| DIN EN 14433 E : 2014 | TANKS FOR THE TRANSPORT OF DANGEROUS GOODS - TANK EQUIPMENT FOR THE TRANSPORT OF LIQUID CHEMICALS AND LIQUEFIED GASES - FOOT VALVES |
| DIN EN 14432 E : 2014 | TANKS FOR THE TRANSPORT OF DANGEROUS GOODS - TANK EQUIPMENT FOR THE TRANSPORT OF LIQUID CHEMICALS AND LIQUEFIED GASES - PRODUCT DISCHARGE AND AIR INLET VALVES |
| BS EN 14432:2014 | Tanks for the transport of dangerous goods. Tank equipment for the transport of liquid chemicals and liquefied gases. Product discharge and air inlet valves |
| EN 14893:2014 | LPG equipment and accessories - Transportable Liquefied Petroleum Gas (LPG) welded steel pressure drums with a capacity between 150 litres and 1 000 litres |
| EN 14432:2014 | Tanks for the transport of dangerous goods - Tank equipment for the transport of liquid chemicals and liquefied gases - Product discharge and air inlet valves |
| EN 16125:2015 | LPG Equipment and Accessories - Pipework systems and supports - LPG in liquid phase and vapour pressure phase |
| EN 14678-2:2007+A1:2012 | LPG equipment and accessories - Construction and performance of LPG equipment for automotive filling stations - Part 2: Components other than dispensers and installation requirements |
| EN 14570:2014 | LPG equipment and accessories - Equipping of overground and underground LPG vessels |
| EN 14433:2014 | Tanks for the transport of dangerous goods - Tank equipment for the transport of liquid chemicals and liquefied gases - Foot valves |
| EN 14334:2014 | LPG equipment and accessories - Inspection and testing of LPG road tankers |
| PREN 12252 : DRAFT 2013 | LPG EQUIPMENT AND ACCESSORIES - EQUIPPING OF LPG ROAD TANKERS |
| UNE-EN 14893:2014 | LPG equipment and accessories - Transportable Liquefied Petroleum Gas (LPG) welded steel pressure drums with a capacity between 150 litres and 1 000 litres |
| BS EN 16119:2013 | LPG equipment and accessories. Sealing caps and plugs for LPG cylinder and pressure vessel valves. Specification and testing |
| 14/30300118 DC : 0 | BS EN 14334 - LPG EQUIPMENT AND ACCESSORIES - INSPECTION AND TESTING OF LPG ROAD TANKERS |
| 10/30227098 DC : 0 | BS EN 16125 - LPG EQUIPMENT AND ACCESSORIES - PIPEWORK SYSTEMS AND SUPPORTS - LPG LIQUID PHASE AND VAPOUR PRESSURE PHASE |
| I.S. EN 16119:2013 | LPG EQUIPMENT AND ACCESSORIES - SEALING CAPS AND PLUGS FOR LPG CYLINDER AND PRESSURE VESSEL VALVES - SPECIFICATION AND TESTING |
| ISO 15995:2006 | Gas cylinders Specifications and testing of LPG cylinder valves Manually operated |
| DIN EN 14678-1:2013-06 | LPG equipment and accessories - Construction and performance of LPG equipment for automotive filling stations - Part 1: Dispensers |
| BS EN 14433:2014 | Tanks for the transport of dangerous goods. Tank equipment for the transport of liquid chemicals and liquefied gases. Foot valves |
| BS EN 14678-1:2013 | LPG equipment and accessories. Construction and performance of LPG equipment for automotive filling stations Dispensers |
| BS EN 14893:2014 | LPG equipment and accessories. Transportable Liquefied Petroleum Gas (LPG) welded steel pressure drums with a capacity between 150 litres and 1 000 litres |
| BS EN 14334:2014 | LPG equipment and accessories. Inspection and testing of LPG road tankers |
| EN 12252:2014 | LPG equipment and accessories - Equipping of LPG road tankers |
| EN 16119:2013 | LPG equipment and accessories - Sealing caps and plugs for LPG cylinder and pressure vessel valves - Specification and testing |
| UNE-EN 16125:2020 | LPG Equipment and Accessories - Pipework systems and supports - LPG in liquid phase and vapour pressure phase |
| EN 15202:2012 | LPG equipment and accessories - Essential operational dimensions for LPG cylinder valve outlet and associated equipment connections |
| EN 751-3:1996/AC:1997 | Sealing materials for metallic threaded joints in contact with 1st, 2nd and 3rd family gases and hot water - Part 3: Unsintered PTFE tapes |
| EN 13789:2010 | Industrial valves - Cast iron globe valves |
| ISO 11114-1:2012 | Gas cylinders Compatibility of cylinder and valve materials with gas contents Part 1: Metallic materials |
| EN 1503-4:2016 | Valves - Materials for bodies, bonnets and covers - Part 4: Copper alloys specified in European Standards |
| EN 10270-3:2011 | Steel wire for mechanical springs - Part 3: Stainless spring steel wire |
| EN 13906-1:2013 | Cylindrical helical springs made from round wire and bar - Calculation and design - Part 1 : Compression springs |
| EN 60079-0:2012/A11:2013 | EXPLOSIVE ATMOSPHERES - PART 0: EQUIPMENT - GENERAL REQUIREMENTS (IEC 60079-0:2011, MODIFIED) |
| EN 1759-1:2004 | Flanges and their joint - Circular flanges for pipes, valves, fittings and accessories, Class designated - Part 1: Steel flanges, NPS 1/2 to 24 |
| EN 1503-2:2000 | Valves - Materials for bodies, bonnets and covers - Part 2: Steels other than those specified in European Standards |
| EN 13547:2013 | Industrial valves - Copper alloy ball valves |
| EN 1983:2013 | Industrial valves - Steel ball valves |
| EN 751-2:1996 | Sealing materials for metallic threaded joints in contact with 1st, 2nd and 3rd family gases and hot water - Part 2: Non-hardening jointing compounds |
| EN 1503-1:2000 | Valves - Materials for bodies, bonnets and covers - Part 1: Steels specified in European Standards |
| EN 13709:2010 | Industrial valves - Steel globe and globe stop and check valves |
| EN 13799:2012 | LPG equipment and accessories - Contents gauges for Liquefied Petroleum Gas (LPG) pressure vessels |
| EN ISO 11114-1:2012/A1:2017 | GAS CYLINDERS - COMPATIBILITY OF CYLINDER AND VALVE MATERIALS WITH GAS CONTENTS - PART 1: METALLIC MATERIALS (ISO 11114-1: 2012/AMD 1:2017) |
| EN 1774:1997 | Zinc and zinc alloys - Alloys for foundry purposes - Ingot and liquid |
| ASME B1.20.1 : 2013(R2018) | PIPE THREADS, GENERAL PURPOSE (INCH) |
| ISO 7-1:1994 | Pipe threads where pressure-tight joints are made on the threads Part 1: Dimensions, tolerances and designation |
| ISO 11114-2:2013 | Gas cylinders Compatibility of cylinder and valve materials with gas contents Part 2: Non-metallic materials |
| EN ISO 11114-2:2013 | Gas cylinders - Compatibility of cylinder and valve materials with gas contents - Part 2: Non-metallic materials (ISO 11114-2:2013) |
| IEC 60079-0:2011 | Explosive atmospheres - Part 0: Equipment - General requirements |
| EN 751-1:1996 | Sealing materials for metallic threaded joints in contact with 1st, 2nd and 3rd family gases and hot water - Part 1: Anaerobic jointing compounds |
| EN 1563:2011 | Founding - Spheroidal graphite cast irons |
| EN 12164:2016 | Copper and copper alloys - Rod for free machining purposes |
| ISO 196:1978 | Wrought copper and copper alloys Detection of residual stress Mercury(I) nitrate test |
| EN 12420:2014 | Copper and copper alloys - Forgings |
| EN 837-1:1996/AC:1998 | PRESSURE GAUGES - BOURDON TUBE PRESSURE GAUGES - DIMENSIONS, METROLOGY, REQUIREMENTS AND TESTING |
| EN 549:1994 | Rubber materials for seals and diaphragms for gas appliances and gas equipment |
| EN 12165:2016 | COPPER AND COPPER ALLOYS - WROUGHT AND UNWROUGHT FORGING STOCK |
| ISO 301:2006 | Zinc alloy ingots intended for castings |
| EN 1267:2012 | Industrial valves - Test of flow resistance using water as test fluid |
| ISO 6957:1988 | Copper alloys Ammonia test for stress corrosion resistance |
| 1994/9/EC : 1994 | DIRECTIVE 94/9/EC OF THE EUROPEAN PARLIAMENT AND THE COUNCIL OF 23 MARCH 1994 ON THE APPROXIMATION OF THE LAWS OF THE MEMBER STATES CONCERNING EQUIPMENT AND PROTECTIVE SYSTEMS INTENDED FOR USE IN POTENTIALLY EXPLOSIVE ATMOSPHERES |
| 1997/23/EC : 1997 | DIRECTIVE 97/23/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL OF 29 MAY 1997 ON THE APPROXIMATION OF THE LAWS OF THE MEMBER STATES CONCERNING PRESSURE EQUIPMENT |
| EN ISO 196:1995 | Wrought copper and copper alloys - Detection of residual stress - Mercury(I) nitrate test (ISO 196:1978) |
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