EN 13160-7:2016

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.YDQMHQHWHVQRVWLLeckanzeigesysteme - Teil 7: Anforderungen und Prüf-/Bewertungsverfahren für Überwachungsräume, Leckschutzauskleidungen und LeckschutzummantelungenSystèmes de détection de fuites - Partie 7: Exigences et méthodes d'essai/d'évaluation pour les espaces interstitiels, les détecteurs de fuite des revêtements et les détecteurs de fuite d'enveloppesLeak detection systems - Part 7: Requirements and test/assessment methods for interstitial spaces, leak detection linings and leak detection jackets23.020.01Fluid storage devices in generalICS:Ta slovenski standard je istoveten z:EN 13160-7:2016SIST EN 13160-7:2016en,fr,de01-november-2016SIST EN 13160-7:2016SLOVENSKI
STANDARDSIST EN 13160-7:20031DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13160-7
July
t r s x ICS
t uä r t rä r sâ
t uä r v rä { {â
t {ä t x rä t r Supersedes EN
s u s x ræ yã t r r uEnglish Version
Leak detection systems æ Part
yã Requirements and detection linings and leak detection jackets Systèmes de détection de fuites æ Partie
yã Exigences et interstitielsá les détecteurs de fuite des revêtements et les détecteurs de fuite d 5enveloppes
Leckanzeigesysteme æ Teil
yã Anforderungen und PrüfæLeckschutzauskleidungen und Leckschutzummantelungen This European Standard was approved by CEN on
z April
t r s xä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey andUnited Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
t r s x CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s u s x ræ yã t r s x ESIST EN 13160-7:2016

Contents Page European foreword . 4 1 Scope . 6 2 Normative references . 6 3 Terms and definitions . 7 4 Requirements . 7 4.1 Effectiveness of leak detection lining kits and leak detection jacket kits . 7 4.1.1 Tightness against liquid and vapour. 7 4.1.2 Permeability of leak detection linings and leak detection jackets . 7 4.1.3 Free passage of liquid in the interstitial space . 8 4.1.4 Free passage of air . 8 4.1.5 Flow resistance after impact of stored media . 8 4.1.6 Mechanical resistance against the imposed load by the stored medium . 8 4.1.7 Chemical resistance . 15 4.2 Durability of effectiveness . 15 4.2.1 Durability against temperature . 15 4.2.2 Durability against chemical attack . 15 4.2.3 Durability against mechanical load . 15 5 Testing, assessment and sampling methods . 15 5.1 Effectiveness of leak detection lining kits and leak detection jacket kits . 15 5.1.1 Tightness against liquid and gas . 15 5.1.2 Permeability . 17 5.1.3 Free passage of liquid in the interstitial space . 18 5.1.4 Free passage of air . 19 5.1.5 Flow resistance after impact of stored media . 22 5.1.6 Mechanical resistance against the imposed load by the stored medium . 25 5.1.7 Chemical resistance . 25 5.2 Durability of effectiveness . 25 5.2.1 Durability against temperature . 25 5.2.2 Durability against chemical attack . 25 5.2.3 Durability against mechanical load . 25 6 Assessment and verification of constancy of performance – AVCP . 27 6.1 General. 27 6.2 Type testing . 28 6.2.1 General. 28 6.2.2 Test samples, testing and compliance criteria . 29 6.2.3 Test reports . 29 6.2.4 Shared other party results . 29 6.2.5 Cascading determination of the product type results . 30 6.3 Factory production control (FPC) . 31 6.3.1 General. 31 6.3.2 Requirements . 32 6.3.3 Product specific requirements. 34 6.3.4 Procedure for modifications . 35 SIST EN 13160-7:2016

6.3.5 One-off products, pre-production products (e.g. prototypes) and products produced in very low quantity . 35 7 Marking, labelling and packaging . 36 8 Environmental aspects . 37 Annex A (normative)
Determination of the interstitial space volume for class I-systems . 38 A.1 Test equipment. 38 A.2 Preparation . 38 A.3 Procedure . 39 A.4 Evaluation. 41 Annex B (informative)
Environmental aspects . 42 Annex ZA (informative)
Clauses of this European Standard addressing the provisions of the EU Construction Products Regulation 305/2011/EU . 44 ZA.1 Scope and relevant characteristics . 44 ZA.2 Procedure for AVCP of leak detection linings and leak detection jackets . 45 ZA.2.1 System(s) of AVCP. 45 ZA.2.2 Declaration of performance (DoP) . 46 ZA.2.2.1 General . 46 ZA.2.2.2 Content . 47 ZA.2.2.3 Example of DoP . 47 ZA.3 CE marking and labelling . 49
European foreword This document (EN 13160-7:2016) has been prepared by Technical Committee CEN/TC 393 “Equipment for storage tanks and for filling stations”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by December 2016, and conflicting national standards shall be withdrawn at the latest by March 2018. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 13160-7:2003. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. According to edition 2003 the following fundamental changes are given: — requirements and tests for permeation added; — material properties revised; —
requirements from EN 13160-1:2003 included, which are no longer contained in EN 13160-1:2016. This European Standard Leak detection systems consists of 7 parts: — Part 1: General principles — Part 2: Requirements and test/assessment methods for pressure and vacuum systems — Part 3: Requirements and test/assessment methods for liquid systems for tanks — Part 4: Requirements and test/assessment methods for sensor based leak detection systems — Part 5: Requirements and test/assessment methods for in-tank gauge systems and pressurized pipework systems — Part 6: Sensors in monitoring wells — Part 7: Requirements and test/assessment methods for interstitial spaces, leak detection linings and leak detection jackets According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, SIST EN 13160-7:2016

Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 13160-7:2016

1 Scope This European Standard gives requirements and the corresponding test/assessment methods applicable to leak detection lining kits and leak detection jacket kits. Leak detection lining kits and leak detection jackets kits intended to be used to create an interstitial space or leakage containment in single skin underground or above ground, non-pressurized, tanks designed for water polluting liquids. The kit has to be used only in conjunction with leak detection kits covered by EN 13160-2 to EN 13160-4. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 228, Automotive fuels — Unleaded petrol — Requirements and test methods EN 495–5, Flexible sheets for waterproofing — Determination of foldability at low temperature — Part 5: Plastic and rubber sheets for roof waterproofing EN 1107-2, Flexible sheets for waterproofing — Determination of dimensional stability — Part 2: Plastic and rubber sheets for roof waterproofing EN 1849-2, Flexible sheets for waterproofing — Determination of thickness and mass per unit area — Part 2: Plastic and rubber sheets EN 10300:2005, Steel tubes and fittings for onshore and offshore pipelines — Bituminous hot applied materials for external coating EN 13121-1, GRP tanks and vessels for use above ground — Part 1: Raw materials — Specification conditions and acceptance conditions EN 13121-2:2003, GRP tanks and vessels for use above ground — Part 2: Composite materials — Chemical resistance EN 13160-1:2016, Leak detection systems — Part 1: General principles EN 13160-2:2016, Leak detection systems — Part 2: Requirements and test/assessment methods for pressure and vacuum systems EN 13160-3:2016, Leak detection systems — Part 3: Requirements and test/assessment methods for liquid systems for tanks EN 13160-4:2016, Leak detection systems — Part 4: Requirements and test/assessment methods for sensor based leak detection systems EN 14879-4:2007, Organic coating systems and linings for protection of industrial apparatus and plants against corrosion caused by aggressive media — Part 4: Linings on metallic components EN ISO 62, Plastics — Determination of water absorption (ISO 62) EN ISO 75-1, Plastics — Determination of temperature of deflection under load — Part 1: General test method (ISO 75-1) SIST EN 13160-7:2016

EN ISO 75-2, Plastics — Determination of temperature of deflection under load — Part 2: Plastics and ebonite (ISO 75-2) EN ISO 75-3, Plastics — Determination of temperature of deflection under load — Part 3: High-strength thermosetting laminates and long-fibre-reinforced plastics (ISO 75-3) EN ISO 175, Plastics — Methods of test for the determination of the effects of immersion in liquid chemicals (ISO 175) EN ISO 178, Plastics — Determination of flexural properties (ISO 178) EN ISO 179-1, Plastics — Determination of Charpy impact properties — Part 1: Non-instrumented impact test (ISO 179-1) EN ISO 179-2, Plastics — Determination of Charpy impact properties — Part 2: Instrumented impact test (ISO 179-2) EN ISO 527-1, Plastics — Determination of tensile properties — Part 1: General principles (ISO 527-1) EN ISO 527-3, Plastics — Determination of tensile properties — Part 3: Test conditions for films and sheets (ISO 527-3) EN ISO 604, Plastics — Determination of compressive properties (ISO 604) EN ISO 1183-1, Plastics — Methods for determining the density of non-cellular plastics — Part 1: Immersion method, liquid pyknometer method and titration method (ISO 1183-1) EN ISO 24345, Resilient floor coverings — Determination of peel resistance (ISO 24345) ISO 2528, Sheet materials — Determination of water vapour transmission rate — Gravimetric (dish) method ISO 6133, Rubber and plastics — Analysis of multi-peak traces obtained in determinations of tear strength and adhesion strength 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 13160-1:2016 apply. 4 Requirements 4.1 Effectiveness of leak detection lining kits and leak detection jacket kits 4.1.1 Tightness against liquid and vapour The integrity of the leak detection linings and leak detection jackets shall be maintained under all operating pressures. 4.1.2 Permeability of leak detection linings and leak detection jackets The permeation shall be according to Table 1 and Table 2. No condensation of vapour of the stored product in the interstitial space should occur. SIST EN 13160-7:2016

Table 1 — Permeation of leak detection linings Property Required value Passage of stored products at installation of the leak protecting lining in metal tanks with a passage of stored product of 0 g/m2 „ d max 100 g/m2 „ day Passage of stored products at installation of the leak protecting lining in tanks with a passage of stored product > 0 g/m2 „ d max 0,1 g/m2 „ day
Passage of deionized water max 4 g/m2 „ day NOTE By permeation rates > 0 g/m2 „ d the exhaust line of the leak detector should be connected to the vapour space of the stored tank. Table 2 — Permeation of leak detection jackets Property Required value Passage of stored product max 2 g/m2 „ day Passage of deionized water max 4 g/m2 „ day 4.1.3 Free passage of liquid in the interstitial space The quantity of liquid, calculated according to EN 13160–2:2016, Formula (4) and the specific volume Vsp according to Annex A shall enter the interstitial space by a vacuum change from (60 ± 5) kPa (pPA) to (30 ± 5) kPa (pPE). Additional for leak detection systems class II according to EN 13160-3 the flow rate at the test nozzles shall be > 0,5 l/min. 4.1.4 Free passage of air 4.1.4.1 Free passage of air through intermediate layer The back pressure of the intermediate layer shall not be higher than 1 kPa at a volume flow of (85 ± 5) l/h of air. 4.1.4.2 Free passage of air through double skin tanks and pipes An opening of the interstitial space shall result in a pressure change in the interstitial space. 4.1.5 Flow resistance after impact of stored media The flow resistance shall not exceed the value of 1 kPa at an air volume flow of (85 ± 5) l/h. 4.1.6 Mechanical resistance against the imposed load by the stored medium 4.1.6.1 Influence of the mechanical resistance to the free passage in the interstitial space The flow resistance of the intermediate layer shall not be higher than 1 kPa at a volume flow of (85 ± 5) l/h of air under load. 4.1.6.2 Mechanical properties Mechanical properties for polyvinylchloride (PVC) shall be according to Table 3. SIST EN 13160-7:2016

Table 3 — Mechanical properties for polyvinylchloride (PVC) No. Property Test method Dimension Required value 1 Tensile strength, Lengthwise and across EN ISO 527-1 and EN ISO 527-3; Test speed: 200 mm/min ± 10 % Specimen: Type 2 N/mm
· 15 2 Tensile elongation, Lengthwise and across EN ISO 527-1 and EN ISO 527-3; Test speed: 200 mm/min ± 10 % Specimen: Type 2 % > 200 3 Reaction of joint to shear test EN ISO 527-1 and EN ISO 527-3; Test speed: 200 mm/min ± 10 % Specimen: Type 2 — Off-joint fracture, joint factor
· 0,65 4 Adhesion of multilayered sheet material In conformity with EN ISO 24345, ISO 6133, EN ISO 527-1 and EN ISO 527-3; Test speed: 100 mm/min ± 10 % Specimen: Type 2 N/mm
· 2,0 5 Variation in dimension in either direction after storage at 80 °C EN 1107–2; in a hot cabinet 2 h in air of (80 ± 2) °C and then 30 min at normal climate on a cover, which shall not affect the dimensions %
¶ 2,0 6 Reaction in either direction to folding at a temperature of
« t r °C EN 495–5 — No fissures may occur on either top or bottom surface 7 Thickness EN 1849–2 %
Middle deviation ± 10 Deviation of single value
¶ 12 8 Density EN ISO 1183-1 % Middle deviation ± 2 Effects of test media for polyvinylchloride (PVC) shall be according to Table 4. SIST EN 13160-7:2016

Table 4 — Effects of test media for polyvinylchloride (PVC) Property Test method Dimension Required value Change of mass after storage in deionized water and stored product or test liquids according to Annex C of EN 14879–4:2007 In conformity with EN ISO 62 at normal climate, change shall be determined after the following storage periods: 3, 14 and 56 d %
¶ 15 Change of tensile strength and elongation, in either direction after storage in deionized water and stored product (56 d at 23 °C) or test liquids according to Annex C of EN 14879–4:2007 EN ISO 527-1 and EN ISO 527-3 Test speed: 200 mm/min ± 10 % Specimen: Type 2 %
¶ 25 for tensile elongation the measured value as per Table 3 Change of tensile strength and elongation, in either direction after storage in of folded materials in deionized water and stored product
(56 d at 23 °C) or test liquids according to Annex C of EN 14879–4:2007 EN ISO 527-1 and EN ISO 527-3 Test speed: 200 mm/min ± 10 % Specimen: Type 2 %
¶ 25 Change of reaction of the joint to shear test after storage in deionized water and stored product (56 d at 23 °C) or test liquids according to Annex C of EN 14879–4:2007 EN ISO 527-1 and EN ISO 527-3 Test speed: 200 mm/min ± 10 % Specimen: Type 2 — Off-joint fracture Mechanical properties for thermoplastic and thermoplastic elastomers except polyvinylchloride (PVC) shall be according to Table 5. SIST EN 13160-7:2016

Table 5 — Mechanical properties for thermoplastic and thermoplastic elastomers except polyvinylchloride (PVC) No. Property Test method Dimension Required value 1 Tensile strength, Lengthwise and across EN ISO 527-1 and EN ISO 527-3; Test speed: 200 mm/min ± 10 % Specimen: Type 2 N/mm
· 15 2 Tensile elongation, Lengthwise and across EN ISO 527-1 and EN ISO 527-3; Test speed: 200 mm/min ± 10 % Specimen: Type 2 % > 200 3 Reaction of joint to shear test EN ISO 527-1 and EN ISO 527-3; Test speed: 200 mm/min ± 10 % Specimen: Type 2 — Off-joint
fracture, joint factor
· 0,5 4 Adhesion of multilayered sheet material In conformity with EN ISO 24345, ISO 6133, EN ISO 527-1 and EN ISO 527-3; Test speed: 100 mm/min ± 10 % Specimen: Type 2 N/mm
· 1,0 5 Variation in dimension in either direction after storage at 80 °C EN 1107–2; in a hot cabinet 2 h in air of (80 ± 2) °C and then 30 min at normal climate on a cover, which shall not affect the dimensions %
¶ 10 6 Reaction in either direction to folding at a temperature of
« t r °C EN 495–5 — No fissures may occur on either top or bottom surface 7 thickness EN 1849–2 %
Middle deviation ± 10 8 density EN ISO 1183-1 % Middle deviation ± 10 % Effects of test media for thermoplastic and thermoplastic elastomers except polyvinylchloride (PVC) shall be according to Table 6. SIST EN 13160-7:2016

Table 6 — Effects of test media for thermoplastic and thermoplastic elastomers except polyvinylchloride (PVC) Property Test method Dimension Required value Change of mass after storage in deionized water and stored product or test liquids according to Annex C of EN 14879–4:2007 In conformity with EN ISO 62 at normal climate, change shall be determined after the following storage periods: 3 d, 14 d and 56 d %
¶ 20 Change of tensile strength and elongation, in either direction after storage in deionized water and stored product (56 d at 23 °C) or test liquids according to Annex C of EN 14879–4:2007 EN ISO 527-1 and EN ISO 527-3 Test speed: 200 mm/min ± 10 % Specimen: Type 2 %
¶ 50 Change of tensile strength and elongation, in either direction after storage in of folded materials in deionized water and stored product
(56 d at 23 °C) or test liquids according to Annex C of EN 14879–4:2007 EN ISO 527-1 and EN ISO 527-3 Test speed: 200 mm/min ± 10 % Specimen: Type 2 %
¶ 60 for tensile elongation the measured value as per Table 5 Change of reaction of the joint to shear test after storage in deionized water and stored product (56 d at 23 °C) or test liquids according to Annex C of EN 14879–4:2007 EN ISO 527-1 and EN ISO 527-3 Test speed: 200 mm/min ± 10 % Specimen: Type 2 — Off-joint fracture Requirements for inner layer of leak detection linings and outer layer of leak detection jackets with epoxide resin (EP) or unsaturated polyester resin (UP) moulding materials shall be according to Table 7. The inner layer by leak detection linings/outer layer by leak detection jacket of original height without spacer shall be used for testing. SIST EN 13160-7:2016

Table 7 — Requirements for inner layer of leak detection linings and outer layer of leak detection jackets with epoxide resin (EP) or unsaturated polyester resin (UP) moulding materials Property Dimension Test method Sample Mean value of property dimension mm number Flexural strength MPa EN ISO 178 EN ISO 178 5
· 80 Impact strength kJ/m2 EN ISO 179-1 and EN ISO 179-2 EN ISO 179-1 5
· 5 Dimensional stability under heat °C EN ISO 75-1 EN ISO 75-2 EN ISO 75-3 EN ISO 75-2 EN ISO 75-3 3
· 50 Change in weight after 28 days storage — distilled water at (20 ± 5) °C — stored product at (20 ± 5) °C or test liquids according to Annex C of EN 14879–4:2007 %
EN ISO 175 The sample shall be wiped dry and weighed immediately after the storage.
EN ISO 175 Cut surfaces shall be sealed.
3 3
+4
« t
Change of flexural strength after 28 days storage — distilled water at (20 ± 5) °C — stored product at (20 ± 5) °C or test liquids according to Annex C of EN 14879–4:2007 %
EN ISO 178
EN ISO 178 Cut surfaces shall be sealed.
5 5
¶
« u r The mean values of the flexural strength and of the impact strength shall fulfil the requirements of Table 7. The single value of the flexural strength may be up to 15 % and the single value of the impact strength may be up to 30 % under the values of Table 7. The single value of the other properties shall fulfil the requirements of Table 7. Requirements for intermediate layer of resin and spacer of leak detection linings and of leak detection jackets according to Figure 1 shall be according to Table 8. SIST EN 13160-7:2016

Table 8 — Requirements for intermediate layer of resin and spacer of leak detection linings and of leak detection jackets Property Dimension Test method sample Values of property dimension
mm number Compression strength at condition at time of supply N/mm2 EN ISO 604 length and width according to EN ISO 604 height: sampling height 5
· 1,0 (no break) for tanks with a height or diameter of
¶ 3 m
· 3,0 (no break) for tanks with a height or diameter of > 3 m
Change of compression strength after 112 days storage at ambient temperature in water and stored product or test liquids according to Annex C of EN 14879–4:2007 % EN ISO 604 length and width according to EN ISO 604 height: sampling height Cut surfaces shall be sealed. 5
· 0,6 (no break) for tanks with a height or diameter of
¶ 3 m
· 1,8 (no break) for tanks with a height or diameter of > 3 m The construction of leak detection linings and leak detection jackets can be according to Figure 1.
a)
b)
c) NOTE Before installation of the leak detection lining/leak detection jacket the tank wall may be coated according to EN 14879-4. Key 1 inner layer by leak detection linings/outer layer by leak detection jackets 2 intermediate layer 3 tank wall 4 inner layer by leak detection linings/ outer layer by leak detection jackets combined with spacer 5 inner layer by leak detection linings/outer layer by leak detection jacket combined with spacer, fixed to the tank wall Figure 1 — Construction of leak detection linings and leak detection jackets SIST EN 13160-7:2016

4.1.7 Chemical resistance 4.1.7.1 Inner layer and outer layer in contact with the stored liquid The components of the thermoplastic and thermoplastic elastomers leak detection lining kits according to Table 4 and Table 6. The components of the UP and EP leak detection lining kits or leak detection jacket kits according to EN 13121-1 and 5.2, 5.5 and 5.6 of EN 13121-2:2003. 4.1.7.2 Intermediate layer and spacer of leak detection linings or of leak detection jackets in contact with
the stored liquid After the test according to 5.1.5 the flow resistance shall not exceed the value of 1 kPa at an air volume flow of (85 ± 5) l/h. 4.2 Durability of effectiveness 4.2.1 Durability against temperature For thermoplastic and thermoplastic elastomers leak detection linings according to Table 3 and Table 5. For intermediate layer according to 5.1.4.2. For UP and EP leak detection linings or leak detection jackets according to Table 7. 4.2.2 Durability against chemical attack The thermoplastic and thermoplastic elastomers leak detection linings according to Table 4 and Table 6. The UP and EP leak detection linings or leak detection jackets according to Table 7 and intermediate layer and spacer of leak detection linings and of leak detection jackets according to Table 8. 4.2.3 Durability against mechanical load 4.2.3.1 Leak detection lining kits The components of the thermoplastic and thermoplastic elastomers leak detection lining kits according to Table 3 to Table 6. The components of the UP and EP leak detection lining kits shall fulfil the requirements according to EN 13121-1. 4.2.3.2 Leak detection jacket kits There shall be no damage indicated by a crack, de-bonding or delamination after the test according to 5.2.3.2. 5 Testing, assessment and sampling methods 5.1 Effectiveness of leak detection lining kits and leak detection jacket kits 5.1.1 Tightness against liquid and gas 5.1.1.1 Test equipment — vacuum pump with constant volume flow of 85 l/h; SIST EN 13160-7:2016

— pressure pump; — measuring device for pressure accuracy 0,6 % of the maximum graduated value; — water; — bucket with scale. 5.1.1.2 Preparation The test tank shall be equipped with 3 test nozzles, which shall be distributed over the tank circumference. The test pipework shall have a length of minimum 10 m and shall be equipped with four test nozzles. One particular test nozzle shall be installed at every end of the test pipe and the third and fourth shall be installed at a distance of 2,5 m apart to the nozzles already available. 5.1.1.3 Procedure The test shall be carried out at a temperature above the freezing point of water but not exceeding +40 °C. The tightness and the strength of the interstitial space shall be proved by a pressure test on a sample of a tank or pipework at ambient pressure in the tank or pipework. The difference of the ambient temperature shall be within a range of 1 K at the beginning and at the end of the test. The following minimum test pressures (pt2) shall be used: — for interstitial spaces, which are part of a leak detection system working on the basis of leak detection liquid or pressure at 1,1 times of the set pressure of the pressure relief valve, but at least at 60 kPa (0,6 bar) pressure; — for the interstitial spaces, which are part of a leak detection system working on the basis of vacuum at 1,1 times of the negative working pressure of the leak detector and at 1,1 times of the operating pressure of the pipework or the tank at pressurization of the pipework or tank at the same time. 5.1.1.4 Evaluation The test shall be deemed to have been passed if the condition in Formula (1) is fulfilled: tVpp1EB)(10⋅≥−in Pa l s «1
(1) where pB is the pressure at the beginning of the test, in Pascal pE is the pressure at the end of the test, in Pascal t is the test time, in seconds V1 is the volume of the interstitial space according to Annex A in litres SIST EN 13160-7:2016

5.1.2 Permeability 5.1.2.1 Test equipment — Stored product or the following test liquids: a) For unleaded petrol:
According to EN 228 1) with maximum 5 % (V/V) ethanol 47,5 % (V/V) toluene, 30,4 % (V/V) isooctane (2,2,4-trimethylpentane) 17,1 % (V/V) n-heptane 3,0 % (V/V) methanol 2,0 % (V/V) butanol 2) with > 5 % (V/V) and
¶ 20 % (V/V) ethanol 20 % (V/V) ethanol 37,7 % (V/V) toluene 24,2 % (V/V) isooctane (2,2,4- trimethylpentane) 13,5 % (V/V) n-heptane 3 % (V/V) methanol 1,6 % (V/V) butanol The tolerance for the component of the test liquid shall be 0,1 %. b) for other products: according to Annex C of EN 14879-4:2007. — Scale, accuracy of minimum ± 0,1 g. — Length measuring device, accuracy of minimum ± 1 mm. — Volume measuring device, accuracy of minimum ± 1 ml. 5.1.2.2 Preparation The dimension of the test sample (e.g. piece of pipe or bag of lining material) shall be measured and recorded. A test sample in form of closed volume with a minimum inner surface of 0,12 m2 shall be used. The volume of the test sample shall be filled with (1,0 ± 0,1) l of test liquid and shall be weighted. The end-closures used for the permeation test will need to be fitted with FKM or rubber, seals. The seal shall be resistant against the test liquid. The test liquid shall be specially selected for their volatile nature, so that multiple seals may be required to ensure that loss through the end-closures is negligible. SIST EN 13160-7:2016

The closure of the test samples may be grouted. 5.1.2.3 Procedure Store the samples in air at (23 ± 2) °C using the scale. In conformity with ISO 2528 at normal climate, passage shall be determined after the following storage periods: 1, 3, 7, 14 and 56 d. Determine the rate of mass loss of the 'steady-state’ period (gradient of the regression line) in g „ d-1. Calculate the surface area A, where A = π„L „ D, in m2. Divide the rate of mass loss by A to give the permeation rate in g „ m-2 „ d-1 for each specimen. 5.1.2.4 Evaluation The test shall be deemed to have been passed, if the arithmetic average value over 56 d does not exceed the values according to Table 1. Each value measured at the different days shall fulfil the requirements of Table 1 and Table 2. 5.1.3 Free passage of liquid in the interstitial space 5.1.3.1 Test equipment — vacuum pump with constant volume flow of 85 l/h; — measuring device for pressure accuracy 0,6 % of the maximum graduated value; — water; — bucket with scale. 5.1.3.2 Preparation For the test the vacuum pump shall be connected to the actual interstitial space of the representative test tank or test pipe. The test tank shall be equipped with three test nozzles, which shall be distributed over the tank circumference. The test pipework shall have a length of minimum 10 m and shall be equipped with four test nozzles. One particular test nozzle shall be installed at every end of the test pipe and the third and fourth shall be installed at a distance of 2,5 m apart to the nozzles already available. A representative sample of the interstitial space of at least 1600 mm × 900 mm shall be used. The test sample shall include any seams/welds and intermediate layer and shall have at least two test nozzles at a distance of 1500 mm apart. 5.1.3.3 Procedure 5.1.3.3.1 Admission of water The determination of the interstitial space volume for class I-systems shall be done according to Annex A. The test shall be carried out at a temperature above the freezing point of water. In the interstitial space a vacuum of (60 ± 5) kPa shall be generated by the vacuum pump. The measuring device for pressure shall be connected to the test sample at the highest test nozzle. SIST EN 13160-7:2016

The admission of water shall be made through the test nozzle, situated at the lowest point of the test sample, until a vacuum of (30 ± 5) kPa are reached. The volume of water, sucked into the interstitial space, shall be measured. 5.1.3.3.2 Flow rate Only for leak detection systems class II the flow rate of water at the outlet at the lowest point shall be measured. The test nozzle at the lowest point shall be opened and the water shall be collected over a time. 5.1.3.4 Evaluation These values shall be identically with the calculated values according to 4.1.3 with a deviation ± 10 %. 5.1.4 Free passage of air 5.1.4.1 Free passage of air through intermediate layer 5.1.4.1.1 Test equipment — Thickness tester, with an accuracy of 0,01 mm; — two quadratic steel retaining plates 100 mm × 100 mm, thickness 10 mm; — two quadratic steel pressure plates 150 mm × 150 mm, thickness 10 mm, with a hole of 10 mm each in the corner sphere. One steel plate has a hole in the middle of the plate with a diameter of 6 mm and a fitting with a diameter of 6 mm is also welded on in the middle of the plate; — four locking screws, 8 mm; — compression device, with an accuracy of 1 %; — air impermeable foil, e.g. PE 0,75 mm thickness; — environmental chamber; — vacuum pump with constant volume flow of 85 l/h; — measuring device for pressure accuracy 0,6 % of the maximum graduated value; — measuring device for the volume flow accuracy 0,6 % of the maximum graduated value. 5.1.4.1.2 Preparation The tests shall be carried out at least at three quadratic test samples with the dimensions of 100 mm × 100 mm. 5.1.4.1.3 Procedure The test shall be carried out at a temperature for installation in the open air at (60 ± 3) °C or by use in frost protected area or underground tanks at (40 ± 3) °C. NOTE The test at (60 ± 3) °C includes the test at (40 ± 3) °C. For protecting the lining the intermediate layer shall be tested at 1,3 times the maximum possible surface pressure (pMS) according to Formula (2) – but a minimum of 50 kPa (0,5 bar). SIST EN 13160-7:2016

For protecting the jacket the intermediate layer shall be tested at a minimum of 1 MPa (10 bar). Maximum possible surface pressure according to Formula (2): pMS =
„ g „ h + pPA
(2) First the initial thickness of the intermediate layers (s1) shall be measured with the thickness tester. After the measurement the intermediate layers shall be laid between the two test plates. Through the upper test plate the test samples shall be charged with the help of the compression device: After reaching the steady-state condition but not before a minimum period of 14 days has elapsed the residual thickness (s2) shall be measured and the test equipment shall be installed in the environmental chamber. The test samples shall be charged further with the maximum possible surface pressure (pMS) and the measurement of the thickness shall be repeated at the limiting temperatures. The steady-state condition has been reached, if two measurements of the residual thickness (s2) made at intervals of 24 h do not differ by more than 1 % from the thickness (s1). If after 90 days the steady-state condition has not been achieved the test has failed. Following this test the intermediate layers shall be pressed with the help of the pressure plates and the locking screws until half of the residual thickness of the intermediate layers (s3) has been achieved or the pressure exceeds 2 „ pMS. At the fittings, located in the middle of the plate, a vacuum pump with an inserted measuring device for pressure, e.g. u-tube, shall be connected. At the exit of the vacuum pump a valve for throttling the volume flow shall be installed, so that the volume flow can be adjusted to the given value of (85 ± 5) l/h through the secondary measuring device for the volume flow. The length of the connecting line of the measuring device for pressure to the fittings of the interstitial space shall be 250 mm. The flexible connecting lines at the connection of the vacuum pump and the measuring device for the volume flow shall be realized with an internal diameter of 6 mm. The total length of the connecting line from the fittings to the vacuum pump shall be max. 1 m for the measurements. After installation of the test equipment as mentioned above and in Figure 2 the flow resistance shall be taken from the measuring device for pressure after turning-on the vacuum pump and adjusting the volume flow to (85 ± 5) l/h. The measurement shall be repeated at each test sample. The mean of the measured values shall be compared with the limiting value of
«1 kPa. SIST EN 13160-7:2016
Dimensions in millimetres
Key 1 connection for vacuum pump with 85 l/h air 2 measuring device for pressure 3 test plate 4 intermediate layer 5 air impermeable foil
Test sample Initial thickness s1 mm Res. thickness at pMS after loading s2 mm Thickness s3 mm Flow back pressure at a flow of 85 l/h air (set-up as shown) kPa
Figure 2 — Flow rate test set-up 5.1.4.1.4 Evaluation The test shall be deemed to have been passed, if the air current back pressure emanating from the intermediate layer with the thickness s3 is not less than
«1 kPa (10 mbar) at a volume flow of (85 ± 15) l/h of air. SIST EN 13160-7:2016

5.1.4.2 Free passage of air through double skin tanks and pipes 5.1.4.2.1 Test equipment — vacuum or pressure pump; — measuring device for pressure accuracy 0,6 % of the maximum graduated value; — drilling machine; — 2 mm drill; — tape. 5.1.4.2.2 Preparation A measuring device for pressure shall be connected to a nozzle for the leak detector at the interstitial space of the test tank or test pipe. Further nozzles shall be tightly shut by a stop valve. The interstitial space shall be evacuated by an externally connected vacuum pump to a vacuum of 60 kPa for vacuum systems. For pressure systems the interstitial space shall be pressurized by an externally pressure pump to a pressure of +60 kPa. 5.1.4.2.3 Procedure The test shall be carried out at a temperature above the freezing point of water. The free passage of the interstitial space of the sample of the tank or pipework shall be tested by sampling by means of borings with a drill (2 mm) at positions determined by the person during the test. The pressure or vacuum reached before the test is carried out shall be reduced within a short time according to the capacity of the interstitial space by charging and discharging and shall be visible at the measuring device for pressure. 5.1.4.2.4 Evaluation The test shall be deemed to have been passed, if after opening of the interstitial space due to drilling a 2 mm hole air is deflated in the interstitial space at the pressure system and the pressure in the interstitial space falls or at the vacuum system air is sucked into the interstitial space due to drilling a 2 mm hole, so that the pressure in the interstitial space incre
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