SIST EN 15619:2014
(Main)Rubber or plastic coated fabrics - Safety of temporary structures (tents) - Specification for coated fabrics intended for tents and related structures
Rubber or plastic coated fabrics - Safety of temporary structures (tents) - Specification for coated fabrics intended for tents and related structures
EN 15619 specifies the characteristics, requirements and test methods for coated fabric intended for mobile, temporary installed tents and related structures. Plastic film and material other than coated fabrics are not covered by this European Standard.
Mit Kautschuk oder Kunststoff beschichtete Textilien - Sicherheit Fliegender Bauten (Zelte) - Spezifikation für beschichtete Textilien für Zelte und zugehörige Bauten
Diese Europäische Norm legt die Eigenschaften, Anforderungen und Prüfverfahren für beschichtete Textilien fest, die als wiederholt zu errichtende Fliegende Bauten in Form von Zelten (siehe 3.3) und zugehörige Bauwerke vorgesehen sind. Kunststofffolien und andere Materialien als beschichtete Textilien sind kein Bestandteil der vorliegenden Norm.
Supports textiles revêtus de caoutchouc ou de plastique - Sécurité des structures temporaires (tentes) - Spécification des supports textiles revêtus destinés aux tentes et structures similaires
La présente Norme Européenne spécifie les caractéristiques, les exigences et les méthodes d’essai relatives aux
étoffes enduites destinées aux tentes mobiles installées temporairement (voir 3.3) et aux structures similaires.
Les films plastiques et les matériaux autres que les étoffes enduites ne sont pas couverts par la présente Norme
Européenne.
Gumirane ali plastificirane tekstilije - Varnost začasnih konstrukcij (šotori) - Specifikacija tekstilij, namenjenih za šotore in podobne konstrukcije
Standard EN 15619 določa lastnosti, zahteve in preskusne metode za gumirane ali plastificirane tekstilije za mobilne, začasno nameščene šotore in podobne strukture. Plastični filmi in drugi materiali, ki niso gumirane ali plastificirane tekstilije, niso zajeti v tem evropskem standardu.
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.FLMHMit Kautschuk oder Kunststoff beschichtete Textilien - Sicherheit Fliegender Bauten (Zelte) - Spezifikation für beschichtete Textilien für Zelte und zugehörige BautenSupports textiles revêtus de caoutchouc ou de plastique - Sécurité des structures temporaires (tentes) - Spécification des supports textiles revêtus destinés aux tentes et structures similairesRubber or plastic coated fabrics - Safety of temporary structures (tents) - Specification for coated fabrics intended for tents and related structures97.200.30Oprema za taborjenje in taboriCamping equipment and camp-sites59.080.40WHNVWLOLMHCoated fabricsICS:Ta slovenski standard je istoveten z:EN 15619:2014SIST EN 15619:2014en,fr,de01-junij-2014SIST EN 15619:2014SLOVENSKI
STANDARDSIST EN 15619:2009+A1:20111DGRPHãþD
SIST EN 15619:2014
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 15619
March 2014 ICS 59.080.40; 97.200.30 Supersedes EN 15619:2008+A1:2010English Version
Rubber or plastic coated fabrics - Safety of temporary structures (tents) - Specification for coated fabrics intended for tents and related structures
Supports textiles revêtus de caoutchouc ou de plastique - Sécurité des structures temporaires (tentes) - Spécification des supports textiles revêtus destinés aux tentes et structures similaires
Mit Kautschuk oder Kunststoff beschichtete Textilien - Sicherheit Fliegender Bauten (Zelte) - Spezifikation für beschichtete Textilien für Zelte und zugehörige Bauten This European Standard was approved by CEN on 20 December 2013.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of 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, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15619:2014 ESIST EN 15619:2014
EN 15619:2014 (E) 2 Contents Page Foreword .4 Introduction .5 1 Scope .6 2 Normative references .6 3 Terms and definitions .6 4 General description of coated fabrics intended for tents.7 5 Characteristics relating to coated fabrics .8 6 Requirements . 10 7 Information provided by the coated fabric producer . 13 Annex A (normative)
Artificial ageing by long term exposure to the combination of UV irradiation, elevated temperature and water . 14 A.1 General . 14 A.2 Exposition programme . 14 A.3 UV cycle . 14 A.4 Moisture cycle . 14 A.5 Preparation of specimens . 14 A.6 Procedure . 15 A.7 Measurements after ageing . 15 A.8 Test report . 15 Annex B (normative)
Coating adhesion . 16 B.1 General . 16 B.2 Preparation of the test specimens . 16 B.3 Welding . 16 B.4 Testing . 16 B.5 Test report . 17 Annex C (informative)
Weld resistance recommendation. 18 C.1 General . 18 C.2 Weld resistance. 18 C.3 Preparation of test specimens and test procedure . 18 C.4 Test report . 19 Annex D (informative)
Assessment of conformity . 20 D.1 General . 20 D.2 Type tests . 20 D.3 Factory production control . 20 SIST EN 15619:2014
EN 15619:2014 (E) 3 D.4 Testing of the finished products . 21 D.5 Inspection and testing . 22 D.6 Traceability . 22 D.7 Marking . 22 Bibliography . 23
SIST EN 15619:2014
EN 15619:2014 (E) 4 Foreword This document (EN 15619:2014) has been prepared by Technical Committee CEN/TC 248 “Textiles and textile products”, the secretariat of which is held by BSI. 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 September 2014 and conflicting national standards shall be withdrawn at the latest by September 2014. 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 15619:2008+A1:2010. The main changes in comparison with the previous edition include: — the normative references have been updated; — use of the expression “coated fabric producer” instead of “manufacturer” throughout the document; — subclause 5.9 “ Reaction to fire” updated to include an alternative test method related to fire behaviour,
used to determine the “Euroclasses”; — Clause 6 “Requirements” has been updated to include:
— explanation to determine the product profile; — separate tables introduced tables (one table per performance) to avoid confusion when determining the product profile; — a specific codification letter is used for each performance; — a fourth performance level has been added to Tables 4 and 8 (elongation), Tables 5 and 9 (residual deformation);
— creation of a new Clause 7, Information provided by the coated fabric producer; — addition of subclause A.8 “Test report”; — Annex C has been deleted and references to this annex replaced by reference to EN 15977. 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, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 15619:2014
EN 15619:2014 (E) 5 Introduction The purpose of this European Standard is to specify the characteristics, the requirements and the test methods for coated fabrics intended for temporary structure and tents. Particular care has been taken not to come in conflict with the items that have already been treated in EN 13782. This European Standard has been drawn up according to past experience and risk analysis. The content of this European Standard collects the different existing national regulations and refers to the different European test standards available for coated fabrics. This European Standard also introduces a system of levels. It is not possible to divide coated fabric for tents into just a few performance levels, because of the enormous variety of conditions of use. This European Standard proposes different level of performance (level F1, F2, F3, for examples) for each characteristic – or T1, T2, T3, T4 for the fire behaviour. This allows choice of the appropriate level for each characteristic and thus enables the composition of a “product profile”, adapted to each specific type of use. This means, for example, that for small tents exposed to low wind and snow loads but high exposition to sun light, a mechanical resistance level F3 may be required combined with a colour fastness level C1. This European Standard specifies requirements which are useful for design, calculation, manufacture, installation, maintenance, operation, examination and testing of coated fabric. The informative Annex D gives recommendations regarding the assessment of conformity of the production. The informative Annex C gives recommendations regarding the weld resistance. SIST EN 15619:2014
EN 15619:2014 (E) 6 1 Scope This European Standard specifies the characteristics, requirements and test methods for coated fabric intended for mobile, temporary installed tents (see 3.3) and related structures. Plastic film and material other than coated fabrics are not covered by this European Standard. 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 1875-3, Rubber- or plastics- coated fabrics - Determination of tear strength - Part 3: Trapezoidal method EN 14115, Textiles - Burning behaviour of materials for marquees, large tents and related products - Ease of ignition EN 15977:2011, Rubber or plastic coated fabrics - Mechanical properties - Determination of the elongation under load and the residual deformation EN 20105-A02, Textiles - Tests for colour fastness - Part A02: Grey scale for assessing change in colour (ISO 105-A02) EN ISO 846, Plastics - Evaluation of the action of microorganisms (ISO 846) EN ISO 1421, Rubber- or plastics-coated fabrics - Determination of tensile strength and elongation at break (ISO 1421) EN ISO 2286-2, Rubber- or plastics-coated fabrics - Determination of roll characteristics - Part 2: Methods for determination of total mass per unit area, mass per unit area of coating and mass per unit area of substrate (ISO 2286-2) EN ISO 2411, Rubber- or plastics-coated fabrics - Determination of coating adhesion (ISO 2411) EN ISO 4892-3, Plastics - Methods of exposure to laboratory light sources - Part 3: Fluorescent UV lamps (ISO 4892-3) EN ISO 11925-2, Reaction to fire tests - Ignitability of products subjected to direct impingement of flame - Part 2: Single-flame source test (ISO 11925-2) ISO 1420, Rubber- or plastics-coated fabrics - Determination of resistance to penetration by water 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 initial approval design and calculation review, verification, examinations and tests executed before granting a permit for tent operation SIST EN 15619:2014
EN 15619:2014 (E) 7 3.2 membrane joint junction of two coated fabric membrane surfaces executed by a sewn, welded, glued or clamped connection 3.3 tent mobile, temporary installed structure enclosure or open building, excluding camping tents EXAMPLE Marquee, hangar, tent-hall, booth. 3.4 surface top coating additional protection of the surface of coated fabric against soiling and discolouration 3.5 product family total range of products within specific variability limits (defined by the coated fabric producer or a technical specification) of the product parameters and, if appropriate, of the final use parameters for which the specified characteristics do not change (do not deteriorate) Note 1 to entry: The test results obtained from any one product within the family are valid for all other products within the family. 4 General description of coated fabrics intended for tents The yarns are in most cases woven into fabrics (some could be based on warp-knitted fabrics1) . Coatings on one or both sides guarantee the integrity, contribute to the protection of the fabric against mechanical damage, atmospheric influence, and also against damage caused by animals, plant, and chemical agents. Coatings may be covered by a top coating providing additional protection of the surface against soiling and discoloration.
Key 1 top coating 2 fabric 3 coating Figure 1 — Schema of a cross section of a woven fabric coated on both sides
1) In the cases of warp-knitted fabrics, the requirements of the Tables 1 to10 remain identical, "warp" meaning the warp direction and "weft" meaning the course direction. SIST EN 15619:2014
EN 15619:2014 (E) 8 5 Characteristics relating to coated fabrics 5.1 Mass per unit area The mass per unit area of the coated fabric shall be measured in accordance with EN ISO 2286-2. 5.2 Tensile mechanical behaviour Tensile strength shall be measured according to method 1 of EN ISO 1421. Tensile properties measured by means of EN ISO 1421 monoaxial tensile test in warp and weft direction are most of the time sufficient for design. 5.3 Tear strength In order to assess the risk of propagation of a tear due to lack of quality of the coated fabric or to an accident, the tear strength performances of a coated fabric shall be measured according to EN 1875-3. 5.4 Coating adhesion The adhesion between the base fabric and the coating layer of the membrane material shall be assumed by coating adhesion tests according to Annex B. 5.5 Dimensional stability During its life, the tent membrane made up of coated fabric is submitted to many environmental loads (wind, snow, rain) and many mounting and dismantling of the structure. In order to limit any dimensional change of the membrane panels during the life of the tent, the fabric shall be dimensionally stable. The dimensional stability of the fabric shall be measured in both directions according to EN 15977. For tents exposed to elevated temperatures during their use, an optional test is proposed according to EN 15977:2011 including a heat exposure (Clause 7) before mechanical loading. 5.6 Colour fastness to weathering and light The samples are exposed according to Annex A. Colour fastness is assessed by comparison with the grey scale and the specimens exposed for 2 000 h to artificial ageing and the non-exposed specimens. The ageing procedure detailed in Annex A is based on EN ISO 4892-3 exposure mode 1 (UV, moisture cycle, and elevated temperature) that simulate the outdoor natural ageing. 5.7 Susceptibility to the development of microorganisms In some climatic and environmental conditions, microorganisms may fix and develop on the surface of the coating. Their presence may damage the coating layer itself (discoloration, degradation of plastic coating) and may also hinder the use of the coated fabric membrane. The coated fabric producer shall ensure that the coated fabric is treated with adapted treatment or sufficiently resistant. This property shall be tested according to EN ISO 846. 5.8 Appearance Inspection of the appearance of membrane is important not only from an aesthetic point of view, but also from the aspect of examining for the presence of defects causing structural problems and of obstructions during usage. Appearance can be inspected visually or by microscopy. SIST EN 15619:2014
EN 15619:2014 (E) 9 The possible inspection items are: a) thickness of protective coating on the surface of yarns; b) defects on yarns and their arrangement; c) cracking of the coating and adherence of dirt, stains and foreign matter; d) other defects which may cause obstruction in usage. Inspection of those items may be carried out according to sampling plans of a single lot of membrane material. Judgement criteria for the inspection items are determined in accordance with the usage and grade of membrane materials. Due to subjective approach and lack of standardized method, there is no requirement about this item described in Clause 6. 5.9 Reaction to fire 5.9.1 General In order to protect peoples against the risk of full development of fire, the coated fabrics used for tent or related structures shall have an appropriate reaction to fire behaviour. For this purpose, the coated fabrics shall be tested according to EN 14115. The coated fabrics used for tent covering, walls, textile decorations and related applications inside tents shall be classified in accordance with the following classification system. Materials shall be classified in four categories T1, T2, T3, or T4 (5.9.2 to 5.9.5) or declared “Non classified” (5.9.6). As an alternative, coated fabrics intended for mobile, temporary installed tents (see 3.3) and related structures can also be tested according to EN ISO 11925-2 and EN 13823, and classified according to EN 13501-1 (B, C, D or E). WARNING — It should be borne in mind that there is no validated correlation between the “T classification”, according to the present document, and the “Euroclass”, according to EN 13501-1. 5.9.2 Level T1 During the test, afterflame times shall not exceed 5 s in any of the specimens tested. Any glowing propagation effect shall not exceed 25 cm from the lower edge of the specimen. If there is any fall of droplets or particles which continue to burn after being in contact with the floor of the apparatus, the material is classified T4. If burning droplets or particles do not burn after being in contact with the floor, they are not taken into account. Material with a duration of flaming not exceeding 5 s and that opens and does not allow any contact with the pilot flame, shall be subjected and pass the complementary test according to EN ISO 11925-2 with the following testing parameters: — flame application: on the surface and at the bottom edge; — time of the flame application: 30 s; — requirement: the top of the flame shall not reach 150 mm from the application point of the flame before 60 s. In case of failure, the material shall be declared “Non classified”. SIST EN 15619:2014
EN 15619:2014 (E) 10 5.9.3 Level T2 The material is classified T2 if the following conditions are fulfilled: — the material is not classified T1; — the average value of the maximum length of the destroyed area from the lower edge of the test specimen is lower than 350 mm. If there is any fall of droplets or particles which continue to burn after being in contact with the floor of the apparatus, the material is classified T4. If burning droplets or particles do not burn after being in contact with the floor, they are not taken into account. 5.9.4 Level T3 The material is classified T3 if following conditions are fulfilled: — the material is classified neither T1 nor T2; — the average value of the maximum length of the destroyed area from the lower edge of the test specimen is higher than 350 mm and lower than 600 mm; — the average value of the maximum width of the destroyed area, covering that part of the test specimen between 450 mm and 600 mm from its lower edge, is lower than 90 mm. If there is any fall of droplets or particles which continue to burn after being in contact with the floor of the apparatus, the material is classified T4. If burning droplets or particles do not burn after being in contact with the floor, they are not taken into account. 5.9.5 Level T4 A material is classified T4 when it meet the requirements of level T1, T2, or T3 but falls of droplets or particles which continue to burn after being in contact with the floor of the apparatus are observed during the test. 5.9.6 Non classified materials If material does not meet the requirements of T1, T2, T3 or T4 level, this material is declared “Non classified” (N.C.). 6 Requirements This European Standard proposes different levels of performance (level F1, F2, F3, for example) for each characteristic. This allows choice of the appropriate level for each characteristic and thus enables the composition of a “product profile”, adapted to each specific type of use. This means that low mechanical resistance may be combined with, e.g. high colour fastness. When relevant, the levels shall be declared independently for both warp and weft (in this order). This means, for example: — that the tensile strength (F) of a product may be F1/F1 or F1/F3; — the tear strength (R) of the same product may be R1/R2 or R2/R3. NOTE A product classified F1 in warp and F2 in weft cannot be declared F1 and is declared F1/F2. SIST EN 15619:2014
EN 15619:2014 (E) 11 To ensure safe and durable performance, each characteristic of the tent covering membranes made up of coated fabric shall comply with the value and class declared by the coated fabric producer accordance with the requirements of Table 1 to Table 7, as well as with the requirements of 5.9 regarding the fire behaviour and, if required, Table 8 to Table 10. Table 1 — Tensile strength requirements for coated fabrics intended for tents and related structures
Characteristics Test method Requirements Units
level F1 level F2 level F3 1 Tensile strength at break Warp - before ageing EN ISO 1421, method 1 ≥ 280 ≥ 220 ≥ 180 daN / 5cm
Tensile strength at break Weft - before ageing EN ISO 1421, method 1 ≥ 280 ≥ 220 ≥ 180 daN / 5cm
Tensile strength at break (warp/weft) after ageing Annex A + EN ISO 1421, method 1
> 70 % of the initial declared value in both warp and weft daN / 5cm
Table 2 — Tear strength requirements for coated fabrics intended for tents and related structures
Characteristics Test method Requirements Units
level R1 level R2 level R3 2 Tear strength Warp EN 1875-3 ≥ 15 ≥ 12 ≥ 10 daN
Tear strength Weft EN 1875-3 ≥ 15 ≥ 12 ≥ 10 daN
Table 3 — Coating adhesion requirements for coated fabrics intended for tents and related structures
Characteristics Test method Requirements Units
level A1 level A2 level A3 3 Coating adhesion Warp EN ISO 2411
or Annex B ≥ 10 ≥ 9 ≥ 8 daN / 5cm
Coating adhesion Weft EN ISO 2411
or Annex B ≥ 10 ≥ 9 ≥ 8 daN / 5cm
Table 4 — Elongation requirements for coated fabrics intended for tents and related structures
Characteristics Test method Requirements Units
level E1 level E2 level E3 level E4 4 Elongation under load Warp EN 15977 ≤ 1 ≤ 2 ≤ 3 ≤ 4 % Elongation under load Weft EN 15977 ≤ 1 ≤ 2 ≤ 3 ≤ 4 % SIST EN 15619:2014
EN 15619:2014 (E) 12 Table 5 —Residual deformation requirements for coated fabrics intended for tents and related structures
Characteristics Test method Requirements Units
level D1 level D2 level D3 level D4 5 Residual deformation after loading (Warp) EN 15977 ≤ 0,4 ≤ 0,8 ≤ 1,2 ≤ 1,5 % Residual deformation after loading (Weft) EN 15977 ≤ 0,4 ≤ 0,8 ≤ 1,2 ≤ 1,5 % NOTE The requirements are based on the absolute value of the residual deformation. Table 6 — Colour fastness requirements for coated fabrics intended for tents and related structures
Characteristics Test method Requirements Units
level C1 level C2 level C3 6 Colour fastness to weathering and light Annex A and
scale (EN 20105-A02) ≥ 4 ≥ 3 ≥ 2 grey scale Table 7 — Microorganism development requirements for coated fabrics intended for tents and related structures
Characteristics Test method Requirements Units
level M1 level M2 level M3 7 Susceptibility to the development of microorganisms EN ISO 846 Method A: 1 Method A: 2 Method A: 3 _ Table 8 — Optional properties - Elongation under load after heat exposure
Characteristics Test method Requirements Units
level Eh1 level Eh2 level Eh3 level Eh4 8 Elongation under load after heat exposure Warp EN 15977:2011 including Clause 7 ≤ 1 ≤ 2 ≤ 3 ≤ 4 % Elongation under load after heat exposure Weft EN 15977:2011 including Clause 7 ≤ 1 ≤ 2 ≤ 3 ≤ 4 % SIST EN 15619:2014
EN 15619:2014 (E) 13 Table 9 — Optional properties - Residual deformation after heat exposure and load
Characteristics Test method Requirements Units
level Dh1 level Dh2 level Dh3 level Dh4 9 Residual deformation after heat exposure and load (Warp) EN 15977:2011 including Clause 7 ≤ 0,4 ≤ 0,8 ≤ 1,2 ≤ 1,5 % Residual deformation after heat exposure and load (Weft) EN 15977:2011 including Clause 7 ≤ 0,4 ≤ 0,8 ≤ 1,2 ≤ 1,5 % NOTE The requirements are based on the absolute value of the residual deformation. Table 10 — Optional properties – Water penetration
Characteristics Test method Requirements Units
level W1 level W2 level W3 10 Water penetration ISO 1420 ≥ 60 ≥ 40 ≥ 20 kPa NOTE In the design of the tent membrane, static and dynamic mechanical actions (pre-stressing, snow load and wind load), ageing and environmental influences are taken into account and a safety margin, applied to ensure safe use of the membrane is covered by EN 13782. All the samples, provided from new production, submitted to tests shall have an area wide enough for tests, and shall be taken from a part 100 cm or more from the end of the fabric roll in the longitudinal direction and 20 cm or more from the selvage. 7 Information provided by the coated fabric producer If the information, related to the product profile refers to the levels related to T, F, R, A, E, D, C, M, Eh, Dh or W, this information shall include the reference to this European Standard. SIST EN 15619:2014
EN 15619:2014 (E) 14 Annex A (normative)
Artificial ageing by long term exposure to the combination of UV irradiation, elevated temperature and water A.1 General This annex specifies the method for exposure of factory-made coated fabrics intended for tents to combined effects of long term outdoor exposure. The samples are exposed to the most aggressive components of weathering: ultraviolet radiation, moisture and heat. A.2 Exposition programme The samples shall be exposed continuously during (250 ± 6) cycles (representing around 2 000 h) according to “exposition mode 1” of EN ISO 4892-3 corresponding to an exposure cycle having a duration of 8 h (480 min). A.3 UV cycle The UV source shall be an array of fluorescent UV lamps of type I (UV-A 340
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