{"id":24863,"date":"2025-12-19T14:55:25","date_gmt":"2025-12-19T13:55:25","guid":{"rendered":"https:\/\/akvapan.com\/?p=24863"},"modified":"2026-03-26T12:28:15","modified_gmt":"2026-03-26T11:28:15","slug":"laboratorijska-kontrola-plasticnih-cevi","status":"publish","type":"post","link":"https:\/\/akvapan.com\/en\/vesti\/laboratorijska-kontrola-plasticnih-cevi\/","title":{"rendered":"Za\u0161to je laboratorijska kontrola klju\u010dna za kvalitet cevi"},"content":{"rendered":"
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U<\/strong> <\/b><\/span>industriji <\/span>plasti\u010dnih <\/span>cevi <\/span>postoji <\/span>jedna <\/span>stvar <\/span>koju <\/span>vreme <\/span>uvek <\/span>razotkrije, <\/span>a <\/span>to <\/span>je <\/span>kvalitet. <\/span>Cev <\/span>mo\u017ee <\/span>izgledati <\/span>potpuno <\/span>isto <\/span>na <\/span>prvi <\/span>pogled. <\/span>Mo\u017ee <\/span>imati <\/span>identi\u010dan <\/span>pre\u010dnik, <\/span>boju, <\/span>oznake <\/span>i <\/span>\u010dak <\/span>pribli\u017eno <\/span>jednaku <\/span>te\u017einu. <\/span>Ono <\/span>\u0161to <\/span>se <\/span>ne <\/span>vidi <\/span>golim <\/span>okom <\/span>\u010desto <\/span>je <\/span>presudno <\/span>za <\/span>to <\/span>kako <\/span>\u0107e <\/span>se <\/span>cev <\/span>pona\u0161ati <\/span>kroz <\/span>deset, <\/span>dvadeset <\/span>ili <\/span>trideset <\/span>godina <\/span>upotrebe.<\/span><\/b><\/p>

Upravo <\/span>tu <\/span>nastupa <\/span>laboratorijska <\/span>kontrola.<\/span><\/p>

U <\/span>Akvapan <\/span>in\u017eenjeringu <\/span>se <\/span>ve\u0107 <\/span>godinama <\/span>bavimo <\/span>proizvodnjom <\/span>cevi <\/span>koje <\/span>zavr\u0161avaju <\/span>in <\/span>najzahtevnijim <\/span>sistemima, <\/span>vodovodnim <\/span>mre\u017eama, <\/span>gasovodima, <\/span>kanalizacionim <\/span>instalacijama, <\/span>za\u0161titi <\/span>elektro <\/span>i <\/span>telekom <\/span>kablova, <\/span>kao <\/span>i <\/span>in <\/span>industrijskim <\/span>i <\/span>poljoprivrednim <\/span>postrojenjima.<\/span><\/p>

Da <\/span>bi <\/span>cev <\/span>bila <\/span>zaista <\/span>pouzdana, <\/span>nije <\/span>dovoljno <\/span>da <\/span>bude <\/span>proizvedena <\/span>od <\/span>dobrog <\/span>materijala. <\/span>Ona <\/span>mora <\/span>biti <\/span>ispitana, <\/span>dokumentovana <\/span>i <\/span>potvr\u0111ena <\/span>kroz <\/span>precizne <\/span>akreditovane <\/span>metode.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Tabela sadr\u017eaja<\/h2>
  1. Za\u0161to <\/span>je <\/span>laboratorijska <\/span>kontrola <\/span>va\u017ena<\/span><\/li>
  2. Akreditovana <\/span>laboratorija <\/span>i <\/span>standardi<\/span><\/li>
  3. Najva\u017enija <\/span>ispitivanja <\/span>plasti\u010dnih <\/span>cevi<\/span><\/li>
  4. Mehani\u010dka <\/span>i <\/span>fizi\u010dka <\/span>svojstva <\/span>materijala<\/span><\/li>
  5. Dimenzionalna <\/span>kontrola <\/span>cevi<\/span><\/li>
  6. Kontrola <\/span>infrastrukturnih <\/span>elemenata<\/span><\/li>
  7. Zaklju\u010dak<\/span><\/li>
  8. Naj\u010de\u0161\u0107a <\/span>pitanja<\/span><\/li><\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    Akreditovana laboratorija i standardi ispitivanja<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    Laboratory <\/span>Akvapan <\/span>in\u017eenjeringa <\/span>akreditovana <\/span>je <\/span>prema <\/span>standardu <\/span>SRPS <\/span>ISO\/<\/span>IEC <\/span>17025:<\/span>2017. <\/span>Ovaj <\/span>standard <\/span>potvr\u0111uje <\/span>da <\/span>su <\/span>svi <\/span>testovi <\/span>sprovedeni <\/span>prema <\/span>me\u0111unarodno <\/span>priznatim <\/span>metodama <\/span>i <\/span>da <\/span>su <\/span>rezultati <\/span>objektivni <\/span>i <\/span>ponovljivi.<\/span><\/p>

    Laboratory <\/span>funkcioni\u0161e <\/span>nezavisno <\/span>od <\/span>proizvodnog <\/span>pogona. <\/span>To <\/span>zna\u010di <\/span>da <\/span>svaka <\/span>analiza <\/span>predstavlja <\/span>objektivnu <\/span>kontrolu <\/span>proizvoda.<\/span><\/p>

    Kupci, <\/span>projektanti <\/span>i <\/span>izvo\u0111a\u010di <\/span>radova <\/span>\u017eele <\/span>sigurnost. <\/span>\u017dele <\/span>dokaz <\/span>da <\/span>cev <\/span>ispunjava <\/span>tehni\u010dke <\/span>zahteve <\/span>i <\/span>da <\/span>mo\u017ee <\/span>pouzdano <\/span>funkcionisati <\/span>tokom <\/span>dugog <\/span>vremenskog <\/span>perioda.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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    Najva\u017enija laboratorijska ispitivanja plasti\u010dnih cevi<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    Ve\u0107ina <\/span>klju\u010dnih <\/span>karakteristika <\/span>cevi <\/span>ne <\/span>mo\u017ee <\/span>se <\/span>proceniti <\/span>vizuelno. <\/span>Zato <\/span>laboratorija <\/span>analizira <\/span>fizi\u010dko-<\/span>mehani\u010dka <\/span>i <\/span>hemijska <\/span>svojstva <\/span>materijala.<\/span><\/p>

    Ispituju <\/span>se <\/span>stabilnost <\/span>materijala, <\/span>otpornost <\/span>na <\/span>pritisak, <\/span>pona\u0161anje <\/span>pri <\/span>razli\u010ditim <\/span>temperaturama, <\/span>\u010dvrsto\u0107a <\/span>i <\/span>dugotrajna <\/span>izdr\u017eljivost.<\/span><\/p>

    Posebno <\/span>kod <\/span>HDPE <\/span><\/a>cevi<\/a> <\/span>koje <\/span>transportuju <\/span>fluide <\/span>pod <\/span>pritiskom, <\/span>veoma <\/span>je <\/span>va\u017eno <\/span>analizirati <\/span>pona\u0161anje <\/span>materijala <\/span>i <\/span>kvalitet <\/span>zavarenih <\/span>spojeva.<\/span><\/p>

    Jedan <\/span>od <\/span>najva\u017enijih <\/span>testova <\/span>je <\/span>ispitivanje <\/span>pod <\/span>pritiskom, <\/span>gde <\/span>se <\/span>cevi <\/span>izla\u017eu <\/span>dugotrajnom <\/span>optere\u0107enju <\/span>kako <\/span>bi <\/span>se <\/span>simulirali <\/span>realni <\/span>uslovi <\/span>eksploatacije.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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    Mehani\u010dka i fizi\u010dka svojstva koja se ispituju<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    U <\/span>laboratoriji <\/span>se <\/span>sprovodi <\/span>vi\u0161e <\/span>razli\u010ditih <\/span>mehani\u010dkih <\/span>i <\/span>fizi\u010dkih <\/span>testova <\/span>koji <\/span>omogu\u0107avaju <\/span>preciznu <\/span>procenu <\/span>kvaliteta <\/span>proizvoda.<\/span><\/p>

    Tabela <\/span>najva\u017enijih <\/span>laboratorijskih <\/span>testova
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    Vrsta <\/span>ispitivanja<\/span><\/th>\u0160ta <\/span>se <\/span>proverava<\/span><\/th>Za\u0161to <\/span>je <\/span>va\u017eno<\/span><\/th><\/tr><\/thead>
    Ispitivanje <\/span>pod <\/span>pritiskom<\/span><\/td>otpornost <\/span>cevi <\/span>na <\/span>dugotrajni <\/span>pritisak<\/span><\/td>sigurnost <\/span>vodovodnih <\/span>i <\/span>gasnih <\/span>sistema<\/span><\/td><\/tr>
    Zatezna <\/span>svojstva<\/span><\/td>\u010dvrsto\u0107a <\/span>materijala <\/span>pri <\/span>optere\u0107enju<\/span><\/td>otpornost <\/span>na <\/span>pucanje<\/span><\/td><\/tr>
    NPT <\/span>test<\/span><\/td>sporo <\/span>\u0161irenje <\/span>pukotine<\/span><\/td>dugotrajna <\/span>stabilnost <\/span>materijala<\/span><\/td><\/tr>
    FNCT <\/span>test<\/span><\/td>otpornost <\/span>na <\/span>naprezanje<\/span><\/td>trajnost <\/span>HDPE <\/span>materijala<\/span><\/td><\/tr>
    Puzanje <\/span>polietilena<\/span><\/td>deformacija <\/span>tokom <\/span>vremena<\/span><\/td>stabilnost <\/span>sistema<\/span><\/td><\/tr>
    OIT <\/span>test<\/span><\/td>oksidaciona <\/span>stabilnost <\/span>materijala<\/span><\/td>otpornost <\/span>na <\/span>starenje<\/span><\/td><\/tr>
    MFR <\/span>test<\/span><\/td>viskozitet <\/span>rastopljenog <\/span>materijala<\/span><\/td>kontrola <\/span>kvaliteta <\/span>proizvodnje<\/span><\/td><\/tr>
    Termi\u010dka <\/span>stabilnost<\/span><\/td>pona\u0161anje <\/span>pri <\/span>visokim <\/span>temperaturama<\/span><\/td>stabilnost <\/span>strukture <\/span>materijala<\/span><\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    Dimenzionalna kontrola cevi<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    Dimenzionalna <\/span>ta\u010dnost <\/span>je <\/span>jedan <\/span>od <\/span>klju\u010dnih <\/span>faktora <\/span>za <\/span>pravilno <\/span>funkcionisanje <\/span>cevovoda.<\/span><\/p>

    U <\/span>laboratoriji <\/span>se <\/span>proveravaju<\/span><\/p>