Iyo EN877 yakajairwa inotsanangura zvinodikanwa zvekuita zvepombi dzesimbi, fittingsuyezvibatanidza zvavoinoshandiswa mumagetsi ekudhonza mvura muzvivako.EN877:2021ndiyo yazvino vhezheni yechiyero, ichitsiva yapfuura EN877:2006 vhezheni. Misiyano mikuru pakati peshanduro mbiri idzi maererano nekuyedzwa ndeiyi:
1. Test scope:
TS EN 877: 2006: Kunyanya inoedza zvivakwa zvemuchina uye yekuisa chisimbiso chepombi uye mafittings.
TS EN 877: 2021: Pahwaro hwekuyedzwa kwepakutanga, yakawedzera bvunzo zvinodiwa pakuita ruzha rwekuvharisa, kemikari inodzivirira kupisa, kuramba moto uye zvimwe zvinhu zvepombi system.
2. Nzira dzekuyedza:
TS EN 877: 2021 inogadziridza dzimwe nzira dzekuyedza kuti dziite zvesainzi uye zvine musoro, senge:Chemical corrosion resistance test: Mitsva yekuedza mhinduro uye nzira dzekuyedza dzinoshandiswa, sekushandisa pH2 sulfuric acid mhinduro pachinzvimbo cheyekutanga hydrochloric acid mhinduro, uye nekuwedzera corrosion kuramba bvunzo kune mamwe makemikari.
Acoustic performance bvunzo: Yakawedzerwa bvunzo zvinodiwa zveinzwi rekuvharidzira kuita kwepombi system, sekushandisa nzira yekumanikidza yekumanikidza kuyera kuvharwa kwepombi.
Muedzo wekuita moto: Yakawedzerwa bvunzo zvinodiwa pakuita kwemoto kuramba kuita kwepombi system, sekushandisa nzira yekudzivirira moto yekuyedza kuvimbika kwepombi system pasi pemamiriro emoto.EN 877: 2021 inoshandisa pendi ine moto inodzivirira giredhi A1
3. Test zvinodiwa:
EN 877: 2021 yakawedzera zvinodikanwa zvebvunzo kune zvimwe zviratidzo zvekuita, senge:Kusimba kwesimba: yakawedzera kubva pa150 MPa kusvika ku200 MPa.
Elongation: yakawedzera kubva 1% kusvika 2%.
Chemical corrosion resistance: Yakawedzerwa corrosion resistance zvinodiwa kune mamwe makemikari zvinhu, senge corrosion resistance zvinodiwa zvealkaline zvinhu zvakaita se sodium hydroxide uye potassium hydroxide.
4. Test report:
EN 877: 2021 ine zvakaomesesa zvinodiwa pane zviri mukati uye fomati yemushumo webvunzo, senge:Inoda kuti mushumo webvunzo ubatanidze ruzivo rwakadzama senge nzira dzekuyedza, mamiriro ebvunzo, mhinduro dzebvunzo, uye mhedzisiro.
Chirevo chebvunzo chinodiwa kuti chiburitswe neanoshanda bvunzo agency. Semuyenzaniso,DINSEN inosimbiswa neCASTCO.
Iyo EN877: 2021 yakajairwa yakazara uye yakasimba mukuyedza kupfuura EN877: 2006 yakajairwa, inoratidza kuvandudzwa kwetekinoroji uye zvinodiwa zvemusika muindasitiri yesimbi yesimbi pombi. Kuitwa kweiyo chiyero chitsva kuchabatsira kuvandudza mhando yeakakandirwa iron pombi zvigadzirwa uye kusimudzira kuchengetedzeka uye kuvimbika kwekuvaka madhiraivha masisitimu.
EN877:2021 vs EN877:2006
Nguva yekutumira: Mar-17-2025
