Ma'aunin EN877 ya ƙayyade buƙatun aiki na kayan aikibututun ƙarfe da aka jefa, kayan aikikumamasu haɗa suana amfani da shi a tsarin magudanar ruwa mai nauyi a gine-gine.EN877:2021shine sabon sigar ma'aunin, wanda ya maye gurbin tsohon sigar EN877:2006. Babban bambance-bambancen da ke tsakanin sigar biyu dangane da gwaji sune kamar haka:
1. Gwaji:
EN 877: 2006: Babban aikin bututu da kayan aiki shine gwada halayen injiniya da halayen rufewa.
EN877: 2021: Dangane da gwajin asali, an ƙara buƙatun gwaji don aikin hana sauti, juriya ga lalata sinadarai, juriya ga gobara da sauran fannoni na tsarin bututun mai.
2. Hanyoyin gwaji:
EN877:2021 ya sabunta wasu hanyoyin gwaji don sanya su zama mafi kimiyya da ma'ana, kamar:Gwajin juriya ga lalata sinadarai: Ana amfani da sabbin hanyoyin gwaji da hanyoyin gwaji, kamar amfani da maganin pH2 sulfuric acid maimakon maganin hydrochloric acid na asali, da kuma ƙara gwaje-gwajen juriya ga lalata don ƙarin sinadarai.
Gwajin Aikin Acoustic: An ƙara buƙatun gwaji don aikin rufin sauti na tsarin bututun, kamar amfani da hanyar matakin matsin sauti don auna rufin sauti na tsarin bututun.
Gwajin aikin wuta: An ƙara buƙatun gwaji don aikin juriyar wuta na tsarin bututun mai, kamar amfani da hanyar iyakance juriyar wuta don gwada ingancin tsarin bututun mai a ƙarƙashin yanayin wuta.EN877: 2021: An yi amfani da fenti mai matakin A1 mai juriya ga wuta
3. Bukatun gwaji:
EN877:2021 ya ƙara buƙatun gwaji don wasu alamun aiki, kamar:Ƙarfin tauri: ya ƙaru daga 150 MPa zuwa 200 MPa.
Tsawaitawar iska: ya karu daga 1% zuwa 2%.
Juriyar Tsatsa ta Sinadarai: Ƙarin buƙatun juriya ga tsatsa don ƙarin sinadarai, kamar buƙatun juriya ga tsatsa don abubuwan alkaline kamar sodium hydroxide da potassium hydroxide.
4. Rahoton gwaji:
EN877:2021 yana da ƙa'idodi masu tsauri kan abubuwan da ke cikin rahoton gwajin da kuma tsarinsa, kamar:Yana buƙatar rahoton gwajin ya ƙunshi cikakkun bayanai kamar hanyoyin gwaji, yanayin gwaji, sakamakon gwaji, da kuma ƙarshe.
Ana buƙatar hukumar gwaji mai ƙwarewa ta bayar da rahoton gwajin. Misali,DINSEN tana da takardar shaidar CASTCO.
Ma'aunin EN877:2021 ya fi cikakken bayani kuma ya fi tsauri wajen gwaji fiye da ma'aunin EN877:2006, wanda ke nuna sabbin ci gaban fasaha da buƙatun kasuwa a masana'antar bututun ƙarfe na siminti. Aiwatar da sabon ma'aunin zai taimaka wajen inganta ingancin kayayyakin bututun ƙarfe na siminti da kuma inganta aminci da amincin tsarin magudanar ruwa na gine-gine.
EN877:2021 da EN877:2006
Lokacin Saƙo: Maris-17-2025
