Tawada masu nuna haifuwa suna da mahimmanci don tabbatar da ingancin matakan haifuwa a cikin saitunan likita da masana'antu. Alamun suna aiki ta hanyar canza launi bayan fallasa zuwa takamaiman yanayin haifuwa, suna ba da bayyananniyar alamar gani cewa an cika sigogin haifuwa. Wannan labarin ya zayyana nau'ikan tawada masu nuna haifuwa: haifuwar tururi da tawada ethylene oxide. Duk tawada biyu sun bi ka'idodin ƙasa da ƙasa (GB18282.1-2015 / ISO11140-1: 2005) kuma suna ba da ingantaccen aiki ƙarƙashin madaidaicin zafin jiki, zafi, da yanayin lokacin fallasa. A ƙasa, muna tattauna zaɓuɓɓukan canza launi na kowane nau'i, suna nuna yadda waɗannan alamomi zasu iya sauƙaƙe tsarin tabbatar da haifuwa don aikace-aikace daban-daban.
Tawada Mai Haɓaka Haɓaka Tushen
Tawada ya dace da GB18282.1-2015 / ISO11140-1: 2005 kuma ana amfani dashi don gwaji da buƙatun aikin haifuwa kamar haifuwar tururi. Bayan fallasa zuwa tururi a 121 ° C na minti 10 ko a 134 ° C na minti 2, za a samar da launi mai haske. Zaɓuɓɓukan canza launi sune kamar haka:
| Samfura | Launi na farko | Launi Bayan Bakarawa |
| STEAM-BGB | Blue | Grey-Baƙar fata |
| STEAM-PGB | ruwan hoda | Grey-Baƙar fata |
| STEAM-YGB | Yellow | Grey-Baƙar fata |
| STEAM-CWGB | Kusa da fari | Grey-Baƙar fata |
Ethylene Oxide Haɓakar Ma'anar Tawada
Tawada ya dace da GB18282.1-2015 / ISO11140-1: 2005 kuma ana amfani dashi don gwaji da buƙatun aikin haifuwa kamar haifuwar ethylene oxide. A karkashin yanayi na ethylene oxide gas maida hankali na 600mg/L ± 30mg/L, zafin jiki na 54±1°C, da dangi zafi na 60±10% RH, wani bayyananne launi siginar za a samar bayan 20 minutes ± 15 seconds. Zaɓuɓɓukan canza launi sune kamar haka:
| Samfura | Launi na farko | Launi Bayan Bakarawa |
| EO-PYB | ruwan hoda | Yellow-Orange |
| EO-RB | Ja | Blue |
| EO-GB | Kore | Lemu |
| EO-OG | Lemu | Kore |
| EO-BB | Blue | Lemu |
Lokacin aikawa: Satumba-07-2024
