Análise crítica das especificações técnicas em processos de licitação para aquisição de autoclaves

Rodrigues, Sandoval Barbosa; Souza, Rafael Queiroz de; Doro, Luciano Lemos; Graziano, Kazuko Uchikawa; Erzinger, Gilmar Sidnei

doi:10.5327/z1414-4425202100010003

Cited by 1 publication

(2 citation statements)

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“…The presence of NCGs has a negative impact on material and patient safety, causing failures in the sterilization cycles, promoting wet loads, damaging materials during terminal sterilization [ 28 ]. The water degassing can occur through devices for detection of NCGs or by heating, corroborating the qualification of steam quality [ 21 ], although, in Brazil, this requirement is not specified for the equipment [ 29 ]. Purified water was kept at 85°C to inhibit microbiological growth, and softened water was maintained at 90°C to reduce the temperature impact for industrial steam generators and boilers supply.…”

Section: Discussionmentioning

confidence: 99%

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Analysis of water quality over non-condensable gases concentration on steam used for sterilization

Miguel¹,

Laranjeira²,

Ishii

et al. 2022

PLoS ONE

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Background Non-condensable gases (NCGs) are all gases that do not undergo liquefaction during the saturated steam sterilization process. During a sterilization cycle, the NCGs presence inside the chamber is one of the biggest threats to the sterilization process compromising process validation and product quality. Methods In this work, 170 testing of NCGs concentrations performed between September 2016 and August 2021 were carried out by Orionce Serviços de Metrologia Ltda (Barueri, SP, Brazil), according to EN285:2015 procedure. For steam generation, the types of water used were softened water (SW), one-step reverse osmosis (RO), purified water (PW), and water for injection (WFI). The data obtained were analyzed using Minitab® software, version 18.1, to identify a relationship between the water quality used for steam generation and the concentration of non-condensable gases determined into equipment qualification. Findings From total tests performed, 109 tests passed, and 61 tests failed, representing 64.2% and 35.8%, respectively. A higher failure rate was observed in terms of concentration of non-condensable gases in systems that used purified water for steam generation (64.7%), followed by softened water (55.6%), one-step reverse osmosis (42.9%), and water for injection (7.6%). Conclusion System processes using WFI for steam generation showed better results for steam quality approvement, in terms of NCGs concentration, compared to softened, purified, or reverse osmosis water treatments in the concentration of non-condensable gases in steam used for sterilization processes of industrial utilities.

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Section: Discussionmentioning

confidence: 99%

“…sterilization [28]. The water degassing can occur through devices for detection of NCGs or by heating, corroborating the qualification of steam quality [21], although, in Brazil, this requirement is not specified for the equipment [29]. Purified water was kept at 85˚C to inhibit…”

Section: Plos Onementioning

confidence: 99%