| Standardization field | Mechanical engineering |
| Technical committee | BAS/TC 47- Appliances and systems for heating and refrigeration |
| Term (EN) | gas side tightness |
| Definition (EN) | tightness of the hopper, combustion chamber, flueways and the boiler sections traversed by the flue gas in relation to the place of installation |
| Term (FR) | |
| Definition (FR) | |
| Term (DE) | |
| Definition (DE) | |
| Term (BS) | nepropusnost na strani dimnih gasova |
| Definition (BS) | nepropusnost uređaja za nasipanje, komore za sagorijevanje, dimnih kanala i dijelova kotla kroz koje struje dimni gasovi, u zavisnosti od mjesta instaliranja kotla |
| Term (HR) | |
| Definition (HR) | |
| Term (SR) | |
| Definition (SR) | |
| Date | 2021-08-31 |
| Standards | BAS EN 303-5:2021 |
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