STN EN ISO 7231
| Name: | STN EN ISO 7231 |
| Validity: | Valid |
| Number of pages: | 24 |
| Language: |
EN
|
| Paper: | 14,10€ |
| Electronic version |
a) Only read (without ability to print and copy)
12,69€ b) Without ability to print, with ability to copy (printscreen) 14,10€ c) With ability to print and copy (printscreen) 18,33€ |
| Slovak title | Polymérne flexibilné ľahčené materiály. Stanovenie hodnoty priepustnosti vzduchu pri konštantnom poklese tlaku (ISO 7231: 2023) |
| English title | Polymeric materials, cellular, flexible - Determination of air flow value at constant pressure-drop (ISO 7231:2023) |
| Release Date: | 01. 12. 2023 |
| Date of withdrawal: | |
| ICS: | 83.100 |
| Sorting character/National clasification code | 64 0776 |
| Level of incorporation: | idt EN ISO 7231:2023, idt ISO 7231:2023 |
| Official Journal | 11/23 |
| Amendments | |
| Replaced by: | |
| Repleces: | STN EN ISO 7231:2011-01 (64 0776) |
| Note in Official Journal: | |
| Subject of the standard: | This document specifies two methods for determining the air flow value of flexible cellular polymeric materials: — method A, for conventional types of flexible cellular polymeric material; — method B, for all types of flexible cellular polymeric material, but especially for materials with a low permeability to air. For method B, two methods are specified in this document: — method B1: with manual measurement; — method B2: with automatic measurement. NOTE 1 Air flow values can be used to give an indication of the effects of formulation and production variables on the cellular structure. NOTE 2 In this document, the expression “conventional type of flexible cellular polymeric material” means types which are unsuitable for sealing purposes. |
| Preview: | Náhľad normy (PDF) |