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AS/NZS 4237 PDF
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Respiratory therapy equipment – Peak expiratory flow meters
| Published by | Publication Date | Number of Pages |
| AS/NZS | 09/19/1994 | 9 |
AS/NZS 4237 – Respiratory therapy equipment – Peak expiratory flow meters
Sets out requirements for simple mechanical, electro-mechanical, and electrical portable hand-held peak expiratory flow meters for self-monitoring of peak expiratory flow rate. Appendices include methods for determining accuracy and repeatability of flow meter output, effects of ageing and back pressure at constant flow.
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