ISO 9852:2007 PDF
Unplasticized poly(vinyl chloride) (PVC-U) pipes — Dichloromethane resistance at specified temperature (DCMT) — Test method
Unplasticized poly(vinyl chloride) (PVC-U) pipes — Dichloromethane resistance at specified temperature (DCMT) — Test method
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 6
- Дата публикации:
- 4 мая 2007 г.
- Издание:
- ISO IS 9852 edition 2 version 1
- ICS:
- 23.040.20
ISO 9852:2007 specifies a method for determining the resistance of unplasticized poly(vinyl chloride) (PVC-U) pipes to dichloromethane at a specified temperature (DCMT). It is applicable to all PVC-U pipes, irrespective of their intended use. The method can be used as a rapid means of quality control during manufacture.
Abstract
Overview
ISO 9852:2007 specifies a standardized test method - Dichloromethane Resistance at a Specified Temperature (DCMT) - to determine the resistance of unplasticized poly(vinyl chloride) (PVC‑U) pipes to dichloromethane. Applicable to all PVC‑U pipes regardless of intended use, the method is designed for rapid quality control during manufacture and gives an indication of material gelation and long‑term performance.
Key topics and requirements
- Test principle: Immerse a chamfered pipe test piece in dichloromethane at a specified temperature T for (30 ± 1) minutes, then allow dripping in a water layer before drying and inspection.
- Test pieces: Cut to 160 mm length; typically three pieces unless the referring standard specifies otherwise. Chamfer one end according to wall thickness:
- e
Технические детали
- Технический комитет
- ISO/TC 138/SC 5 - General properties of pipes, fittings and valves of plastic materials and their accessories -- Test methods and basic specifications
- SKU
- ISO 9852:2007
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