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distilled water is placed Moderators: Moderators Jump to page : 1 Now viewing page 1 [25 messages per page]	View previous thread :: View next thread
Yoga -> General Yoga	Message format

qizhen0926

Posted 2017-10-20 8:05 AM (#234902)
Subject: distilled water is placed

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with formaldehyde-free aluminum tape sealed, the measured surface area of ??450C square meters. Sealed in an ethylene resin bag and placed in a thermostatic chamber at a temperature of (20 ° C) for at least 1 day. 6.3.6 Test procedure 6.3.6.1 Formaldehyde collection.
The absorption vessel is filled with 20 mL. The distilled water is placed on the bottom of the test vessel and the sample is placed on the absorption container. The measuring device is placed at (20 ± 1) ? for 24 h. Distilled water absorbs the formaldehyde released from the specimen.
6.3.6.2 Quantitative determination of formaldehyde concentration according to GB / T17657-1999 4.12.6.2. 6.3.6.3 Standard curve drawing according to GB / T17657-1999 4.12.6.3 carried out. 6.3.6.4 The results show that the formaldehyde emission of artificial wood-based panel was measured.
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