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| ¿µÁøÄÚÆÛ·¹ÀÌ¼Ç Á¾ÇÕÄ«´Ù·Î±× |
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VELP Sensor SystemÀ» ÀÌ¿ëÇÑ Plastic Biodegradability ÃøÁ¤ |
VELP Sensor System ÀÇ Respirometric Sensor System À» Ȱ¿ëÇϸé Plastic Biodegradability (ÇÃ¶ó½ºÆ½ »ýºÐÇØ¼º) À» Á¤·®ÀûÀ¸·Î ÃøÁ¤ÇÒ ¼ö ÀÖ½À´Ï´Ù.
Plastic Biodegradability (ÇÃ¶ó½ºÆ½ »ýºÐÇØ¼º) Æò°¡´Â ´Ù¾çÇÑ ºÐÇØ ȯ°æ¿¡¼ ÇÃ¶ó½ºÆ½ÀÌ ¾ó¸¶¸¸¿¡ ºÐÇØµÇ´ÂÁö ¾Ë¾Æº¸´Â ½ÃÇèÀÔ´Ï´Ù. »ýºÐÇØ¼º ½ÃÇè Æò°¡´Â »ê¾÷Àû ÅðºñÈ Á¶°Ç,
°¡Á¤¿ë ÅðºñÈ Á¶°Ç, ÀÚ¿¬Åä¾ç Á¶°Ç, ÇØ¾ç ȯ°æ Á¶°Ç¿¡¼ ¼öÇàµÇ°í ÀÖ½À´Ï´Ù. ÀÌ·¯ÇÑ Æò°¡¸¦ ÅëÇØ ÀÏȸ¿ë ÄÅÀ̳ª Æ÷ÀåÀç, ºÀÅõ¿Í °°Àº Á¦Ç°µéÀÇ Ä£È¯°æ¼ºÀ» °ËÁõÇϰí ÀÖ½À´Ï´Ù.
±¹³»ÀÇ KCL¿¡¼µµ »ýºÐÇØ¼º ÇÃ¶ó½ºÆ½ ¼ÒÀç, ºÎǰ, Á¦Ç°ÀÇ Ç¥ÁØ ½ÃÇèÀ» ÁøÇàÇϰí ÀÖ°í, ÇØ¿Ü¿¡¼µµ ÀÎÁõ ½ÃÇèÀÌ ÁøÇàµÇ°í ÀÖ½À´Ï´Ù.

            Respirometric Snsor System 6 for Plastic Biodegradability
VELP Resprometric Sensor System À» ÀÌ¿ëÇØ ¼ö¿ë¾× ¶Ç´Â Åä¾ç ½Ã·á¿¡¼ Plastic Biodegradability ¸¦ ÃøÁ¤ÇÒ ¼ö ÀÖ½À´Ï´Ù. ¼Ò°³ µå¸®´Â ¹æ¹ý ¿Ü¿¡µµ ´Ù¾çÇÑ ÇÃ¶ó½ºÆ½ »ýºÐÇØ¼º Æò°¡ ¹æ¹ýÀÌ Á¸ÀçÇÕ´Ï´Ù.
Respirometric Sensor SystemÀ» ÀÌ¿ëÇØ ´Ù¾çÇÑ ¸ñÀûÀÇ ´Ù¾çÇÑ Á¶°Ç¿¡¼ ½ÃÇèÀÌ °¡´ÉÇÕ´Ï´Ù.
´ÙÀ½Àº Respirometric Sensor SystemÀ» ÀÌ¿ëÇÑ Åä¾ç¿¡¼ÀÇ Plastic Biodegradability ÃøÁ¤ ÀýÂ÷ÀÔ´Ï´Ù
Sample Preparation
The sample used is garden universal soil for plants with ready-to-use fertilizer effect and slow-release fertilizer.
The soil is prepared with the desired moisture content following as a reference the ISO-16072 - Soil Quality standard. The following analysis is performed:
| - |
measurement of the actual volume occupied by the soil (after adjustment of water content); |
| - |
measurement of the pH of the soil (which should be between 6 and 8); |
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moisture content. |
Incubation takes place in the dark at a temperature of 20¡ÆC ¡¾ 1¡ÆC. The following tests are set up:
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Blank (2 replicates) : the tests were carried out on 100g of soil using CO2 absorber. The pH of the solution was corrected to a value between 6.0 and 8.0; |
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Mater-Bi : as reference material (2 replicates): to the same quantities of soil used for blanks, add 200 mg of this reference material; the material is cut in quadrangular pieces of about 1 cm per side. |
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Microcrystalline cellulose : as reference material (2 replicates): at the same quantities of soil used for the blanks, add 200 mg of this reference material. |
Analysis Procedure
| 1.
| Set the incubator temperature to 20¡ÆC. |
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| 2.
| Connect the Wireless DataBoxTM and fill in the RESPIROSoftTM software database. |
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| 3.
| Weigh 200 mg of reference material in a beaker and add the soil. |
| 4.
| Introduce about 6 pellets of KOH into the alkali collector. |
| 5.
| Screw the RESPIROMETRIC Sensors onto each bottle and tighten. |
| 6.
| Place the system in the VELP FOC at the desired temperature. |
| 7.
| Wait about 30 minutes to reach the test temperature and for developing the typical initial pressure increase due to the vapor pressure and heating the air of the flask.
To remove this additional pressure, it is advisable, to vent the test bottles to atmospheric pressure (by briefly loosening the ring nut). |
| 8.
| Press START and run the test for 160 days or until a complete sample degradation. |
ÇÃ¶ó½ºÆ½ »ýºÐÇØ¼º ÃøÁ¤¿¡ ´ëÇÑ °ø½Ä ½ÃÇè¹ýÀº ISO 14851:2018 (¼ö¿ë¾×¿¡¼ÀÇ È£±â¼º »ýºÐÇØ¼º ÃøÁ¤), ISO 17556:2019 (Åä¾ç¿¡¼ÀÇ È£±â¼º »ýºÐÇØ¼º ÃøÁ¤) ÀÔ´Ï´Ù.
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