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Standard Test Method for Polyurethane Raw Materials: Determination of Hydrolyzable Chlorine of Isocyanates
| 분야 | 08.02 : 플라스틱 (Ⅱ) |
|---|---|
| 적용범위 | 1.1 This test method determines the hydrolyzable chlorine content of toluene-2,4-diisocyanate, toluene-2,6-diisocyanate, or mixtures of the two. It is acceptable to apply this test method to other isocyanates of suitable solubility. (See Note 1.) The main sources of hydrolyzable chlorine in the isocyanates are carbamoyl chloride and dissolved phosgene. Both of these compounds react with alcohols and water, forming ureas, carbamates, carbon dioxide, and hydrochloric acid. (See Note 2.) 1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Note 1: It is possible that this test method is applicable to crude polymeric isocyanates. However, the precision with crude polymeric isocyanates has not been established. Note 2: This standard is identical to ISO 15028. 1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
| 국제분류(ICS)코드 | 83.080.10 : 열경화재 |
| 페이지수 | 3 |
| Edition | 20 |
| No. | 표준번호 | 표준명 | 발행일 | 상태 |
|---|---|---|---|---|
| 1 | ASTM D4663-20 | Standard Test Method for Polyurethane Raw Materials: Determination of Hydrolyzable Chlorine of Isocyanates | 2020-04-01 | 표준 |
| 2 | ASTM D4663-20 REDLINE | Standard Test Method for Polyurethane Raw Materials: Determination of Hydrolyzable Chlorine of Isocyanates | 2020-04-01 | 표준 |
| 3 | ASTM D4663-15 | Standard Test Method for Polyurethane Raw Materials: Determination of Hydrolyzable Chlorine of Isocyanates | 2015-05-01 | 구판 |
| 4 | ASTM D4663-15 REDLINE | Standard Test Method for Polyurethane Raw Materials: Determination of Hydrolyzable Chlorine of Isocyanates | 2015-05-01 | 구판 |
| 5 | ASTM D4663-10 | Standard Test Method for Polyurethane Raw Materials Determination of Hydrolyzable Chlorine of Isocyanates | 2004-03-01 | 구판 |
| 6 | ASTM D4663-98(2004) | Standard Test Method for Polyurethane Raw Materials Determination of Hydrolyzable Chlorine of Isocyanates | 2004-03-01 | 구판 |
| 7 | ASTM D4663-98 | Standard Test Method for Polyurethane Raw Materials Determination of Hydrolyzable Chlorine of Isocyanates | 1998-07-10 | 구판 |
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