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Doplňujúce informácie

ASTM D1786-21

Standard Specification for Toluene Diisocyanate

NORMA vydaná dňa 1.7.2021

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Dostupnosť	SKLADOM
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50.70 €

Informácie o norme:

Označenie normy: ASTM D1786-21
Dátum vydania normy: 1.7.2021
Kód tovaru: NS-1029877
Počet strán: 2
Približná hmotnosť: 6 g (0.01 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM

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Termoplasty

Anotácia textu normy ASTM D1786-21 :

This specification covers toluene diisocyanate used as an ingredient in the production of polyurethane cellular materials. The three classes of toluene diisocyanate covered in this specification are based on isomer ratio, and the three types are based on acidity and hydrolyzable chloride. Materials shall be tested and the individual grades shall conform to specified values of isomer ratio, purity, APHA color, and total chlorine.

Keywords:
polyurethane, raw materials, specification, TDI, toluene diisocyanate,, ICS Number Code 83.080.20 (Thermoplastic materials)

Doplňujúce informácie

1. Scope

1.1?This specification covers toluene diisocyanate used as an ingredient in the production of polyurethane materials.

Note 1:?The properties included in this specification are those required to characterize toluene diisocyanate. Other requirements are possible and will be added as the necessary test methods become available.

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 2:?There is no known ISO equivalent to this standard.

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.

2. Referenced Documents

D883-24	Standard Terminology Relating to Plastics
D4877-19	Standard Test Method for Polyurethane Raw Materials: Determination of APHA Color in Isocyanates
D4663-20	Standard Test Method for Polyurethane Raw Materials: Determination of Hydrolyzable Chlorine of Isocyanates
D4661-23	Standard Test Methods for Polyurethane Raw Materials: Determination of Total Chlorine in Isocyanates
D4660-23	Standard Test Methods for Polyurethane Raw Materials: Determination of the Isomer Content of Toluenediisocyanate
D5629-23	Standard Test Method for Polyurethane Raw Materials: Determination of Acidity in Low-Acidity Aromatic Isocyanates and Polyurethane Prepolymers
D5155-19	Standard Test Methods for Polyurethane Raw Materials: Determination of the Isocyanate Content of Aromatic Isocyanates
49	CFR Transportation Part 172.01 Code of Federal Regulation is available from U.S. Government Printing Office Superintendent of Documents, 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401.

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