ASTM D4590-22 + Redline

ASTM D4590-22 + Redline

Standard Test Method for Colorimetric Determination of p-tert-Butylcatechol In Styrene Monomer or AMS (a–Methylstyrene) by Spectrophotometry

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57,00 €

Détails

1.1 This test method is applicable to the determination of residual 4-tertiary-butylcatechol (TBC) in styrene monomer or AMS in the 1?mg/kg to 100?mg/kg range.

1.2 In determining the conformance of the test results using this method to applicable specifications, results shall be rounded off in accordance with the rounding-off method of Practice E29. The limit of detection is 0.2 mg/kg while the limit of quantitation is 0.8 mg/kg based on the ILS data in Table 1.

1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.4 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. For specific statements on hazards, see Section 9.

1.5 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.


Significance and Use:

5.1 This test method is suitable for determining the quantity of TBC inhibitor, both for the protection against polymerization while in transit and storage, and for internal quality control.

Informations supplémentaires

Auteur American Society for Testing and Materials (ASTM International)
Comité D16.07 - Committee D16 on Aromatic, Industrial, Specialty and Related Chemicals
Edité par ASTM
Type de document Norme
Thème ,Alcohols. Ethers,Colours and measurement of light
ICS 17.180.20 : Couleurs et mesurage de lumière
71.080.60 : Alcools. Éthers
Nombre de pages 4
Remplace ASTM D4590-18 + Redline
Recueil ASTM Volume 06.04 - Multi-User - Single-Site Online
Mot-clé D4590

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