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Doplňujúce informácie

ASTM D6367-21

Standard Specification for AMS (?-Methylstyrene)

NORMA vydaná dňa 1.11.2021

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Informácie o norme:

Označenie normy: ASTM D6367-21
Dátum vydania normy: 1.11.2021
Kód tovaru: NS-1043797
Počet strán: 2
Približná hmotnosť: 6 g (0.01 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM

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Anotácia textu normy ASTM D6367-21 :

This specification establishes the requirements for AMS (alpha-Methylstyrene). Sampled specimens shall conform to the following physical and chemical properties: minimum AMS content; maximum phenol content; maximum polymer content; inhibitor content; appearance; and color (Pt-Co units).

Keywords:
?-Methylstyrene, AMS, catechol, TBC, tertiary-butyl catechol,, ICS Number Code 75.080 (Petroleum products in general)

Doplňujúce informácie

1. Scope

1.1?This specification covers AMS (?-Methylstyrene).

1.2?The following applies to all limits in this specification: for purposes of determining conformance with this specification, an observed value or a calculated value shall be rounded off to the nearest unit in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E29.

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?Consult current OSHA regulations, suppliers Safety Data Sheets, and local regulations for all materials used in this specification.

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.

2. Referenced Documents

D4590-22	Standard Test Method for Colorimetric Determination of p-tert-Butylcatechol In Styrene Monomer or AMS (?–Methylstyrene) by Spectrophotometry
D3437-15(2022)	Standard Practice for Sampling and Handling Liquid Cyclic Products
D8005-23	Standard Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)
D5386-16	Standard Test Method for Color of Liquids Using Tristimulus Colorimetry
D3160-20a	Standard Test Method for Phenol Content of Cumene (Isopropylbenzene) or AMS (alfa-Methylstyrene) (Includes all amendments and changes 10/12/2020).
E29-22	Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
D7977-23	Standard Test Methods for Polymer Content of AMS (?-Methylstyrene)
D6144-22	Standard Test Method for Analysis of AMS (?-Methylstyrene) by Capillary Gas Chromatography

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