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ASTM E1090-08
Standard Test Method for Dicumyl Peroxide and Dicumyl Peroxide Decomposition Products in Resins (Withdrawn 2017)
7 стр.
Отменен
Электронный (pdf)Печатное издание
96.72 $ (включая НДС 20%)
Разработчик:
Зарубежные/ASTM
ICS:
83.080.10 Thermosetting. Including ebonite / Термореактивные материалы
Сборник (ASTM):
06.04 Paint—Solvents; Aromatic; Industrial, Specialty and Related Chemicals / Красители – Растворители; Ароматические углеводороды
Тематика:
Industrial Chemicals
Описание
Причина отменыFormerly under the jurisdiction of Committee D16 on Aromatic Hydrocarbons and Related Chemicals, this test method was withdrawn in January 2017 in accordance with section 10.6.3 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.Значение и использование

Knowledge of the peroxide content of uncured PE and EVA samples is required to regulate the degree of crosslinking in the cured product. As end use applications of the cured product can be affected by residual amounts of the peroxide or its decomposition productsdimethylbenzyl alcohol and acetophenoneknowledge of these levels is also important. This test method provides a procedure for determining the concentration of these compounds. A method for the HPLC assay of dicumyl peroxide is described in Test Method E 755.

Область применения

1.1 This test method covers and is applicable to the determination of dicumyl peroxide and the decomposition products dimethylbenzyl alcohol and acetophenone in cured and uncured polyethylene (PE) and ethylene vinyl acetate (EVA) resins. These uncured polymers normally contain from 1 to 2 % dicumyl peroxide, whereas the residual peroxide level in the cured polymers is usually less than 0.1 %.

1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.

1.3 Review the current Material Safety Data Sheets (MSDS) for detailed information concerning toxicity, first aid procedures, and safety precautions.

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 and health practices and determine the applicability of regulatory limitations prior to use. Specific hazards are given in Section 7.

Ключевые слова:
acetophenone; dicumyl peroxide; dimethylbenzyl alcohol; ethylene-vinyl acetate copolymers; high performance liquid chromatograph; HPLC; polyethylene; resins; Sampling plastics/plastic products; Sampling chemicals; Uncured polyethylene (PE) plastics; Acetophene; Cured polyethylene (PE); Decomposition; Dicumyl peroxide; Dimethylbenzene alcohol; Ethylene-vinyl acetate (EVA) copolymer; Liquid chromatography (LC); Peroxides; Polyethylene (PE); Polymers; Resins