Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: ISO DIS 16152:2020
• Năm ban hành / Publication date: 2020
• Tình trạng / Status: A - Còn hiệu lực
• Tên tiếng Anh / Title in English: Plastics — Determination of xylene-soluble matter in polypropylene
• Thay thế cho / Replace: ISO 16152:2005
• Chỉ số phân loại Quốc tế (ICS) / By field: 83.080.01 - Chất dẻo nói chung
• Số trang / Page: 14

Phạm vi áp dụng / Scope of standard

This international standard specifies a method of determining the mass fraction of a polypropylene homopolymer of copolymer which is soluble in xylene at 25°C.

Other materials with solubilities similar to that of the xylene-soluble fraction, such as additives, may interfere with the determination.

This international standard included two methods which are "reference method (method 1)"and "automated instrument method (method 2)", The "reference method" is used to calibrate the method used for the determination of the xylene-soluble matter in polypropylene.

The "automated instrument method" is a method which can be used for the determination if it is calibrated using the reference method described in clause 4 provided it shows a certain permissible repeatability.