Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: ASTM D4312-15
• Năm ban hành / Publication date: 2015
• Tình trạng / Status: W - Hết hiệu lực
• Tên tiếng Anh / Title in English: Standard Test Method for Toluene-Insoluble (TI) Content of Tar and Pitch (Short Method)
• Chỉ số phân loại Quốc tế (ICS) / By field: 91.100.50 - Chất kết dính. Vật liệu làm kín
• Số trang / Page: 3

Phạm vi áp dụng / Scope of standard

4.1 This test method is useful for evaluating and characterizing tars and pitches and is one element in establishing the uniformity of shipment or sources of supply.

1.1 This test method covers the determination of toluene-insoluble matter (TI) in tar and pitch.

1.2 Since this test method is empirical, strict adherence to all details of the procedure is necessary.

1.3 The values stated in SI units are to be regarded as standard.

1.3.1 Exception-Other non-SI units are provided for information only.

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 hazard statements are given in Section 7.