Tiêu chuẩn quốc tế
|
Số hiệu
Standard Number
ASTM D3663-03(2015)
Năm ban hành 2015
Publication date
Tình trạng
W - Hết hiệu lực
Status |
|
Tên tiếng Anh
Title in English Standard Test Method for Surface Area of Catalysts and Catalyst Carriers
|
|
Chỉ số phân loại Quốc tế (ICS)
By field
71.040.30 - Thuốc thử hóa học và vật liệu chuẩn
|
|
Số trang
Page 5
Giá:
Price Liên hệ / Contact us
|
|
Phạm vi áp dụng
Scope of standard 1.1 This test method covers the determination of surface areas of catalyst and catalyst carriers that have Type II or IV nitrogen adsorption isotherms, and at least 1 m2/g of area. A volumetric measuring system is used to obtain at least four data points which fit on the linear BET2 equation line. 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.3 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. |