Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: ASTM E2823-17
• Năm ban hành / Publication date: 2017
• Tình trạng / Status: A - Còn hiệu lực
• Tên tiếng Anh / Title in English: Standard Test Method for Analysis of Nickel Alloys by Inductively Coupled Plasma Mass Spectrometry (Performance-Based)
• Số trang / Page: 8
• Phạm vi áp dụng / Scope of standard: 1.1 This test method describes the inductively coupled plasma mass spectrometric analysis of nickel and nickel allys, as specified by Committee B02, and having chemical compositions within the following limits: Element Application Range (Mass Fraction %) Aluminum 0. 01-6.00 Boron 0. 01-0.10 Carbon 0. 01-0.15 Chromium 0. 01-33.00 Copper 0.01-35.00 Cobalt 0. 01-20.00 Iron 0.05-50.00 Magnesium 0. 01-0.020 Molybdenum 0. 01-30.0 Niobium 0. 01-6.0 Nickel 25.00-100.0 Phosphorous 0.001-0.025 Silicon 0.01-1.50 Sulfur 0.0001-0.01 Titanium 0.0001-6.0 Tungsten 0.01-5.0 Vanadium 0.0005-1.0 1.2 The following elements may be determined using this method. Element Quantification Range (μg/g) Antimony 0.5-50 Bismuth 0.1-11 Gallium 2.9-54 Lead 0.4-21 Silver 1-35 Tin 2.2-97 Thallium 0.5-3.0 1.3 This method has only been interlaboratory tested for the elements and ranges specified. It may be possible to extend this method to other elements or different composition ranges provided that method validation that includes evaluation of method sensitivity, precision, and bias as described in this document is performed. Additionally, the validation study must evaluate the acceptability of sample preparation methodology using reference materials and/or spike recoveries. The user is cautioned to carefully evaluate the validation data as to the intended purpose of the analytical results. Guide E2857 provides additional guidance on method validation. 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 safety hazard statements are given in Section 9.