NIST640G

Line Position And Line Shape Standard for Powder Diffraction

(Silicon powder) NIST^® SRM^® 640G

• 同義詞: Silicone powder
• 分類程式碼代碼: 41116107
• NACRES: NA.24

屬性

• 形狀: powder
• 包裝: pkg of 7.5 g
• 製造商／商標名: NIST^®
• 技術: diffraction/scattering: suitable

描述

一般說明

The Standard Reference Material (SRM) was prepared from ultra-high purity, intrinsic silicon boules that were crushed and jet milled to a median particle size of 4.1μm. The resulting powder was then annealed under gettered argon at 1000 °C for two hours and bottled under argon.

SRM 640F_Cert

SRM 640F_SDS

應用

This SRM is intended for use as a standard for calibration of diffraction line positions and line shapes, determined through powder diffractometry.

特點和優勢

• A unit of SRM 640f consists of approximately 7.5 g of silicon powder bottled under argon.
  
• Analysis of X-ray powder diffraction data indicated that the SRM material is homogeneous with respect to diffraction properties.
  
• SRM 640f was bottled under argon to protect against humidity.
  
• The certification data was analyzed using the FPA method with Pawley refinements as implemented in TOPAS.
  
• Expiration details and storage instructions are available in the NIST certificate.

其他說明

Please download a current certificate at nist.gov/SRM for current analytes and certified values.

法律資訊

NIST is a registered trademark of National Institute of Standards and Technology

SRM is a registered trademark of National Institute of Standards and Technology

安全資訊

• 儲存類別代碼: 11 - Combustible Solids
• 水污染物質分類（WGK）: nwg
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable