NIST640G

Line Position And Line Shape Standard for Powder Diffraction

(Silicon powder) NIST^® SRM^® 640G

• Sinónimos: Silicone powder
• Código UNSPSC: 41116107
• NACRES: NA.24

Propiedades

• formulario: powder
• envase: pkg of 7.5 g
• fabricante / nombre comercial: NIST^®
• técnicas: diffraction/scattering: suitable

Descripción

Descripción general

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

Aplicación

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

Características y beneficios

• 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.

Otras notas

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

Información legal

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

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

Información de seguridad

• Código de clase de almacenamiento: 13 - Non Combustible Solids
• Clase de riesgo para el agua (WGK): nwg
• Punto de inflamabilidad (°F): Not applicable
• Punto de inflamabilidad (°C): Not applicable