Tungsten Standard for ICP

Analysis Note

1000 mg/L W in 5% nitric acid and 2% hydrofluoric acid,
prepared with high purity W metal, HNO₃ TraceSELECT^®, HF TraceSELECT^® and water TraceSELECT^®Ultra.

General description

This certified reference material (CRM) is produced and certified in accordance with ISO/IEC 17025 and ISO Guide 34. This CRM is traceable to SI unit kg and measured against NIST SRM.
Certified content incl. uncertainty and expiry date are given on label. Information about trace impurities are stated in the enclosed certificate (available as download: http://www.sigma-aldrich.com).

Other Notes

For a complete product listing of our TraceCERT range of CRMs for ICP and AAS, technical information and example certificates please visit our inorganic TraceCERT website

Legal Information

TraceCERT is a registered trademark of Sigma-Aldrich Co. LLC

TraceSELECT is a registered trademark of Sigma-Aldrich Co. LLC

Safety Information

Symbol 

  GHS05, GHS06

Signal word 

Danger

Hazard statements 

H290-H301 + H311-H314

Precautionary statements 

P280-P301 + P310 + P330-P303 + P361 + P353-P304 + P340 + P310-P305 + P351 + P338

Personal Protective Equipment 

Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter

Hazard Codes (Europe) 

T

Risk Statements (Europe) 

23/24/25-34

Safety Statements (Europe) 

26-36/37/39-45

RIDADR 

UN 3264 8 / PGII

WGK Germany 

2