Code

Description

Unit

NIST-984

Rubidium chloride - Assay/isotopic composition

0,25 g

NIST-983

Radiogenic Lead Isotopic Standard

1 g (wire)

NIST-982

Equal-Atom Lead Isotopic Standard

on request

NIST-981

Lead metal, natural - Isotopic composition

1 g (wire)

NIST-980

Magnesium - Isotopic composition

0,25 g

NIST-979

Chromium nitrate - Isotopic composition

0,25 g

NIST-978a

Silver nitrate - Assay/isotopic composition

0,25 g

NIST-977

Sodium bromide - Isotopic composition

0,25 g

NIST-975a

Sodium chloride - Isotopic composition

0,25 g

NIST-951a

Boric acid - Boron isotopes

2 g powder