Code

Description

Unit

NW-RAIN-12

Rain Water - Trace elements (lot 0316)

500 mL

NRC-SLRS-6

River Water - Certified Reference Material for Trace Metals

200 mL

NIST-1643f

Fresh water - Trace elements

250 mL

LM24-CP-1643.L1

Trace metals in Water - 30 components (Standard equivalent to NIST1643)

100 mL

NW-SUPER-05

Lake water - Major ions and nutrients (lot 0815)

500 mL

NW-SANGAMON-03

River water - Major ions and nutrients (lot 0916)

500 mL

NW-LON-07

Natural lake water - Major ions and nutrients (lot 1115)

500 mL

NIST-1641e

Natural water - Mercury

10 x 10 mL

LGC6019

River water - Trace elements

250 mL

LGC6016

Estuarine water - Trace metals

50 mL