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Environmental Reference Materials

NIES CRMs

The National Institute for Environmental Studies (NIES) developed "Pepperbush" as Japan's first Certified Reference Material (CRM) in 1979. Since then, we have been developing environmental reference materials useful for environmental monitoring.

Environmental CRMs are utilized to evaluate new analytical methods and to control the accuracy of pretreatment and instrumental analyses.

Based on the opinions of researchers and the needs of society, the NIES produces CRMs and Reference Materials (RMs).

ISO Guide 30: 2015

・RM: material, sufficiently homogeneous and stable with respect to one or more specified properties, which has been established to be fit for its intended use in a measurement process

・CRM: reference material (RM) characterized by a metrologically valid procedure for one or more specified properties, accompanied by an RM certificate that provides the value of the specified property, its associated uncertainty, and a statement of metrological traceability

CRM No. Name
Certified Value
Unit Size
No.3 Chlorella
Elements
36 g/bottle
No.10-d Rice Flour-Unpolished
Elements
15 g/bottle
No.12 Marine Sediment (*1) 취급불가
Organo Sn
30 g/pack
No.13-a Human Hair
Methyl Hg
3 g/bottle
No.15 Scallop
Organo Sn
20 g/pack
No.18 Human Urine
Organo As
set of 2 bottles from 10 mL
No.23 Tea Leaves II
Elements
35 g/bottle
No.24 Fly Ash II
PCDDs, PCDFs
15 g/bottle
No.26 Water Bloom
Microcystins, Elements
54 mg/bottle
No.27 Typical Japanese Diet
Elements
18 g/bottle
No.29 Water Hyacinth
Elements
5 g/bottle
No.30 Gobi Kosa Dust
Elements
2 g/bottle
No.31 Lake Sediment
Elements
20 g/bottle
No.32 Bluegill
PFOS
5 g/bottle
No.33 Landfill Cover Soil
Elements
set of 2 bottles(30g)
No.34 Water Bloom (15N-MC)
15N-MC
10 mg/tube
No.35 Water Bloom (15N-CYN)
15N-CYN
10 mg/tube

(*1) NIES CRM No.12 Marine Sediment is not available overseas.

NIES RMs

RM No. Name
Reference Value
Unit Size
No.1001 Pine Needles I
Total Mercury
3 g/bottle
No.1002 Pine NeedlesⅡ
Total Mercury
3 g/bottle

 

 

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