Page:NIOSH Manual of Analytical Methods - 7303.pdf/6

 ELEMENTS by ICP (Hot Block/HCl/HNO3 Ashing): METHOD 7303, Issue 1, dated 15 March 2003 - Page 6 of 6 TABLE 3: VALIDATION SUMMARY Status1

Analyte

Analyte

Status

Analyte

Status

Ag

Not Valid

CuO

Valid

S

Not Valid

Al

Valid

Fe

Valid

Sb

Partially Valid4

Not Valid

Fe2O3

Valid

Sb2O3

Partially Valid5

As

Valid

Ga

Valid

Se

Valid

Au

Valid

In

Valid

Si

Not Valid

B

Valid

KCI

Pending

Sn

Partially Valid6

Ba

Pending

Mg

Valid

SnO

Pending

BaO

Pending

MgO

Valid

SnO2

Pending

BaO2

Pending

Mn

Valid

Sr

Valid

BaCl2

Valid

MnO

Valid

SrCrO4

Valid (by Cr)

BaSO4

Pending

Mo

Valid

Te

Valid

Be

Valid

NaCl

Pending

Ti

Valid

Bi

Partially Valid2

Nd

Valid

Tl

Valid

Ca

Valid

Ni

Valid

V

Valid

CaCO3

Valid

P

Valid

V2O5

Valid

Al2O3

3

CaO

Valid

Pb

Partially Valid

Y

Valid

Cd

Valid

PbCrO4

Valid (by Cr)

Zn

Valid

Co

Valid

PbO

Valid

ZnO

Valid

Cr

Valid

Pd

Valid

Zr

Not Valid

Cu

Valid

Pt

Valid

ZrO

Not Valid

1

Status definitions

2 3

4 5 6

Valid:

The method is suitable for samples up to at least 0.0500 g bulk material with recoveries of between 90 and 110 percent. This weight exceeds most expected levels encountered in work environments.

Partially Valid:

The m eth od is suita ble with bulk-material recoveries of between 90 and 110 percent under certain conditions (as footnoted abo ve).

Not Valid:

The method procedure is not suitable for samples at any weight with recoveries of between 90 and 110 percent. An alternative method should be used.

Valid up to 10,000 :g/sample and within 7 days of sample digestion. Va lid up to 50,000 :g/sample and at least 2 4 ho urs after s am ple digestion ; Valid up to 15,000 :g/s am ple within 24 hours of sample digestion. Valid up to 25,000 :g/sample and within 7 days of sample digestion. Valid up to 25,000 :g/sample and within 7 days of sample digestion. Valid up to 30,000 :g/sample and within 7 days of sample digestion.

NOTE:

The upper limits of the method can be extended by serial dilution of the samples at the time of analyses.

NIOSH Manual of Analytical Methods (NMAM), Fourth Edition