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3. XRF Testing

1) Suppliers must carry out a XRF Test by the unit of homogeneous materials in parts.

* Homogeneous material means a unit that cannot be mechanically disjointed into single materials.

- Standards: Distinguish between organic/inorganic ( Unit: ppm, error tolerance 15% )

Type of

MaterialCd Pb Hg Cr Br Cl Sb Sn* S*

Organic

(Recycled

resin)

50200

(140)700 700

900

(630)900 700 900

Rubber:30,000

Package:10,000

Inorganic 70 700 700 700 - - 700 -

* Sn, S: Voluntary management by considering properties of the suppliersequipment/parts.

* Refer to Guide of XRF Test of partsin P-EHS for standards regarding separation and testing

of homogeneous material

2) Setting up test recipe for parts: Set up recipe through equipment maker

Maker Types of material Details

Hitachi

Metal - SUS, Cu, Zn alloy

Plastic

- Composite materials of organic + inorganic : H/W parts

- Plastic, paints, paper, wood, leather, glass, ceramic

- Light metals : Al / Mg alloy

Shimadzu

Inorganic - SUS, Al, Mg, Cu, Zn alloy, category of SOLDER

Organic- Composite materials of organic + inorganic : H/W parts

- Plastic, paints, paper, wood, leather, glass, ceramic

NAVI ver - When you cant classify organic and inorganic

Etc. - - Follow the equipment manufacturers guide

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4. Spot Test of surface treated parts

1) Spot-test of Hexavalent chromium- Target: Chromium plating parts, chromate treated parts, parts detected with over

700ppm during XRF test

- Preparation of reagent and test apparatus

Category Name Spec The amount of use

Reagent

1.5-Diphenyl Carbazide 98% 0.4g

Water Ultrapure water 23ml

Ortho-phosphoric acid 85% 17ml

ethanol 99.9% 20ml

Acetone 99.7% 20ml

Test apparatus Scale, Beaker, Spuit, Reagent spoon, Measuring flask, Hood

[ Pictures ]

- Method of manufacturing for test

Mix 0.4g Diphenylcarbazide, 20ml Acetone, and 20ml Ethanol.

Mix 17ml of 85% Phosphoric acid with 23ml of water.

Mix the result of and .

* You must use the manufactured reagent within 4~8hr because of discoloration.

- Detail GUIDE

If Hexavalent chromium is detected, then color will turn red within one

minute. If there is no change, judge as pass.

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For effective judgment, place the white paper under the reagent bottle.

Its impossible to judge after several minutes has passed from making the reagent

In case of large size sample, pour the reagent over the sample and collect the

reagent in a beaker. Then judge the color of the reagent.Rub a wide area more than 10 times using the cotton swab with the reagent.

- Judgment

Pass if there is no change in color, fail if the solution turns red.

2) Spot-test of Nickel (DMGO)

- Target: External components intended to come into direct and prolonged contact

with the skin

- Preparation of reagent and test apparatus

Category Name Spec The amount of use

Reagent

Dimethylglyoxime(DMGO) Powder 0.8g

Ammonia water 28% 35.7ml

Ethanol 99.9% 100ml

Water Ultrapure water 64.3ml

Test apparatus Scale, Beaker, Pipette, Reagent spoon, Measuring flask,

- Method of manufacturing for test

DMGO (Powder) 0.8g + Ethanol (liquid) = Total 100ml (In Measuring flask)

Ammonia water(28%) 35.7ml+ D.I Water = Total 100ml (In Measuring flask)

Mix and at a 1:1 ratio in a beaker using a pipette.

Rub the surface more than 10 times using the cotton swab with solution