STOCK AVAILABILITY (FOR AIR)
|
Inner Diameter |
Outer Diameter |
Standard Roll |
Part No. |
|
1/16 |
1/8 |
100 |
ESD TU 016/018 |
|
1/8 |
1/4 |
100 |
ESD TU 018/014 |
|
1/4 |
3/8 |
100 |
ESD TU 014/038 |
|
3/8 |
1/2 |
50 |
ESD TU 038/012 |
|
3/8 |
5/8 |
50 |
ESD TU 038/058 |
|
Inner |
Outer |
Standard Roll |
Part No. |
|
1.5 |
3.0 |
100 |
ESD 015/030 |
|
2.0 |
4.0 |
100 |
ESD 020/040 |
|
2.5 |
4.0 |
100 |
ESD 025/040 |
|
3.0 |
5.0 |
100 |
ESD 030/050 |
|
4.0 |
6.0 |
100 |
ESD 040/060 |
|
5.0 |
8..0 |
100 |
ESD 050/080 |
|
6.5 |
10.0 |
100 |
ESD 065/100 |
|
8.0 |
12.0 |
50 |
ESD 080/120 |
|
9.5 |
12.7 |
50 |
ESD 095/127 |
BENEFIT
Permanent Static Dissipative
Insensitive to environment
Special design for cleanroom application
APPLICATION
Disc Drive industries (MR & GMR Head)
Semi - Conductor industries
Areo - Space industries
SPECIFICATION
|
Surface Resistivity |
8 * 10 to power of 8 |
|
Decay time at centre of tube |
0.5 to 1.2 seconds |
|
Decay time at end of tube |
0.8 to 1.3 seconds |
|
Float voltage observed |
0V to 3V |
|
Peel Off Voltage Observed |
0V to 3 V |
|
The tubing are free from silicon |
|
PROCEDURE
OUTGASSING – Three samples of Spiral Coil were used and placed in an outgassing vessel at 85 Degree C. It was then flushed continually for three hours at 50ml/min with grade 5 nitrogen. A carbotrap ‘B’ / carbotrap ‘C’ tube were then used to trap the outgassing constituents after which analyzing using GC/MS with ATD.
FTIR / SILICONE OIL / HYDROCARBONS – The presence of silicone oil and hydrocarbons were extracted in solvent soluble residue from one piece of 15.5 “ of ESD Bluish Spiral Coil. Both the inner and outer surfaces, a total of 121cm square, were rinsed with 10ml of hexane and isopropanol by mixing a portion of 1 : 1 (v/v) of the solvent solution. A clean 30ml glass beaker was used to collect the rinsate. The solvent solution was evaporated to dryness. Thereafter, FTIR / HATR was used to analyze for the presence of silicone oil and hydrocarbons on any residue rinsed from the sample.
IONIC CONTAMINATION – A ESD Bluish Spiral Coil sample were divided into three sections to test for ionic contamination. Three pre-clean glass beaker containing 10ml of de-ionized water was given one section of the spiral coil sample each and then capped off to prevent evaporation. The glass beakers were then placed in an 80 Degree C oven. The water extract was then analyzed using ion chromatography. A hand measured apparent surface area of 10.2cm square was used to calculate the results.
RESULTS
OUTGASSING - Below are the data obtained from using the following chemical
|
COMPOUND INDENTIFICATION |
Section 1 Sample |
Section 2 Sample |
Section 3 Sample |
Average |
|
BHT |
10 ug/g |
13 ug/g |
11 ug/g |
11 ug/g |
|
KETONES |
26 ug/g |
23 ug/g |
24 ug/g |
24 ug/g |
|
SILOXANE |
1 ug/g |
0 ug/g |
0 ug/g |
1 ug/g |
|
HYDROCARBON, OTHERS |
15 ug/g |
12 ug/g |
17 ug/g |
15 ug/g |
|
TOTAL |
52 ug/g |
48 ug/g |
52 ug/g |
51 ug/g |
FTIR / SILICONE OIL / HYDROCARBONS
- Below shown was obtain from the analyzed result on one section of the Spiral Coil.
|
|
Section 1 Sample |
Limits |
|
SILICONE OIL |
10 |
As per customer's specification |
|
HYDROCARBONS |
160 |
As per customer's specification |
Note: Result for both the silicone oil and hydrocarbons are in nanograms/cm square surface area.
IONIC CONTAMINTAION - The result tested as follows
|
SAMPLE |
Section1 Sample (ug/cm square) |
Section 2 Sample |
Section 3 Sample |
Average |
Limits |
|
AMMONIUM |
0.014 |
0.014 |
0.019 |
0.016 |
As per customer's specification |
|
BROMIDE |
0.008 |
0.008 |
0.004 |
0.007 |
|
|
CALCIUM |
0.020 |
0.020 |
0.019 |
0.020 |
|
|
CHLORIDE |
0.007 |
0.010 |
0.014 |
0.010 |
|
|
FLUORIDE |
0.031 |
0.028 |
0.030 |
0.030 |
|
|
MAGNESIUM |
0.001 |
0.000 |
0.001 |
0.001 |
|
|
NITRATE |
0.003 |
0.002 |
0.004 |
0.003 |
|
|
NITRITE |
0.000 |
0.000 |
0.000 |
0.000 |
|
|
PHOSPHATE |
0.075 |
0.069 |
0.071 |
0.072 |
|
|
POTASSIUM |
0.011 |
0.012 |
0.011 |
0.011 |
|
|
SODIUM |
0.155 |
0.150 |
0.147 |
0.151 |
|
|
SULFATE |
0.000 |
0.003 |
0.000 |
0.001 |
|
|
TOTAL SUM OF ANIONS |
0.325 |
0.316 |
0.320 |
0.322 |
ROHS FOR SPIRAL COIL - On analysis, the following result were obtain:
|
Test Parameter |
Digestion / Extraction Method |
Analysis Method |
Result, ppm (w/w) |
|
Mercury (Hg) |
AC/RoHS/0010 Ver1.1/05 Wet Acid Digestion (Microwave) |
CVAAS |
ND |
|
Lead (Pb) |
AC/RoHS/0007 Ver1.0/05 Dry Ashing |
ICP-AES |
ND |
|
Cadmium (Cd) |
AC/RoHS/0007 Ver1.1/05 Wet Acid Digestion (Microwave) |
ICP-AES |
ND |
|
Hexavalent Chromium (Cr 6+) |
Ac/RoHS/0011 Ver1.0/05 EPA 3060A / 7196A (Modified) |
ND |
|
|
Polybrominated Biphenyls (PBB) |
AC/RoHS/0012 Ver1.1/05 (Microwave) |
GC-MS |
ND |
|
Plybrominated Diphenyl Ethers (PBDEs) |
AC/RoHS/0012 Ver1.1/05 (Microwave) |
GC-MS |
ND |
REMARKS
Sample was prepared as in AC/ROHS/0006 Ver1.0/05 and all the methods listed above are reference to the IEC 111/24/CD/Ed.1- Procedure for determination of levels of regulated Substances in Electrotechnical Products.
CVAAS = Cold Vapour Atomic Absorption Spectrometry
ICP – AES = Inductively- Coupled Plasma – Atomic Emission Spectrometry
GC-MS = Gas Chromatography – Mass Spectrometry
The Method detection limits(MDL) for Lead, Cadmium, Polybrominated Biphenyls and Polybrominated Diphenyl Ethers = 1 ppm each
The Method detection limits(MDL) for Hexavalent Chromium = 2ppm
The Method detection limits(MDL) for Mercury = 0.5ppm
“ND” = Not detected (Less than or equal to 5ppm)
