MCL Technology Limited
sam-phantom.com
Broadband tissue-equivalent liquid: background
The dielectric properties of this liquid meet the requirements of IEC62209-1, EN62209:2006, and IEEE1528-2003 over the frequency range 300 MHz to 3 GHz and IEC62209-2 over the range 30 MHz to 6 GHz. Its physical and chemical properties are presented below.
Physical and chemical properties
| Appearance: | viscous liquid |
| Flash point: | 160ºC |
| Pour point: | -5ºC |
| Active content: | 100% mass |
| PH. 10% sol.: | 8.3 |
| Solubility in water: | dispersible |
| Colour: | red-brown |
| Viscosity: | 15.0 cSt |
| Density: | 0.94 kg/m3 |
Dielectric Properties at 20ºC (Representative batch)
The table and figures below show the relative permittivity and conductivity of the BBL at spot frequencies between 30 MHz and 6 GHz, compared to the target values specified in the following standards:
- IEC 62209-1:2005. Human exposure to radio frequency fields from hand-held and body-mounted wireless communication devices - human models, instrumentation, and procedures. Part 1: procedure to determine the specific absorption rate (SAR) for hand-held devices used in close proximity to the ear (frequency range 300 MHz to 3 GHz)
- IEC 62209-2. Human exposure to radio frequency fields from hand-held and body-mounted wireless communication devices - human models, instrumentation, and procedures. Part 2: procedure to determine the specific absorption rate (SAR) in the head and body for 30 MHz to 6 GHz handheld and body-mounted devices used in close proximity to the body.
- CENELEC EN 62209:2006. Human exposure to radio frequency fields from hand-held and body-mounted wireless communication devices - human models, instrumentation, and procedures. Part 1: procedure to determine the specific absorption rate (SAR) for hand-held devices used in close proximity to the ear (frequency range 300 MHz to 3 GHz)
- IEEE Std 1528T-2003. Recommended practice for determining the peak spatial-average specific absorption rate (SAR) in the human head from wireless communications devices: measurement techniques.
Note: IEC 62209-1, EN 62209:2006 and IEEE 1528:2003 cover the range 300 MHz to 3 GHz and allow 5% deviation from the target electrical properties; IEC 62209-2 extends to 6 GHz and allows 10% deviation.
Permittivity of BBL at 20ºC (blue symbols) and target values (red symbols)
Conductivity of BBL at 20ºC (blue symbols) and target values (red symbols)
The measured dielectric spectrum of BBL at 20ºC (blue symbols) and target values (red symbols)
| Frequency (MHz) |
Measured values at 20ºC | Target values [1-3 and 6] | %difference | |||
|---|---|---|---|---|---|---|
| Relative permittivity, εr |
Conductivity, σ (S/m) |
Relative permittivity, εr |
Conductivity, σ (S/m) |
Relative permittivity, εr |
Conductivity, σ (S/m) |
|
| 30* | 54.7 | 0.78 | 55.0 | 0.75 | 0.5 | -4.0 |
| 150** | 46.7 | 0.79 | 52.3 | 0.76 | 10.8 | -3.9 |
| 300** | 45.1 | 0.83 | 45.3 | 0.87 | 0.6 | 4.6 |
| 450 | 42.3 | 0.84 | 43.5 | 0.87 | 2.8 | 3.4 |
| 835 | 40.6 | 0.96 | 41.5 | 0.90 | 2.2 | -6.7 |
| 900 | 40.6 | 0.98 | 41.5 | 0.97 | 2.2 | -1.0 |
| 1450 | 40.2 | 1.19 | 40.5 | 1.20 | 0.7 | 0.8 |
| 1800 | 38.9 | 1.42 | 40.0 | 1.40 | 2.8 | -1.4 |
| 1900 | 38.8 | 1.46 | 40.0 | 1.40 | 3.0 | -4.3 |
| 1950 | 38.7 | 1.49 | 40.0 | 1.40 | 3.2 | -6.4 |
| 2000 | 38.7 | 1.52 | 40.0 | 1.40 | 3.2 | -8.6 |
| 2100 | 38.6 | 1.60 | 39.8 | 1.49 | 3.0 | -7.4 |
| 2450 | 37.9 | 1.83 | 39.2 | 1.80 | 3.3 | -1.7 |
| 3000 | 37.3 | 2.27 | 38.5 | 2.40 | 3.1 | 5.4 |
| 4000 | 35.8 | 3.18 | 37.4 | 3.43 | 4.3 | 7.3 |
| 5000 | 34.0 | 4.29 | 36.2 | 4.45 | 6.1 | 3.6 |
| 5200 | 33.7 | 4.51 | 36.0 | 4.65 | 6.4 | 3.0 |
| 5400 | 33.3 | 4.73 | 35.8 | 4.86 | 7.0 | 2.7 |
| 5600 | 32.9 | 4.97 | 35.5 | 5.06 | 7.3 | 1.8 |
| 5800 | 32.5 | 5.21 | 35.4 | 5.27 | 8.2 | 1.1 |
| 6000 | 32.2 | 5.44 | 35.1 | 5.48 | 8.3 | 0.7 |
Material safety data
| Material identity: | MCL-T broadband liquid |
| Chemical family: | Industrial oils |
| Classification: | No classification needed according to 67/548/EC and 1999/45/EC |
| Human health: | Inhalation of vapours and/or mists may irritate respiratory tract. Prolonged skin contact will cause defatting and possible irritation. Eye contact may cause irritation |
| Environment: | Slow rate of biodegradation. Risk for contamination of earth |
| Physical/chemical hazard: | At elevated temperatures, flammable vapours and decomposition products will be released. Spillage on floors will cause a slippery surface |
| Eyes: | Rinse the eye with water immediately. Continue to rinse for at least 15 min and get medical attention |
| Skin: | Immediately remove contaminated clothing. Wash skin thoroughly with soap and water. Get medical attention if irritation persists after washing |
| Ingestion: | Do not induce vomiting. Drink plenty of water. Get medical attention if any discomfort continues |
| Inhalation: | Provide rest, warmth and fresh air. Get medical attention if any discomfort continues |
| General: | Get medical attention if any discomfort continues |
| Extinguishing media: | Water spray, fog or mist, powder, foam or CO2 |
| Skin: | Immediately remove contaminated clothing. Wash skin thoroughly with soap and water. Get medical attention if irritation persists after washing |
| Ingestion: | Do not induce vomiting. Drink plenty of water. Get medical attention if any discomfort continues |
| Inhalation: | Provide rest, warmth and fresh air. Get medical attention if any discomfort continues |
| General: | Get medical attention if any discomfort continues |
| Usage precautions: | Keep containers closed when not in use. Avoid spilling, skin and eye contact. Wear Recommended personal protection equipment |
| Storage precautions: | Do not expose to extreme temperatures. Keep at 5-35ºC |
| Protective equipment: | Eye goggle, protective gloves |
| Process conditions: | Provide eye wash station |
| Ventilation: | Provide adequate general and local exhaust ventilation |
| Respirators: | Respiratory protection must be used if air concentration exceeds acceptable level |
| Protective gloves: | Chemical resistant gloves required for prolonged or repeated contact. Use protective gloves made of nitrile or butyl rubber |
| Eye protection: | Wear splash-proof eye goggles to prevent any possibility of eye contact |
| Hygienic work practices: | Do not smoke in work area. Wash at the end of each work shift and before eating, smoking and using toilet |
| Eyes: | Spray and vapour in the eyes may cause irritation and smarting |
| Skin: | Prolonged or repeated contact leads to drying of skin. May cause defatting of the skin, but is not an irritant |
| Ingestion: | May cause discomfort if swallowed. |
| Inhalation: | At normal ambient temperatures this product will be unlikely to present an inhalation hazard because of its low volatility. May be harmful by inhalation if exposure to vapour, mists or fumes resulting from thermal decomposition products occurs |
