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Tablets
• Fully portable, optional UKAS calibration, use on-site or laboratory based
• No preparation, no mess, no power or auxiliary equipment needed
• Multiple, unlimited use, typically a 5 year life span
• Annual recalibration to ISO 17025 available
• Simple to use and store
• Fully re-useable with re-sealing containers
• A full range of humidity values from 4% up to 97% humidity
• Calibration uncertainty typically +/- 1.7 % RH
• Health & safety (COSHH) material data sheets available with all calibration salts
• Suitable for all models of Novasina water activity meters
Relative humidity emitted at specified temperatures:
SAL-T (aw) | Composition | 15°C | 20°C | 25°C | 30°C | |
---|---|---|---|---|---|---|
SAL-T / 4 | CsF (>25%) | 4.3% | 3.8% | 3.4% | 3.0% | Buy now › |
SAL-T / 6 | LiBr | 6.9 % | 6.6% | 6.4% | 6.2% | Buy now › |
SAL-T / 11 | LiCl | 11.3% | 11.3% | 11.3% | 11.3% | Buy now › |
SAL-T / 33 | MgCl2-6H2O | 33.3% | 33.1% | 32.8% | 32.4% | Buy now › |
SAL-T / 53 | Mg(NO3)2-6H2O | 55.9% | 54.4% | 52.9% | 51.4% | Buy now › |
SAL-T / 58 | NaBr | 60.7% | 59.1% | 57.6% | 56.0% | Buy now › |
SAL-T / 75 | NaCl | 75.6% | 75.5% | 75.3% | 75.1% | Buy now › |
SAL-T / 84 | KCl | 85.9% | 85.1% | 84.3% | 83.6% | Buy now › |
SAL-T / 90 | Ba(Cl)2-2H2O | 90.9% | 90.5% | 90.1% | 89.9% | Buy now › |
SAL-T / 97 | K2SO4 (>20%) | 97.9% | 97.6% | 97.3% | 97.0% | Buy now › |
References: Greenspan, Humidity Fixed Points of Binary Saturated Aqueous Solutions. Journal of Research of the National Bureau of Standards Vol. 81A, No1 01/02 1977