Water Activity Meter Standards Accurate water activity measurement starts with reliable calibration. These single-use water activity standards deliver traceable, precise reference points across the full measurement range, ensuring your instrument performs when it matters most. Each standard is supplied in a convenient pack of 50 capsules and includes a traceable certificate of analysis, ready for immediate use with no preparation required. Salt solutions are formulated with lithium chloride (LiCl), sodium chloride (NaCl), or potassium chloride (KCl) depending on the target activity level, while the 1.000 aw standard uses deionized water. Available individually at seven certified activity levels or as a mixed kit covering the full range, these standards are suitable for routine instrument verification, calibration checks, and method validation across food, pharmaceutical, and laboratory applications. Features Seven certified activity levels from 0.250 to 1.000 aw Formulated with LiCl, NaCl, KCl, or H2O salt solutions matched to target range Single-use capsule design eliminates cross-contamination risk Supplied with a traceable certificate of analysis Assorted kit option for full-range coverage in a single pack Specifications Model Description Salt Solution aw Level WAS-250 WA Standard LiCl 0.250 aw WAS-350 WA Standard LiCl 0.350 aw WAS-500 WA Standard LiCl 0.500 aw WAS-760 WA Standard NaCl 0.760 aw WAS-920 WA Standard NaCl 0.920 aw WAS-984 WA Standard KCl 0.984 aw WAS-1000 WA Standard H2O 1.000 aw WAS-KIT WA Standards Kit Assorted Assorted
