Heathrow Scientific Water Activity Meter Calibration Salts 47011 & 47012

Maintain the absolute accuracy and audit-ready compliance of your analytical instruments with Heathrow Scientific Saturated Calibration Salts. Designed specifically for the routine calibration and verification of Water Activity Meters, these premium saturated salt standards guarantee that your aw measurements remain completely reliable over time. Regular calibration is a strict requirement under ISO 18787 and ASTM E104 testing standards, ensuring that sensor drift does not compromise your product safety data or lead to premature spoilage of released batches.

Each calibration salt is carefully formulated to produce a highly specific, thermodynamically stable water activity (aw) value at standard room temperatures. The series covers the entire critical testing spectrum, including Magnesium Chloride (0.328 aw), Magnesium Nitrate (0.529 aw), Sodium Chloride (0.753 aw), Potassium Chloride (0.843 aw), Ammonium Dihydrogen Phosphate (0.930 aw), and Potassium Sulfate (0.973 aw). Supplied in secure, leak-proof containment vessels, these reusable salts feature a breathable waterproof film that allows for rapid vapor equilibrium without exposing the sensor to liquid contamination.

Features and Benefits

• Salts are reusable

• Do not pierce waterproof breathable film

• Recommend to replace after one year

• To use: Open the lid and set it on the sensor to complete preparation. Please follow the testing standards based upon your sample product.

• ISO 18787:2017 - Food Products

• ASTM E104 - Pharmaceuticals and Cosmetics

Specifications

• Quantity: 1 Each

• Type: 0.328 aw, Magnesium Chloride

Ordering

Authorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.

Catalog Numbers (MPN)