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Highpurity PDV Vacuum Salt Standards and Industrial Applications Explained

2026-11-03

Pure Dried Vacuum salt, known as PDV salt, is a high-purity refined salt produced through vacuum evaporation. A 25-kilogram pack from Davidsons Farm & Country is notable for meeting BS998:1990, the British standard for vacuum salt used in food, and for its range of food-processing, industrial and water-treatment applications.

Product specifications and quality assurance

PDV salt is produced by vacuum evaporation, a process that yields a chemically pure, free-flowing product with fine crystals. Its core technical indicators conform to BS998:1990 – Vacuum Salt for Food Use, a standard that sets purity requirements for salt used in food applications.

The designation matters for manufacturers handling sensitive processes. Compliance with the standard indicates that the salt meets defined requirements for purity, impurity content and processing, supporting consistency and safety in food production and related high-standard industrial uses.

Parameter	Technical description
Product name	PDV Salt (Pure Dried Vacuum)
Packaging	25-kilogram bag
Standard	BS998:1990
Physical properties	High purity, free-flowing, fine particles

Applications across food and industry

The salt’s flowability and purity make it suitable for a broad range of uses. In the food sector, it is commonly used in meat curing and other food-processing operations, where consistent quality is essential.

In industrial settings, its high purity makes it an option for chemical synthesis and water softening. It is also used in ornamental water-feature maintenance, de-icing and cosmetic manufacturing.

Standard and practical considerations

BS998:1990 is a specific technical specification for food-grade vacuum salt. Products made to the standard are intended to satisfy food-safety requirements for purity, impurity levels and processing, while also being suitable for demanding industrial applications.

For water-softening systems, the salt’s high purity can help reduce equipment scaling. Operators are advised to confirm the required dosage and particle size in the equipment manual to support optimal ion-exchange efficiency.

Frequently asked questions

What does BS998:1990 mean for PDV salt?

It is a specific technical standard for food-grade vacuum salt. Meeting it indicates that the product satisfies requirements for purity, impurity content and processing, making it suitable for food production and related high-standard industrial uses.

Is PDV salt limited to food processing?

No. Although it meets food-grade requirements, its high purity and free-flowing properties also make it suitable for industrial chemical synthesis, water softening, de-icing and cosmetic manufacturing.

What should be considered when using PDV salt for water treatment?

In water-softening applications, the salt’s high purity can help reduce equipment scaling. The dosage and particle-size requirements should be checked against the specific softener’s operating instructions to ensure effective ion exchange.

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