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How well are you preserving your collection?

💎 Collection Preservation Assessment

This tool analyzes how environmental conditions impact your collection's longevity. Enter your temperature and humidity measurements, select the materials in your collection, and receive tailored preservation analysis using conservation science models.

Items & Conditions

Select materials in your collection to see tailored preservation analysis.

Preservation Analysis

📐 Technical Details & Background
Select collection types to see specific technical models and calculations.

How Preservation Analysis Works

Chemical decay in organic materials—paper, photographs, textiles, and films—is driven by both temperature and relative humidity. This tool uses conservation science models to calculate a lifetime multiplier for your specific storage conditions, showing how your environment affects your items' permanence relative to the reference standard (20°C, 50% RH).

Lifetime Multiple of 1.00 means equivalent lifetime to the reference standard. Higher than 1.00 means better than standard, and lower than 1.00 means worse.

The analysis provides predicted lifespan and alerts for mold risk (≥65% RH) or low-humidity brittleness (<25% RH). Rule of thumb: each 5°C cooler roughly doubles lifetime; halving RH can double it again.