Stain Analysis of Various Substances:
Blood
Glows dull brown under a UV light
Turns pink in water
Crackles with black edges under a flame
Positive (deep blue) ferric indicator
Ink
No glow in UV light
Smudges in water
Burns with acrid smell in flame
Negative ferric indicator
Rust
No glow in UV light
stays dry/rough in water
Sparks orange in flame
Positive (rust-orange) ferric indicator
Oil
Slight iridescence in UV light
spreads outward in water
Sizzles under a flame
Negative ferric indicator
Wine
Faint purple glow under UV light
Fades to pale pink in water
Dark flame with a sweet odor
Negative ferric indicator
Ink Permeation Rates Across Parchment:
Recycled Parchment
India ink
8.3 second absorption rate
0-15 second smudge rate
Standard Pulp
Ballpoint ink
2.1 second absorption rate
0-3 second smudge rate
Linen Blend
Fountain pen
5.9 second absorption rate
0-8 second smudge rate
Coated Paper
Gel ink
12.7 second absorption rate
0-20 second smudge rate