This process can be very unpredictable: some nitrate film from the 1890s is still in good condition today, while some much later nitrate had to be scrapped as unsalvageable when it was barely 20 years old.
Proses ini sangat tidak dapat diprediksi: beberapa film nitrat 1890 masih cukup bagus kondisinya sampai sekarang, sementara beberapa film nitrat setelah tahun itu telah dibuang ketika berusia dua puluh tahun.