• Hexboare [they/them]@hexbear.net
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      3 months ago

      They are pretty different:

      High-purity quartz products are categorized into four grades based on SiO2 purity: ultra-high purity (ω(SiO2) ≥ 99.998% or 4N8), high-purity (ω(SiO2) ≥ 99.995% or 4N5), medium-purity (ω(SiO2) ≥ 99.99% or 4N), and standard-purity (ω(SiO2) ≥ 99.9% or 3N).

      • booty [he/him]@hexbear.net
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        3 months ago

        High-purity quartz products are categorized into four grades … standard-purity

        you telling me that i can buy standard-purity high-purity quartz? thats fucked up