The PNR 12 measures the resistance a material provides against being pierced by a specifically shaped test body.
The USP (US Pharmacopeia) describes the consistency measurement by penetration method for microcrystalline wax, white petrolatum and carboxymethylcellulose sodium paste.
Download the full application report to see an example on how to measure white petrolatum.
Small-scale domestic solar could cause power failures
I do hope that AI will not mean we loose the experienced staff. AI is pattern matching, what happens if an unprecedented event happens? We will need...