Поиск

Gel ink ball pens and refills. General use.

Gel ink ball pens and refills — Part 1: General use

Overview - ISO 27668-1:2017 (Gel ink ball pens and refills - Part 1: General use) ISO 27668-1:2017 sets minimum quality requirements for gel ink ball pens (both refillable and non‑refillable) and ref…