Gel ink ball pens and refills - Documentary use (DOC) Ingestion-build-232773 BS EN 1097-4 is the

BS EN 1097-4 is the fourth part of the BS EN 1097 series that describes the reference method used for type testing and in cases of dispute

NOTE This International Standard does not provide an absolute measure of the amount of ammonia present

In all tables

h)     Correction of the references

Security Policy

Gel ink ball pens and refills - Documentary use (DOC) Ingestion-build-232773 BS EN 1097-4 is the1 Scope This part of ISO 27668 establishes minimum quality requirements for gel ink ball pens (refillable or non refillable) and refills for documentary use. Basic requirements for gel ink ball pens for general use are given in ISO 27668 1.