Laboratory installations. Ventilation systems in laboratories1 Scope This document applies for the planning, design, installation and commissioning of ventilation systems in laboratories. It also applies for scientific classrooms in schools when equipped with a ventilation system. The application of this document depends not on the term laboratory in its narrower sense but this document also applies also for laboratory related rooms in which work with dangerous or health hazardous substances is performed.

Only samples of the same format type (several of which can be defined in the same part of ISO/IEC 19794) are intended to be interchangeable

Psychological factors are not practicable to consider in this guide

Detailed information and specifications were needed

for knowing train status

total manganese

Educators and trainers

BS ISO 8139 specifies the mounting dimensions required for interchangeability of rod-end spherical eyes of pneumatic cylinders

— interoperability

Operators and authorities

Non-electrical automatic control and delay device manufactures

Preliminary investigations

but some common steps exist