Portwest - Do You Know Booklet

DO YOU KNOW 44

WHAT IS EN 1073-2:2002? PROTECTIVE CLOTHING AGAINST RADIOACTIVE CONTAMINATION THIS STANDARD SPECIFIES THE REQUIREMENTS AND TEST METHODS FOR NON VENTILATED PROTECTIVE CLOTHING AGAINST PARTICULATE RADIOACTIVE CONTAMINATION. THE STANDARD TESTS FOR INWARD LEAKAGE OF AEROSOLS & FINE PARTICLES AS TESTED IN EN ISO 13982 1. PROCESS:

Nominal Protection Factor & Performance Class for suit particle protection level:

A person wearing the protective suit enters a “testing chamber”. Beneath the protective suit, the person has three measuring probes attached (one on the chest, one at the waist and one at the knee). Sodium chloride particulates (average size of 0.6 microns) are distributed throughout the cabin, the wearer performs a series of three physical activities: » 3 minutes standing still » 3 minutes “on the spot”walking (5km/h) » 3minutes squatting (at a rateof 5 squats perminute) Sodium chloride particulates that penetrate the protective suit are counted by the probes beneath the suit. The results are used to determine both a performance classi cation and a “nominal protection factor”.

Protection Level

Class Nominal Protection Factor

Highest Protection

3

500

Medium Protection

2

50

Low Protection

1

5

A suit which o ers the highest protection to the ne particulates will have low inward leakage, and thus a high nominal protection factor.

PORTWEST HAVE 3 PRODUCTS ST50, ST60 & ST70 TESTED TO EN 1703-2:2002