T H E N A T I O N A L B O A R D

B O I L E R &. P R E S S U R E V E S S E L I N S P E C T O R S

This is to certify that

Henry Technologies Ltd

Acceptable Abbrev.: HENRY 76 Mossland Road

Hillington Park, Glasgow, Scotland, G52 4XZ United Kingdom

is authorized to use the "NB" mark in accordance with the provisions of NB-501, National Board Certification of Pressure Relief Devices. The scope of Authorization is Umited to National Board Certified devices which have been manufactured, assembled and marked in accordance with the following construction codes:

O F

Certificate of Authorization

ASME Section VIII, Division 1: " U V Stamp

Issue Date: Novembers, 2018

Expiration Date: November 2, z021

Executive Director ' *^ H N L