BVAA’s Technical Hot Spot

Published: 17th November 2016 | Issue 39

INDUSTRIAL VALVES — MEASUREMENT, TEST AND QUALIFICATION PROCEDURES FOR FUGITIVE EMISSIONS — PART 1: CLASSIFICATION SYSTEM AND QUALIFICATION PROCEDURES FOR TYPE TESTING OF VALVES AMENDMENT 1 — DRAFT STANDARD ISSUED FOR PUBLIC COMMENT DRAFT BS EN ISO 15848-1:2015 AMD 1 DPC: 16 / 30341108 DC

What is it?:

This is a proposal to amend ISO 15848-1 following the receipt of question asking whether a valve tested at RT can be used over a temperature range of -29°C to 40°C What is the interpretation of tRT? If it is 20°C, then does testing at this this temperature reasonably qualify the valve for a service temperature range -29°C to 40°C?

Why is it important?:

The amendment proposes that the temperature range of -29°C to 40°C is split into two ranges, -29°C to RT and 5°C to 40°C. The proposed test temperature for -29°C to RT is -29°C and for 5°C to 40°C it is RT. The implications for this are that anyone who has previously done testing at RT may have to retest. The RT testing would no longer qualify the valve for -29°C to +5°C.

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