F&J Specialty Products, Inc articles

In the physical sciences, such as chemistry, the standard temperature and pressure (STP) is a set of conditions for experimental measurements that enables true comparisons between sets of da-ta representing gas volumes. There are many different definitions of standard temperatures and pressures applicable to gas volumes and volumetric flow rates. The differences depend on the organization defining the standard reference conditions.

Some of the numerous organizations defining standard r

Smart air sampling instruments can reduce, minimize and often eliminate the deficiencies of traditional analog air sampling instruments at a time when the industry needs maximum credibility on health and safety issues in preparation for the resurgence of commercial nuclear power plant construction on a worldwide basis.

The rapid evolution of microprocessor technology since the mid 1980s has revolutionized the world of computers to plateaus unimaginable at that time.

This same ev

The necessity of state-of-the-art air sampling and airflow calibration instruments for radiological emergency preparedness teams (REP), civil survey teams (CST) and radiological assistance program teams (RAP) is clearly established in today’s terrorism sensitive environment.

Instruments need to be lightweight, reasonably small, simple to operate and to display accurate measurement values that are comparable to other measured results of different survey teams and in compliance with ind

There has been considerable interest recently generated regarding emergency air sampling protocols as a result of the Fukushima accident in Japan.
A major concern involving air sampling requirements is the accurate determination of gaseous-radioactive iodine species emitted from the NPP to the environment as a result of an accident.

During normal NPP operation gaseous radioactive iodine measurements are collected on TEDA impregnated charcoal cartridges followed by gamma spectr

Introduction and History

Commercial uranium mining operations in the United States, beginning in the post World War II era, were primarily open pit mining. Open pit mining was the primary extraction method until in-situ recovery (ISR) began in the State of Wyoming in 1961. ISR is also known as in situ leaching (ISL), or solution mining. It is a mining process utilized to recover minerals, such as uranium, through boreholes drilled into an ore beari

The variable area rotameter has been the primary tool utilized for determination of flowrates passing through the air circuitry pathway of air sampling or air monitoring systems for many years.

In air sampling applications a pollutant is captured on a collection medium (filter paper, charcoal cartridge, etc.) and taken to a laboratory for determination of the quantity of pollutant on the collection medium.

In air monitoring applications a real time detection device is continuo

INTRODUCTION

The calibration of an air sampling instrument using a reference air flow calibrator requires attention to scientific detail in order to establish that the instrument’s reported values are correctly stated and valid under the actual operating conditions of the air sampling instrument.

DEFINITIONS

For the purposes of this paper, the following definitions shall apply:

Gas of Interest: Air

The key elements of the F&J quality assurance program for the manufacture of TEDA impregnated charcoal and silver zeolite cartridges utilized in the collection of airborne radioactive iodine species in power plant atmospheres include the following:

1. Testing is performed on every batch of adsorbent material

2. Testing is performed at different flow rates in order

A key element in radiation protection programs at commercial nuclear power plants, nuclear research facilities, fuel fabrication plants and regulatory agency oversight programs of licensees is management's ability to validate the accuracy of the many air sampling instruments utilized in the facility's radiation protection air monitoring programs.

The volume of air sampled in each sample event is responsible for the quantity of radioactive pollutants deposited on the

Valid inter-comparisons of operating performance parameters among all members of the nuclear industry are essential for the implementation of continuous improvement and for obtaining credibility among regulators and the general public. It is imperative that the comparison of performances among different industry facilities be as accurate as possible and normalized to industry-accepted reference standards.

Reference Standards

The concept of reference stan