2i Aerosol Photometer Data Logging

Connect the 2i unit to your PC USB port using a standard USB cable. One of the easiest programs for capturing data is probably Windows® terminal available in the Windows OS inclusive through version XP. See your Windows® documentation for version specific setup procedures. There are also many freeware and purchase options to choose from...

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ATI PAO-4 (4cSt polyalphaolefin) Food contact

Information regarding the use of PAO-4 in applications where there may be “food” contact. All PAO-4 sold by ATI has been registered by the manufacturer and accepted by the NSF Nonfood Compounds Registration Program (White Book) for category code H1. NSF registration numbers 049545 & 131844 “H1 – Lubricants with incidental food contact Preparations permitted...

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HEPA Vacuum, NPFU & PHEAF Testing

Standards or procedures are available for in-place leakage testing of HEPA vacuums, also known as Negative Pressure Filtration Units (NPFU) or Portable High Efficiency Air Filtration equipment (PHEAF). Several standards organizations are developing industry-wide test standards, though currently none are released. A few procedures are available that may be adapted to vacuum cleaner testing in...

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ASTM D2986-95A (1999) Standard

Standard Practice for Evaluation of Air Assay Media by the Monodisperse DOP (Dioctyl Phthalate) Smoke Test (Withdrawn 2004) WITHDRAWN, NO REPLACEMENT Developed by Subcommittee: D22.01 Withdrawal Rationale: The dioctyl phthalate (DOP) smoke test is a highly sensitive and reliable technique for measuring the fine particle arresting efficiency of an air or gas cleaning system or...

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2H & 2HN Quick Reference Guide

SETUP To enter setup, press <↑> then < ENTER > Press <↑> or <↓> then < ENTER > to select function, then <↑> or <↓> to change L0 Run L1 Audible Alarm (On/Off) L2 0 Sample Time (5 to 120 seconds) L3 100% Sample Time (5 to 120 seconds) L4 Decimal Places (3 or 4)...

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TDA-2G & TDA-2GN Quick Reference Guide

PARAMETER SETUP To enter setup mode press <ENTER> then the UP arrow L0 – Run L1 – Audible Alarm L2 – Display Rate L3 – 100% Sample Time L4 – Decimal Places L5 – Internal Reference L6 – Hour Meter L7 – Factory Defaults L8 – Software Revision L9 – Bar graph L10 – Display...

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Aerosol Correction Factors

Aerosol Generators The nozzle pressure values below are used when substitute aerosol reagents are chosen rather than DOP and the aerosol output concentration of a Type III-A Laskin nozzle generator must be calculated. Example: DOP-20 psi applied with dilution airflow of 135 cfm yields 100 mg/m3 PAO-23 psi applied with dilution airflow of 135 cfm...

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Thermal Generator Inert Gas Propellant (Models TDA-5A, 5B & 5C)

All ATI thermal condensation generators use approximately 20 standard cubic feet per hour of compressed inert gas during normal operation.  An inert gas is used since the heater block operating temperature is above the flashpoint of both DOP and PAO-4. Nitrogen, either Oil Pumped (OP) or Water Pumped (WP), is generally readily available in size...

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More Emery vs. DOP

It is ATI’s understanding that the US Army has sent letters to certifiers demanding a $20,000 license fee to use this liquid. Steve Halsey, a member of the International Air Filter Certifiers Association (IAFCA), has in contact with the US Army patent attorney in regards to this fee. For problems with the US Army or...

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Filter Leakage Testing Using Analog and Digital Photometers

This bulletin is intended to familiarize users of analog instruments with digital photometers by comparing the legacy TDA-2D or TDA-2E photometers with ATI’s first digital TDA-2G model. Setting 100% Upstream Level Analog Unit – To set the 100% baseline on an analog unit perform the following: Place the Range Selector switch in the 100% range....

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