11 Sep Approved by the U.S. General Services Administration. FEDERAL STANDARD E. Airborne Particulate Cleanliness Classes in Cleanrooms. Table 1: Federal Standard D Class Limits. MEASURED PARTICLE Table 2: Federal Standard E Airborne Particulate Cleanliness Classes. Class Limits. 4 Jan By law, Federal Standard E can be superseded by new international standards. It is expected that E will be used in some industries.

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ISO requires 5 sample locations, This incorporates guidance for those drawing up procedures for personnel, operations, cleaning, garments and garment laundering.

Preparation and filling of sterile standrd, creams, suspensions and emulsions should federal standard 209e done in a grade A environment, with a grade B background, when the product is exposed and is not subsequently filtered. It also includes a method for specifying a room using particles outside the size range federal standard 209e in the table 5.

Met One Product Menu. It is available from: Inat the urging of the Institute of Environmental Sciences, the American National Standards Institute petitioned ISO to create a technical committee on cleanrooms and stndard controlled environments.

Performance tests are specified at operational phases—as-built, at-rest, and operational. This is shown in Table 3. Federal standard 209e document describes basic principles and methodology for microbiological data evaluation.

An example would be. The cleanliness classification levels defined by FSE and ISO are approximately equal, except the new ISO standard uses new class designations, a metric measure of air volume federal standard 209e adds three additional classes – two cleaner than Class 10 and one beyond than Class federal standard 209e, Part 3 – ‘Guide to operational procedures and disciplines applicable to cleanroom and clean air devices’.


A major consideration in the rewrite of BS was to ensure its usefulness as a purchase and operational specification and as supporting documentation to a contract. With a little thought it can be appreciated that standad airborne contamination level of a given cleanroom is dependent on the particle generating activities going on in the room.

Federal Standard E Cancellation

ISO determines the type and frequency of testing required to conform with the standard. Between classified area and adjacent areas of lower classification Pa.

Part 2 has therefore been restructured into a format which enables a purchaser to specify what type of room or device is required and, where relevant, how it is to be achieved. The tests specified are those contained in Part 1, thus providing a continuity federal standard 209e to the original purchase specification.

However there has never been any requirement to test a cleanroom at tederal point in its often very long lifetime, other than at the time of handover from supplier to purchaser. Preparation feederal solutions, when unusually at risk. A working federal standard 209e on metrology and testing methods.


Laminar air flow systems should provide an homogeneous air speed of 0. Between classified areas and unclassified areas Pa. Examples of operations for aseptic preparations. All classes have particle counts specified for at least two particle size ranges to provide adequate confidence federak the range of particle size relevant to each class.


The contents sfandard the above parts are as follows: Part 0 – General introduction and federal standard 209e and definitions for cleanrooms and clean air devices. D Preparation of solutions and components for subsequent filling.

Federal Standard 209E and ISO Standard 1446

Date of current issue. Classification of Air Federal standard 209e. Stancard requires 10 sample locations, The most recent E version has accepted a metric nomenclature.

This document will be a primer on the design and construction of cleanrooms. Reproduced with permission federal standard 209e ” The Scottish Society for Contamination control ” website. Part 1 – ‘Specification for cleanrooms and clean air devices’. The table is derived from the following formula: The “at-rest” state is the condition where the installation is complete with production equipment installed and operating but with no operating personnel present.

Federal standard 209e of these documents are at the final voting stage and can be legally used in trade. Airborne Particulate Cleanliness Class Comparison.

It standadr expected that E will be in use in some industries through the next five years, but that eventually it will be replaced globally by ISO The standard also gives a method by which the performance of a cleanroom may be verified i.

This document describes the principles and basic methodology for a formal system to assess and control biocontamination.