Features & BenefitsHighly asymmetric PES membrane• Longer service life • Lower operating costs

High spoilage organism retention• Reliable microbiological control• Performance matched to industry standards

Advanced Pleat Technology (APT)• Increased accessible surface area • Longer service life• Lower operating costs

Novel upstream/downstream supports• Increased flow per cartridge• Reduced housing costs

Broad chemical compatibility• Stable with most cleaning and sanitation regimes

Meets requirements for food contact• Complies with requirements of the Pure Food, Drug

and Cosmetic Act for food contact

LifeASSURE™

Filter cartridges for Beverage Microbiological Stability

BNA Series

Controlling the spoilage microorganism population prior to packing is critical for many beverage processors. Eliminating these microorganisms,while keeping other beverage properties unchanged, is of vital importance. Of equal importance, is attaining long on-stream filter serv-ice life and driving down operating costs associated with filtration. 3M Purification has solved this demanding problem with the creation of the LifeASSURE™ BNA series of filter cartridges.LifeASSURE™ BNA filters encompass new, leading-edge technologiesthat not only provide the highest degree of microorganism control, but doso in an extremely durable and long lasting design.

LifeASSURE™ BNA filters cartridges employ a highly-asymmetric polyethersulfone (PES) membrane that delivers excellent spoilagemicroorganism retention while greatly minimizing any organoleptic interference. This highly durable membrane/cartridge design withstandsrepeated exposure to hot water sanitation and steam sterilization as wellas common chemical cleaning and sanitizing agents.

Complementing this high-performance membrane are 3M Purification’spatented* Advanced Pleat Technology (APT) design and an upstream anddownstream support design. All three work in concert to provide anincreased flow rate at a lower pressure drop, resulting in smaller filterassemblies with extended service life and a lower overall operationalcosts.

ADVANCED TECHNOLOGIESHighly Asymmetric PES MembraneLifeASSURE™ BNA filters incorporate a novel PES membrane with a highdegree of asymmetry (Figure 1). When viewed in cross-section, the membrane contains larger pores on the upstream surface that graduallytaper to smaller pores towards the downstream surface. Compared to conventional membranes with a symmetric pore structure, this structureprovides greater contaminant capacity, since it presents greater openspaces (void volume) in which to retain these contaminants. This increasein capacity leads directly to longer service life. In addition, the asymmetric structure provides less resistance to flow, resulting in a lowerpressure drop when compared at a constant flow rate to competitive filters, allowing a user to employ fewer LifeASSURE™ BNA filters for anygiven flow rate.

3M Purification

Advanced Pleat Technology (APT)LifeASSURE™ BNA filters feature Advanced Pleat Technology(APT) design for extended service life. This design technologymaximizes the useful surface area of the filter while maintainingopen flow paths between the media pleats (refer to Figure 2). Byemploying the APT design the LifeASSURE BNA filter provideslower pressure drops, longer service life and lower overall operational costs than competitive filter cartridges.

Novel Upstream/Downstream Support DesignLifeASSURE™ BNA filters employ a design that results in higher beverage flow versus pressure drop compared to competitive filters. This unique 3M Purification developmentcombines the high flowing PES membrane with special supportlayers upstream and downstream of the membrane. When combined with the previously mentioned Advanced PleatTechnology this feature greatly increases flow per cartridge andresults in lower overall operational costs than competitive filter cartridges.

ADVANCED PERFORMANCEExtended Service LifeIn the majority of beverage applications the final membrane filter is used in a continuous (as opposed to a batch) operation.Its service life is measured either by the volume filtered or thenumber of days in service before becoming permanentlyblocked. Filter cartridges that provide longer service life not onlyreduce direct operational costs, but also reduce indirect filtercartridge costs as well (filter change-out / installation labour,downtime between change-outs, filter flushing etc.). TheLifeASSURE™ BNA filter’s unique combination of highly asymmetric PES membrane, Advanced Pleat Technology designand novel upstream / downstream supports all work together tomaximize the volume of beverage that can be processed.

Chart 1 depicts the service life performance of theLifeASSURE™ BNA filter compared to various competitive filters. A surrogate solution was employed to mimic beverageplugging characteristics at an increased rate.

As the chart demonstrates, the LifeASSURE™ BNA filter cartridge’s unique design provided more than twice the throughput of the nearest competitor, greatly reducing overallfiltration costs.

Figure 2. Advanced Pleat Technology

PES Media

Upstream SupportLayer

Flow DistributionLayer

Downstream SupportLayer

Figure 3. LifeASSURE™ BNA Support Design

FLOW

Figure 1. LifeASSURE BNA SEM

MicroorganismLifeASSURE BNA

Reliable Microbiological ControlThe primary purpose of a membrane filter cartridge in beverage processing is to effectively control spoilagemicroorganisms. LifeASSURE™ BNA 0.45 micron and 0.65micron rated filter cartridges provide superior retention ofcommon spoilage microorganisms, even at challenge concentrations that far exceed those experienced by mostbeverage producers (typically 1,000,000 to 10,000,000 cellsper cm2 of membrane area).

Typical Log Reduction Value (LRV)

BNA045 Serratia marcescens 8

BNA045 Oenococcus oeni 9

BNA045 Lactobacillus brevis 10

BNA045 Dekkera intermedia 9

BNA065 Lactobacillus brevis 7

BNA065 Dekkera intermedia 9

Rel

ative

Ser

vice

Life

(%)

0102030405060708090

100

3M PurificationLifeASSURE

BNA

CompetitivePES 1

CompetitivePES 2

CompetitivePVDF

Chart 1. Comparative Service LifeLog Reduction Values are calculated using the following formula:

total number of organisms entering the filter

total number of organisms exiting the filter LRV = log10 ( )

Fast Flow Rates at Low Pressure Drops3M Purification has combined three key technological advancesto provide the fastest flow rate per unit of pressure drop. Thesethree technologies: a highly asymmetric microporous membrane, Advanced Pleat Technology (APT) and an upstreamand downstream support design, afford users with fasterprocess flow rates using fewer filters.

Consider the following example:Initial clean pressure drop (water) for a 30” filter cartridge

flowing at 76 lpm

3M LifeASSURE BNA 52 mbarBNA045

Pall Oenopure “GB” * 121 mbar

Millipore Vitipor® II * 207 mbar

Sartorius PS * 248 mbar

* Data are from published product literature

As the example above illustrates, LifeASSURE™ BNA filtershave a considerably lower pressure drop at a given flow ratewhen compared to competitive filter cartridges. Since filterchange-out is usually tied to a terminal differential pressuredrop (typically between 20 and 35 psid), employing filter cartridges that exhibit a lower initial pressure drop can result inlonger filter service life.

Alternatively, when determining the number of filter cartridgesneeded in a new system to provide a desired flow rate at agiven pressure drop, faster flowing filters will result in smaller,more economical systems.

Consider the following example:Number of 10” filters† needed to provide a 20 GPM flow with a

clean pressure drop of 1 psid (76 lpm flow at 69 mbar)

3M Purification LifeASSURE BNA BNA045 2

Pall Oenopure “GB” 5

Millipore Vitipore® II 24

Sartorius PS 5†rounded to nearest 10” filter length.

As the example illustrates, the nearest competitor requiresmore than twice as many filter elements to provide the sameflow rate and pressure drop.

00

0

105 15 20 25

20406080

100120

30

50 7525 100

0.5

1.0

1.5

2.0

BNA045

BNA065

Flow (gpm)

Flow (lpm)

Diff

eren

tial P

ress

ure

(psi

d)

Diff

eren

tial P

ress

ure

(mba

r)10” Filter Cartridge Flow Rates

*100 mbar = 10 kPa

Durable DesignThe LifeASSURE™ BNA filter membrane and cartridge designinnovations result in a highly durable filter cartridge, capable ofsecure operation through numerous cycles of hot water sanitation, steam sterilization, chemical based cleaning andsanitation.

LifeASSURE™ BNA Cartridge ConstructionLifeASSURE™ BNA filter cartridges are constructed of single-layer, highly asymmetric, polyethersulfone (PES) microporous membrane pleated with polypropylene upstreamand downstream support materials. The outer cage, inner coreand reinforced end-cap adapters are made of polypropylene.Multiple length filter cartridges, with industry standard connection styles, are produced to fit the most widely usedhousing designs and system sizes. No resin or binder compounds are added. All materials used in manufacturing aretraceable and are approved for direct food contact. Materials ofconstruction meet USP Biological Reactivity Test for Plastics,Class VI-121ºC. Filter cartridges are manufactured under an ISO9001:2008 certified quality system using the most advancedthermoplastic welding techniques to ensure filter cartridgeintegrity. LifeASSURE™ BNA filter cartridges are 100% integrity tested after manufacture to ensure quality.

Materials of Construction

Membrane Polyethersulfone

Support layers Polypropylene

Outer Cage, Inner Core, End Caps Polypropylene

Adaptor Polypropylene with polysulfone reinforcing ring

O-rings Various

Nominal Filter Dimensions

Effective Filtration Area (EFA) 0.79 m2

Filter Cartridge Diameter 70 mm

Filter Cartridge Lengths 10” (254 mm), 20” (508 mm),30” (762 mm), 40” (1016 mm)

Operating Parameters

Recommended Flow Rate Beer 3.8 – 7.6 lpm(10” element) Wine 7.6 – 11.4 lpm

Maximum 34 lpm per 68.9 mbar

Max. Differential Pressure 5.5 bar @ 25°C(Forward) 2.4 bar @90°C

Max. Differential Pressure 3.44 bar @ 25°C (Reverse)

Max. Hot Water Sanitation 90°C - 150 Temperature 30 minute cycles

Max. Steam Sterilization 135ºCTemperature 75 cycles, 30 minute cycles

NaOH cleaning duration 100 hours(conc. 1M @ 65°C)

Peracetic acid sanitation 100 hours(conc. 1% @ 21°C)

Recommended Flow Rate(10” element)

Beer 3.8 – 7.6 lpm

Wine 7.6 – 11.4 lpm

Maximum 34 lpm per 68.9 mbar

Recommended Change-outDifferential Pressure

35 psid (2.4 bar) @ 77oF (25oC) 240 kPa

Max. Differential Pressure(Forward)

5.5 bar @ 25oC2.5 bar @ 90oC

Max. Differential Pressure(Reverse)

3.44 bar @ 25oC

Max. Hot Water SanitationTemperature

90oC - 15030 minute cycles

Max. Steam SterilizationTemperature

135oC75 cycles, 30 minute cycles

NaOH cleaning duration(conc. 1M @ 65oC)

100 hours

Peracetic acid sanitation(conc. 1% @ 21oc)

100 hours

LifeASSURE™ BNA Filter Cartidge Ordering Guide

BNA

Example: The part no. for a 30” LifeASSURE BNA filter, 0.45 micron retention rating, 226 silicone O-ring connector with locating spear, would be BNA045F03BA.

045 - 0.45 µm065 - 0.65 µm

RatingCatalogue Number

F- APT Pleat

Configuration

01 - 10”02 - 20”03 - 30”04 - 40”

Length

B - 226 O-rings bayonet lock with spearF - 222 O-rings & flat capD - Double open end, flat gasket (10” multiples)E - Double open end, flat gasket (9¾” multiples)

End Modification

01 - 10”02 - 20”03 - 30”04 - 40”

O-ring / Gasket Material

Integrity Testing ParametersThe Integrity Test is a non-destructive test that can be performed by the user to ensure the filter is installed correctly and readyfor operation. LifeASSURE™ BNA filters can be Integrity Tested either manually, or with the automated CUNOCheck™ 2 tester, byone of three methods: the Forward Flow Test, the Bubble Point Test, or the Pressure Hold Test.

BNA045 BNA065 (0.45 µm) (0.65 µm)

Forward Flow 22 psi 15 psi Test Pressure (1.52 bar) (1.03 bar)

Max. Diffusion < 35 cc/min < 25 cc/min(10” element)

Minimum Bubble > 24 psi > 17 psi Point (1.65 bar) (1.17 bar)

Pressure Hold Test Consult 3M Consult 3M

Automated Integrity Testing - CUNOCheck™ 2A full range of non-destructive integrity tests can be easily and automatically performed with the CUNOCheck™ 2 integrity test instrument. The CUNOCheck™ 2 and MiniCheck integrity test instruments provide fast, reliable and accurate automated integrity testing of LifeASSURE™ BNA cartridges.

Issued July 2012

3M Purification Pty Limited140 Sunnyholt RoadBlacktown NSW 2148AUSTRALIATel. 1300 367 362Fax.1800 671 599www.3mpurification.com.au

New ZealandPO BOX 33-246North Shore 0740Auckland, NEW ZEALANDTel. 0800 362 886Fax.0800 362 880www.3m.com/nz

Important NoticeThe information described in this literature is accurate to the best of our knowledge. A variety of factors, however, can affect the performance of the Product(s) in a particularapplication, some of which are uniquely within your knowledge and control. INFORMATION IS SUPPLIED UPON THE CONDITION THAT THE PERSONS RECEIVING THE SAME WILLMAKE THEIR OWN DETERMINATION AS TO ITS SUITABILITY FOR THEIR USE. IN NO EVENT WILL 3M PURIFICATION BE RESPONSIBLE FOR DAMAGES OF ANY NATURE WHATSOEV-ER RESULTING FROM THE USE OF OR RELIANCE UPON INFORMATION.

It is your responsibility to determine if additional testing or information is required and if this product is fit for a particular purpose and suitable in your specific application.

Limitation of Liability 3M Purification Pty Limited will not be liable, to the extent permitted by law, for any loss or damage from the use of the Product(s), whether direct, indirect, special, or consequen-tial, regardless of the legal theory asserted, included warranty, contract, negligence or strict liability.

A – SiliconeB – FluorocarbonC – EPRD – Nitrile