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BTI 3

Filter Change Indicator

Dimensions: Length = 114.3mm (4.5”), Diameter = 76.2mm (33.0”), Inlet = 2.5” Male NPT

BTI 3

The breakthrough (saturation) indicators are colorimetric indicators that indicate the saturation and exhaustion of carbon adsorbers and filters. The indicators are reliable and cost effect means for protection from exposure to toxic gases and vapors in the work place. Indicators change color when carbon adsorbers, carbon scrubbers and filters are saturated with target gases or vapors. Hence alerting the user to replace the exhausted carbon adsorber or filter. The indicators are easily connected to the 2½ inch female NPT outlet of the carbon absorber or filter using the 2½ inch male NPT threading at the bottom of the indicator. It is highly sensitive to targeted gases or vapors. The indicator is 4.5-inch-tall, 3-inch diameter and you can observe the bright vibrant color change from all directions. The unique design of the indicator prevents any color change due to exposure to contaminants in the surrounding environment and changes color only when carbon absorber or filter is saturated.

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AVAILABILITY

Chemicals Detected

Part Number

Minimum Detectable

Shelf Life (Months)

Service Life (Months)

Operating Temperature

Acids

431

4ppm●min

14

14

32oF to 122oF

Acids Disposable

431 D

4ppm●min

14

14

32oF to 122oF

Ammonia

433

10ppm●hr

24

18

-4oF to 149oF

Ammonia Disposable

433 D

10ppm●hr

24

18

-4oF to 149oF

Ammonia & hydrogen sulfide

432

10ppm●hr

24

18

-4oF to 149oF

Ammonia & hydrogen sulfide Disposable

432 D

10ppm●hr

24

18

-4oF to 149oF

Basic Vapors

435

1ppm●min

14

12

-4oF to 131oF

Basic Vapors Disposable

435 D

1ppm●min

14

12

-4oF to 131oF

Formaldehyde

437

0.4ppm●hr

12

12

-4oF to 131oF

Formaldehyde Disposable

437 D

0.4ppm●hr

12

12

-4oF to 131oF

Hydrazines

439

0.15ppm●hr

24

18

-4oF to 149oF

Hydrazines Disposable

439 D

0.15ppm●hr

24

18

-4oF to 149oF

Hydrogen sulfide

436

1ppm●min

24

18

-4oF to 149oF

Hydrogen sulfide Disposable

436 D

1ppm●min

24

18

-4oF to 149oF

Hydrogen sulfide WP

445

1ppm●min

24

18

-4oF to 149oF

Hydrogen sulfide WP Disposable

445 D

1ppm●min

24

18

-4oF to 149oF

Hydrogen sulfide WP HC Disposable

447

5ppm●hr

24

18

-4oF to 149oF

Hg & Hg II Compounds

442

0.5mg/m3●hr

12

12

32oF to 122oF

Hg & Hg II Compounds Disposable

442 D

0.5mg/m3●hr

12

12

32oF to 122oF

BTI 3 refill Kits

Item No.

Colorimetric indicator Assembly

No. of Items

Part Number

1

Acid Gases and Vapors

1

431-1600

2

Ammonia Vapor

1

433-1600

3

Ammonia & Hydrogen Sulfide

1

432-1600

4

Basic Vapors

1

435-1600

5

Formaldehyde Vapor

1

437-1600

6

Hydrazine Vapor

1

439-1600

7

Hydrogen Sulfide Gas

1

436-1600

8

Hg & Hg II Compounds

1

442-1600

Components of the BTI 3 Refill Kits

Item No.

Description

No. of Items

Part Number

1

Colorimetric indicator Assembly

1

See table below for specific indicator

2

Cotter Pin (1/16” x 1/2”)

3

436-1300

3

Porous Plug

2

436-1400

4

Sorption media

1

Acids (PN: 431-5200), ammonia (PN: 433-5200), hydrogen sulfide (PN: 436-5200), formaldehyde (PN: 417-5200), hydrazine (PN: 439-5200), Mercury (PN: 442-52000

BTI Inline

(3.5” x 1”, ¾” male, male NPT)

Filters Breakthrough Indicators Inline for Acids, Ammonia, Basic Vapors, Formaldehyde, Humidity, Hydrazine, Hydrogen Sulfide and Mercury

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