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Saturation Indicators for Carbon Adsorbers, carbon Scrubbers and Filters
Hydrogen sulfide  Ammonia Odor control
Food, winery & Brewing Industries


Hydrogen sulfide and ammonia are responsible for most of the odor problems associated with food processing, brewery and winery operations. Emissions of these two gases in the workplace raise safety and health issues for employees as well as possible negative impact on the productivity of the operation. The use of Chemteq filter’s replacement indicator on the outlet of filter or carbon adsorber alerts the user when filter or carbon absorber is saturated and exhausted. Our filter replacement indicators, not only ensures the health and well-being of the employees in the workplace, but also ensures that residents in the vicinity of the plant are breathing odor-free air.



HYDROGEN SULFIDE

BTI (3.5” x 1”, ¾” male NPT), Item No. 185

BTI 2 (4.5” x 2”, 1½” male NPT), Item No. 406

BTI 3 (4.5” x 3”, 2½” male NPT), Item No. 436


AMMONIA

BTI (3.5” x 1”, ¾” male NPT), Item No. 196

BTI 2 (4.5” x 2”, 1½” male NPT), Item No. 403

BTI 3 (4.5” x 3”, 2½” male NPT), Item No. 433


AMMONIA & HYDROGEN SULFIDE

BTI (3.5” x 1”, ¾” male NPT), Item No. 192

BTI 2 (4.5” x 2”, 1½” male NPT), Item No. 402

BTI 3 (4.5” x 3”, 2½” male NPT), Item No. 432




HYDROGEN SULFIDE

BTI Inline (3.5” x 1”, ¾” male, male NPT), Item No. 611

BTIS (1.25” x 0.2”), Item No. 128-0000

Area Monitor/ Leak Detector (1.5” x 0.2”), Item No. 436

BTIS SMF, for sewer manhole filters (1.5” x 0.2”), Item No. 436


AMMONIA

BTI Inline (3.5” x 1”, ¾” male, male NPT), Item No. 617

BTIS (1.25” x 0.2”), Item No.128-0000


Ammonia and Hydrogen Sulfide

BTI Inline (3.5” x 1”, ¾” male, male NPT), Item No. 603

Facts about hydrogen sulfide

Hydrogen sulfide is an extremely hazardous gas which can be immediately life threatening at high concentrations (300 mg/m3 or 200 ppm)1. As concentrations approach 100 ppm, odor becomes imperceptible because of olfactory (sense of smell) fatigue. At these levels, the gas disrupts cellular respiration and may cause profound respiratory depression as well as cardiac dysrhythmias. At a concentration of 150 ppm, the olfactory nerve is paralyzed2. Hydrogen sulfide causes Inflammation of the moist membranes of eye and respiratory tract, olfactory neuron loss and death3.

    1. NIOSH: Occupational Exposure to Hydrogen Sulfide p.79 (1977) DHEW (NIOSH) Publication # 77-158.
    2. USEPA; Health and Environmental Effects Profile for Hydrogen Sulfide, p. 118 (1980), ECAO-CIN-026A.
    3. U.S. National Library of Medicine, CASRN: 7783-06-4.

Custom Filters Change Indicators are available
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Facts about ammonia

Ammonia has a sharp, irritating and pungent odor. The U. S. Occupational Safety and Health Administration (OSHA) has set a 15-minute exposure limit for gaseous ammonia of 35 ppm by volume in the environmental air and an 8-hour exposure limit of 25 ppm by volume, [ eight-hour time weighed average (TWA)]1. The National Institute of Occupational Safety and Health (NIOSH) recently reduced the IDLH* from 500ppm to 300ppm2.


  1. Agency for Toxic substances and Disease Registry (ATSDR), September 2004.
  2. NIOSH Pocket Guide to Chemical Hazards


*IDLH (Immediately Dangerous to Life and Health) is the level to which a healthy worker can be exposed for 30 minutes without suffering irreversible health effects

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Saturation Indicators for Carbon Adsorbers, carbon Scrubbers and Filters
Hydrogen sulfide  Ammonia Odor control
Food, winery & Brewing Industries