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One Minute Read: Data traceability in cleanroom monitoring

One Minute Read: Data traceability in cleanroom monitoring

Documentation of data plays a crucial role in cleanroom monitoring. Other than serving as evidence in audit trail, the recorded data becomes critical when an abnormality is detected in a cleanroom as these recorded data would be needed by cleanroom operators to troubleshoot and diagnose the problem.

To find out what is happening when an abnormality is spotted, recorded data is traced to identify regular patterns and any suspicious particle event. It is also through this practice that a cleanroom monitoring plan could be reviewed and improved, leading to a much more efficient and cost-effective procedure.

To facilitate these processes, Particle Measuring Systems (PMS) has designed and launched a new series of aerosol particle counter, the Lasair® Pro series, which can store up to 10,000 data samples. Moreover, the process of data investigation can be expedited as the Lasair® Pro series allows data filtering by location, date, and time, making search and export of specific recorded data quick and easy.

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Events: ASEAN M&E (REVAC) @ Kuala Lumpur Convention Centre

Events: ASEAN M&E (REVAC) @ Kuala Lumpur Convention Centre

On 7-9 November 2022, Enviroterm had participated in the ASEAN M&E Show (REVAC) held in Kuala Lumpur Convention Centre. In this exhibition, we showcased our services and products catered to the HVAC and Healthcare industries. Today, we would like to thank all visitors for visiting our booth and their interests in our services and products.

If you would like to know more about our offering after visiting our booth, or if you’d missed the event but still wish to get the latest info about HVAC and Healthcare technologies, do not hesitate to drop us an email at sales@enviroterm.com!

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Airborne Particle Counter: Lasair® Pro

Airborne Particle Counter: Lasair® Pro

Sensitivity range: 0.3 – 25 µm

Particle Measuring Systems (PMS) is proud to present the latest in their flagship line of Lasair airborne particle counters. The Lasair Pro supports a complete contamination control solution including clean area monitoring (portable and remote) while meeting global requirements for data integrity. Designed for intuitive and reliable aerosol particle counting, this newest addition to the PMS fleet supports a variety of applications while meeting, and anticipating future, international cleanroom certification standards.

Designed to be easy to use, the multi-gesture touch screen interface and intuitive menu guide you through logical navigation, provide effortless learning and simple configuration. Additionally, it was specifically engineered for use where sanitization is required; the exterior of the Lasair Pro airborne particle counter can be easily cleaned using a wide variety of disinfectants and cleaning agents.

The Lasair Pro is highly adaptable, allowing you to program and manage all sampling activities locally or remotely. The unit can store up to 10,000 data samples and the collected data is securely saved and transferred meeting data integrity related standards such as FDA 21 CFR Part 11 and EU GMP Annex 11. Additionally, you can securely configure up to 100 users on each instrument or use the NFC card capabilities for unlimited users.

Read more about the Lasair Pro benefits and features below and explore what the new Lasair Pro can do for you today!

by Editor Editor

What is Chemical Oxygen Demand (COD)?

What is Chemical Oxygen Demand (COD)?

COD is a measure of the oxygen equivalent of the organic matter in a water sample that is susceptible to oxidation by a strong chemical oxidant. COD is widely used as a measure of the susceptibility to oxidation of the organic and inorganic materials present in water bodies and in the municipal and industrial wastes. The COD test of natural water yields the total quantity of oxygen that is required for oxidation of a waste to carbon dioxide and water. In a BOD test, only biologically reactive carbon is oxidized while in a COD test, all organic matter is converted to carbon dioxide. The test for COD does not identify the oxidizable material or differentiate between the organic material and inorganic material present. Similarly, it does not indicate the total organic carbon present. Consequently, the COD values are higher compared to BOD. Nevertheless, COD is a useful variable that can be rapidly measured; the COD test can be performed in 3 hours against 5 days required for a BOD5 test.

What are the applications of COD testing?

COD is often used as a measurement of pollutants in water, wastewater, and aqueous hazardous wastes. One application of the COD test is to measure soluble COD in wastewater, since characterization of total COD in wastewater is critical for accurate modeling of biotransformation in wastewater treatment processes.

Another application is to rapidly infer biodegradability of samples from the COD tests. This is commonly accomplished by establishing a correlation between COD and BOD. This method has been found successful when the proportions and types of materials in a wastewater remain relatively constant.

Why must we perform COD test?

In Malaysia, the Environmental Quality Act 1974 states that the owner/occupier of a premises shall conduct performance monitoring of the components of the effluent treatment system in the manner as specified in the Guidance Document on Performance Monitoring of Industrial Effluent Treatment Systems issued by Department of Environment; and equip himself or itself with facilities, relevant equipment or instruments for the purpose of conducting performance monitoring of effluent. Acceptable conditions for the discharge of industrial effluent or mixed effluent for parameter of Chemical Oxygen Demand (COD) must conform to standard A and standard B as per the Seventh Schedule and Eighth Schedule of the Environmental Quality Act 1974. The standards are as follows:

Industrial Effluent:

Trade/Industry

Unit

Standard A

Standard B

(a)    Pulp and paper industry

     

(i)      Pulp mill

mg/L

80

350

(ii)    Paper mill (recycled)

mg/L

80

250

(iii)   Pulp and paper mill

mg/L

80

300

       

(b)    Textile industry

mg/L

80

250

       

(c)     Fermentation and distillery industry

mg/L

400

400

       

(d)    Other industries

mg/L

80

200

Mixed Effluent:

Unit

Standard A

Standard B

mg/L

80

200

Sewage discharge must also comply to their respective standards, namely Standard A and Standard B. As per Environmental Quality Act 1974; an owner or occupier of any premises shall operate and maintain a sewage treatment system in accordance with sound engineering practice for the treatment of sewage and ensure that all components of the sewage treatment system are in good working condition. The standards are as follows:

Parameter

Unit

Standard A

Standard B

Temperature

°C

40

40

pH Value

6.0 – 9.0

5.5 – 9.0

BOD at 20 °C

mg/L

20

50

COD

mg/L

120

200

Suspended Solids

mg/L

50

100

Oil and Grease

mg/L

5.0

10.0

Ammoniacal Nitrogen (enclosed water body)

mg/L

5.0

5.0

Ammoniacal Nitrogen (river)

mg/L

10.0

20.0

Nitrate – Nitrogen (river)

mg/L

20.0

50.0

Nitrate – Nitrogen (enclosed water body)

mg/L

10.0

10.0

Phosphorous (enclosed water body)

mg/L

5.0

10.0

Contact us for COD related equipment!

HUMAS offers both On-Line and Off-Line COD measurement equipment, namely the HUMAS HS-1000Plus Portable Water Analyzer and HUMAS CODCR & NH3 Multi Automatic Water Analyzer, respectively. With Enviroterm Sdn. Bhd being the sole distributor of HUMAS water analyzer equipment, we are able to provide superb local support and servicing capability to our customers!

HS-1000 Plus Portable Water Analyzer

Features:
  • 23 items for measurement including COD(cr), COD(Mn), total nitrogen, total phosphorous, ammoniac nitrogen, nitric nitrogen, nitrate nitrogen, phosphoric acid etc
  • Battery and AC power compatible
  • Function to automatically turn off LCD for power savings
  • Semi-permanent light source-LED Lamp

HUMAS CODCR & NH3 Multi Automatic Water Analyzer

Features:
  • Precision control technology using a syringe pump
  • Easy maintenance & low reagent consumption
  • Reliable precision optical measurement system
  • Automatic cooling system

For more HUMAS water analyzer products, click on button below to download our brochure

For more information, email us at sales@enviroterm.com

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New Genano 350 Air Purifiers

New Genano 350 Air Purifiers

New GENANO 350 air purifiers draw air into the unit and through powerful plasma discharges, negatively charging any airborne particles including microbes and viruses. These negatively charged particles are then attracted to a positively charged collection surface.

The particle free air is then passed through an active carbon layer to remove VOC and odour and the resulting ultrapure air then passes back into the room.

A GENANO 350 unit can clean up to 300 m3/hour of air, meaning frequent air changes and the removal of airborne particles, including viruses, from the room. This makes this portable unit ideal for dental practices, patient rooms, examination rooms, waiting areas and even offices.

Click here for more information.

Available color: Black & White

Want more details? Contact us at sales@enviroterm.com

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Installation of Portable Air Decontamination and Cleanliness System

Installation of Portable Air Decontamination and Cleanliness System

Healthcare workers in Malaysia are now risking their health and lives to combat against COVID-19 and protect all Malaysians. To protect our front-liners from the risk of COVID-19 transmission, Enviroterm Sdn. Bhd. is proud to work hand-in-hand with KKM (MOH) by supplying the GENANO Air Decontamination units to many of the COVID-19 designated hospitals, including Hospital Sungai Buloh.

What makes GENANO Air Decontamination unit unique is its patented GENANO technology which collects and kills microorganisms including bacteria and viruses found in air. After the decontamination process, non-contagious clean air is released from the unit, greatly reducing the risks of virus transmissions through air, achieving a protective effect.

We would like to express our sincere gratitude to our healthcare workers for their dedications and sacrifices in battling against the pandemic. Thank you, front-line heroes!

Interested with Genano Air Decontamination Unit? Drop us an email at sales@enviroterm.com