Air Services

Acoustics & Air Testing Laboratory (A+A)*L has provided indoor air quality investigation, testing services to professions within building services and property industries and to government organizations since 1999. Our Indoor Air Quality assessments are to be carried out in accordance with the HKSAR Government Guidance “Guidance Notes for the Management of Indoor Air Quality in Offices and Public Places”. (A+A)*L has been approved as Accredited IAQ Certificate Issuing Body (CIB) by the HKAS Executive and has been assigned registration no.  as HIKAS Inspection Body (Type A Inspection Body).

學及空氣測試實驗室有限公司(A+A)*L1999年開始為香港私營企業提供獨立空氣專業測試服務。本公司擁有多種精密的測試儀器和設備,根據香港特別行政區政府室內空氣質素管理小組所修的指引 <<辦公室及公眾場所室內空氣質素管理指引>> 的測試標準和規範進行室內空氣質素檢定及證書簽發服務。本公司是經香港特別行政區政府創新科技署轄下的香港認可處所認可之甲類檢驗機構 [認可編號為 ]

IAQ Certification procedure for premise 室內空氣質素檢定程序

IAQ Objective 辦公室及公眾場所的室內空氣質素指標

IAQ Parameter

室內空氣質素參數

Sources 源頭

8-hr average 八小時平均值

Excellent Class

卓越級

Good Class

良好級

Carbon Dioxide二氧化碳 (CO2)

*  Combustion 燃燒過程

*  Respiratory product 呼吸作用

< 800 ppm

< 1,000 ppm

Carbon Monoxide一氧化碳 (CO)

*  Combustion燃燒過程

*  Smoking 吸煙

*  Vehicle exhaust seeping through街外汽車廢氣

< 1.7 ppm

< 8.7 ppm

Respiratory Suspended Particulates 可吸入懸浮粒子 (RSP)

* Combustion 燃燒過程

* Smoking吸煙

*  Photocopying 影印

*  Vehicle exhaust seeping through 街外汽車廢氣

< 20μg/m3

< 180μg/m3

 

Nitrogen Dioxide二氧化氮 (NO2)

* Combustion 燃燒過程

* Smoking吸煙

* Vehicle exhaust seeping through街外汽車廢氣

< 40μg/m3

< 150μg/m3

Ozone臭氧 (O3)

*  Laser printer雷射打印機

* Photocopying 影印機

< 25 ppb

< 61 ppb

Formaldehyde甲醛 (HCHO)

*  Adhesives 膠黏劑

*  Furniture 傢俱

*  Paints 油漆

*  Smoking 吸煙

< 30μg/m3

< 100μg/m3

Total Volatile Organic Compounds總揮發性有機化合物 (TVOC)

*  Cleaning agents清潔用品

*  Disinfectants 消毒劑

*  Paints and Solvents油漆及溶解

*  Furniture and furnishings傢俱及室內陳設

*  Smoking吸煙

*  Printing inks 油墨

< 87 ppb

< 261 ppb

Radon氡氣 (Rn)

*  Building material such as concrete made with granite花崗岩

< 150 Bq/m3

< 200 Bq/m3

Airborne Bacteria空氣中細菌

*  Carpets or building material are mouldy or wet地毯

*  Poor ventilated premises空氣不流通的地方

< 500 cfu/m3

< 1,000 cfu/m3

Air Movement空氣流動速度

----

< 0.2 m/s

< 0.3 m/s

Room Temperature室內溫度

----

20-25.5 oC

< 25.5 oC

Relative Humidity相對濕度

----

40-70%

< 70%

 

Measurement Setup 室內空氣質素

 

Indoor Air Quality Assessment

IAQ Assessment

Ductworks Air Flow Properties Measurement

Flow Properties Measurement

Pressure, Flow Rate, Leakage Measurement

Air Leakage Rate Measurement