Sampling Guidelines
To best serve our customers, please note to send water and wastewater samples as follows:
1.Volume of the sample
Depending on types of sample and parameters to be analyzed, the sample volume can be changed from 1 to 5 liters. However, with basic parameters such as pH, BOD, COD, TSS, Ammonia, Nitrate, Nitrite, TN, Phosphate, TP, etc, sample volume of 2 liters is often enough for analyzing.
2. Bottle containing water and/or wastewater samples
To ensure the quality and condition of the original sample not changed, water and/or wastewater samples should be contained in plastic or glass bottles. Do not contain in a plastic bag because of leakage and change of characteristics.
To avoid affecting the accuracy of analysis methods, the sample should be kept at around 5°C when transferred to the laboratory.
3. Time of analyzing
Normally, the analysis time is from 3 to 4 days for air and gas samples, from 7 to 8 days for water and wastewater samples.
In some cases, depending on request of customers, we can analyze fast in from 1 to 2 days but it depends on types of parameters and numbers of samples.
4.Time of storage sample
Saigon Green Laboratory will store the samples according to guidelines of ISO/IEC 17025:2005 about 5 days after submitted reports to Clients.
5.Time of receiving reports
– From Monday to Friday:
+ In the morning from 8:00 to 11:30
+ In the afternoon from 13:30 to 17:00
– On Saturday
+ Only in the morning from 8:00 to 11:30
(Exception on holidays)