Bactericide (Aldehyde Type)

Corporate Specification for Oil Field ChemicalsSpecification of Bactericide(ONGC / WIC / 04 / 2007)

Physical State :
The material shall be in the from of a homeogenous free flowing liquid at 24±2^oC, free from visible impurites.
Turbidity of the Neat Sample, NTU : 3.0 (Maximum)
Miscibility of 1% (w/v) Sample in Fine Filtered Injection Water :
Should be completely miscible.
Compatibility Test :

• Turbidity of the Filtered - (1 Maximum)

Injection Water treated with Other Water Injection Chemical available in the asset/Basin when mixid with 100 ppm of Bactericide Sample, NTU
Thermial Stability Test :Should be stable uo to±5^oC
Test for functional Groups :

• Aldehyde Group Test (Schiff s Tollen s Test) : Positive
• Amine Group Test (Nitrous acid Test) : Nagetive

Performence Test :

• On Suphate reducing Bacteria : None of the bottles should show blackening till the end of the incubation period.
  At the start of the test the Sample Bactericide at 100 mg/litre concentration in duplicate bottles, is inoulated with Sulphate Reducing Bacteria challenge i.e 1% Inculum taken from a fully grown culture.
  (Test Solution contain 8.9 ml Strile Injuction Water + 1.0 ml (1000 mg /1 litre). Sample Solution + 0.1 ml Culture. Serial Dilution up to 10^-4 dilution of the Sample taken from each of end of 4 hour Contact tIme. Incubation is carried out for 28 days.
  Test is carried out at 35±1^oc and atmospheric pressure.
• On Aerobic Bacteria : None of the bottels should show turbidity till the end of the indubation period.
  At the start of the test, the Sample Bactericide at 100 mg / liter concentration in duplicate bottels is inculated with Aerobic Bacteria challeng, i. e. 1% Inoculum taken from a fully grown culture, Test Solution contains 8.9 ml Sterile Injection Water + 1.0 ml (1000 mg/litir) Sample Solution + 1.0 ml Culture. SerialDilution up to 10^-4 dilution of the sample taken from each of these bottles is carred out at end of 4 houre Contact Time. Incubation is carred out for 4 days (96 hours).
  Test is carried out at 35±1^oC and atmospheric Pressure.

Clause to be stipulated in NIT :

• The Manufacturer shall certify that Bactricide sypplied is stable during storege and transit and also that it dose not require any gas blanket in storeg.

Packing :
New HDPE barrels containing 200 kg net meterials Type 2.A Class L . Capacity 220 Lts of 6312 IMDG Mark.
Marking :
Each barrel shell have clearly legible marking given below :

• Supply Order No.
• Name of the Manufecturar
• Name of the Product / Brand
• Month/year of Manufecturing
• Lot No. and batch No.
• Gross Weagth & Net Weaght of the berrel
• Address of the Consignce

Important Note :
The Manufecturer shell certify that the Bactericide Supplied is stable during storage and transit and alsothat it dose not require any gas blanket in storege.