Technical consultation on specifications and quality control of netting materials and mosquito nets
2. PHYSICAL CHARACTERISTICS OF NETTING MATERIALS FOR MOSQUITO NETS
In the 2000 meeting, three sets of specifications for netting material were discussed – for cotton, polyethylene and polyester, with a range of attributes and test methods proposed for polyester netting. However, as additional types of netting materials are being introduced into the market, the 2005 meeting recommended that generic minimum requirements for netting materials and mosquito nets should be developed. Producers can then develop materials that will possess the properties required of any type of netting.
Any mosquito net should comply with the following minimum attributes:
protect against insect/vector entry;
be strong and durable;
keep its dimensions after washing; and
be safe for users.
In addition, nets that are intended for treatment at the field level must be able to be treated correctly with an appropriate volume of insecticide formu- lation diluted in water.
Once these minimum attributes are met, the choice of netting material and nets is up to the buyers. Institutional buyers already include additional attributes in their tenders, e.g., size, colour, shape, doors, hanging rings and other net design and performance indicators, as appropriate to the intended application or local requirements.