PQ/VCP refers to the WHO Prequalification process for Vector Control Products, which assesses a product’s quality, safety, and efficacy. For ITNs/LLINs, manufacturers must submit a prequalification dossier and provide supporting laboratory and field data to demonstrate long-term performance. (Source: WHO Extranet)
Note:
“PQ-approved” status applies only to the finished ITN/LLIN product.
Fabric suppliers should communicate that their materials are “compliant with” or “meeting the physical parameters specified in WHO PQ/VCP guidance”, and must not claim “prequalified” unless an official WHOPAR or WHO PQ certificate has been granted.
Polyester 75 or 100 denier multifilament (generally used for LN)
Mesh ≥ 24 holes/cm² (approx. ≈ 156 holes/in²), control of internal/batch uniformity.
Bursting strength (EN ISO 13938-2 or ISO 13938-1), snag strength, abrasion, resistance to hole formation, seam strength, dimensional stability after washing, flammability (EN 1102) – are all physical parameters that require data submission in the Data Requirements Module of the PQ/VCP.
Relates to durability – breathability – impregnation/release targets; minimum/typical data to be quoted in WHOPAR/public assessment.
Thu Huong company limited is an experienced manufacturer for greige mosquito net WHO Standard. We are the greige fabric supplier for PQ factories. The fabric meets WHO standards, PQ customers only need to do the final task of insectidal treatment. Then we can produce the mosquitonet
It is the pre-qualification of ITN/LLIN products by WHO PQ/VCP, based on quality-safety-performance profile & standard test data.
WHO specification for many LNs requires ≥ 24 holes/cm² (equivalent to ≈ 156/in²), but the exact value depends on the product design in WHOPAR.
EN ISO 13938-2/ISO 13938-1 for bursting; PQ also requires snag, abrasion, hole-formation, seam, flammability EN 1102 and stability after washing.
According to WHO guidelines, ≥ 20 standard lab washes and ~3 years of field use.
Professional WRAP KNIT manufacturer base on Vietnam
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