This building block ensures that menstrual pads are not only functional, but also safe, hygienic, and compliant with health standards before reaching users. Pads are used on a highly sensitive part of the body, which makes strict quality assurance indispensable.
In Nepal, a sanitary pad standard exists but is not yet mandatory. Sparśa therefore chose to voluntarily design and test pads according to both national standards and international ISO-based procedures, ensuring user safety and long-term readiness for certification.
The quality assurance process is divided into two components:
1. Internal testing protocols
Developed in-house to support R&D, these tests measure:
- Total absorbency (immersion tests to measure overall liquid capacity).
- Retention under pressure (ability of the pad to hold liquid without leakage).
- Spreading behaviour (how liquid distributes across layers and wings).
- Bacterial load per layer (testing the core, topsheet, and wings separately to identify contamination sources).
These protocols allowed Sparśa to compare prototypes quickly and identify flaws before moving to external certification.
2. Standard certification testing
Once prototypes reached consistent performance, pads were tested in certified laboratories. Local labs in Nepal were prioritised for practicality, but benchmarked against ISO methods. External testing covered:
- Absorbency
- Retention
- Hygiene and microbial load
- Physical safety parameters
Since Sparśa uses natural fibres like banana fibre, viscose, and cotton, maintaining hygiene standards is even more critical than with synthetic pads. Natural fibres are compostable and environmentally preferable but can be more prone to bacterial growth if hygiene controls lapse. To address this, strict bioburden protocols were introduced: glove use at critical points (e.g. after fibre cooking), clean-room practices for pad assembly, and systematic bacterial count documentation.
Certification is not only a compliance requirement but also a trust-building tool — with users, health authorities, and donors — providing transparency and credibility in a sensitive sector.
Annexes include Nepal’s sanitary pad standards, Sparśa’s internal testing protocols, and hygiene guidelines, enabling practitioners to replicate the approach in other contexts.