The Exchange Test Method

LABORATORY TEST METHOD NO. H-4: TOTAL ABSORBENCY AND ABSORPTIVE CAPACITY PERSONAL HYGIENE PRODUCTS

  1. PURPOSE:

    To determine total absorbency and absorptive capacity of personal hygiene products. Absorbency reflects the ability of a specimen to absorb and hold moisture, while absorptive capacity reflects the ability of a specimen to absorb and hold moisture in relation to its own dry weight. Greater absorbency and absorptive capacity are desirable for comfort and hygienic reasons.
  2. PRINCIPLE:

    Test specimen is weighed then immersed in saline solution under controlled conditions and weighed again.
  3. APPARATUS AND MATERIALS:

  4. PROCEDURE:

  5. 5. EVALUATION:

    Net absorbency divided by weight of dry personal hygiene product = absorptive capacity.
  6. 6. REPORT