I.Purpose
To standardize the testing method for the discharge volume (dosage) of perfume crimp sprayer, lotion pump, fine mist sprayer, and trigger sprayer pumps.
II. Scope
This test method is applicable to all pumps used for alcohol-based or viscous products.
III. Instruments and equipment required for use
Balance/Electronic Scale: Accurate to 0.01g
Test Media: 96%Ethanol solution (for perfume pumps).
Water (for lotion pumps and spray pumps).
IV. Testing Procedures
1.Sampling Stage:
Development phase: Select 10 representative samples.
Internal inspection stage: Sampling should be carried out according to the "Routine Inspection Single Sampling Plan" in GB/T 2828-2012.
2.The product is placed in a 23 ℃/50% RH environment for 24 hours;
Identify the bottle to be tested.
3.Fill each bottle with 96% ethanol solution (perfume pump) or 100ml water (lotion pump, fine mist spray pump, etc.) of the marked capacity of the product.
4.Manually press the pump head until the liquid is discharged.
5.Press again 10 times (once per second).
6.Place the bottle on the balance and set the tare weight to 0g.
7.Remove the bottle from the balance and press it again 10 times (once per second).
8.Weigh the bottle.
9.Divide the displayed value by 10 to obtain the dispensing volume of the dispenser, and record the dispensing volume.
V. Calculation and Conversion
For water(lotion pump), we will not consider the density of water. (ρ water=1.00 g/cm ³)
For Ethanol (Perfume Pumps): The density of 96% ethanol must be considered:(ρ Ethanol 96%=0.83 g/cm ³)
VI. Defect Classification and Evaluation
| Defect description | Defect Classification | ||||
|
Zero Defect
|
Serious
AQL 0.15%
|
Main
AQL 0.65%
|
Slight
AQL 1.5%
|
Very Slightly
AQL 4.0%
|
|
| The liquid output does not meet the packaging material standards | √ | ||||
VII. Sample Retention Policy
All tested samples and original reference samples must be retained for 6 months following the completion of the test.