Guideline of Sample Test (Trigger Sprayers) - Moonlight Blog

1. Appearance check

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The first thing we should do when we open parcel sent from supplier is check samples' appearance. Hold sample in hand and check if there is plastic flash, scratch, contamination, short shots, poor assemble etc. visual defects. If you required a color match sample, use color sample or Pantone color card. However, even you required a standard color sample. For example white color, it's also necessary to check if the spray pump can fit on paired bottle. There are numerous variations in white color like pearl white and creamy white.

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Weight check is an important but easily neglected testing step. There are countless factories making trigger sprayers, and their product pictures on website can look like the same thing. But different plastic wall thickness, invisible inside structure can lead to different dispensing performance and longevity. Weight check is one of useful methods to measure this. Simply put trigger sprayers(without dip tube and not used) on gram weigher and calculate average weight for at least 6 pieces of samples.

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