How to conduct a professional mask inspection

First of all, we need to understand the important components of the product routine inspection process, such as the appearance of the product, the conformity of the quantity, Product compliance check, the packing method, the inspection of the box mark and the field test. Corresponding inspection steps should be matched according to different products. “Mask” is composed of fabric and process with textile properties, so it follows the particularity of textile products to verify the standardization of “mask”.

How to conduct a professional mask inspection

1) Product appearance inspection: check whether the outer and inner layers of the “mask” are stained, dirty or damaged by naked eye and touch. Check the earring part of the mask and see if the joint is firm. Whether the nose clip of the mask is completely wrapped by non-woven cloth, check the tightness of the nose clip. In addition, the mask should be fully extended to check whether the edges of the mask are properly pressed, and the shape of the folds should be checked after the mask is extended. Check that masks, earrings and nose clips are the correct size.

2) Product quantity conformity check: Check whether the actual completed product quantity is consistent with the PO quantity in the order.

3) Product compliance checks:  A. product model is consistent with the customer ordered, whether products are for civilian or medical. If for medical, packaging requirements whether reach the standard of surgical masks, tensile test whether can meet the requirements of relevant mask of standard; General civil masks 10 n/s test is to be fulfilled within 10 Newton (for 10 seconds) according to the standard (GB/T32610-2016), surgical masks to meet 50 n/s test namely (within 50 Newton for 10 seconds).  B. Stratify the mask and check whether the mask is composed of three layers: inner, middle and outer. The fabric composition should include non-woven cloth and molten spray material.  C. Whether the material of the product is consistent with the customer’s requirements. For the comparison test of the material, color and gram weight respectively with the customer’s requirements or reference samples, polypropylene is the typical material for the manufacture of surgical masks.

4) Functional inspection: A. Place the mask on a piece of white paper and conduct a waterproof test. If the white paper is wet, the waterproof function of the mask does not meet the standard. B. Use an open flame to ignite the edge of the mask to test its flame retardation. A mask meeting the standard will not burn, and vice versa. C. Odor test and skin allergy test to check for pungent odor and ensure skin comfort. D. Electrostatic adsorption test: the masks with meltblown fabric inside will attract small pieces of paper.

5) Weighing check: Check the weight of the mask cut and divided into layers. As the mask is a special textile material, it must be weighed with a professional gram-plate. A sampler is used to cut the facemask of the facemask divided into layers.

Factory audit stadard

Factory Audits are performed according to the standard of ISO9000 or customized requirements.It helps the clients to know if the factory has the ability to complete their order as required.

For a standard Factory Audit, it mainly covers the below fields:

Factory Profile
It is the general information about the factory, such as the factory’s foundation date, the work floor area, the main customers, the number of employees, the organization and the product main process etc.

Factory Facilities and Machinery Conditions
It gives some basic information about the machines and facilities, such as the number of machines, the machine type, the maintenance condition and the housekeeping situation etc.

Electric Power Supply and Delivery / Loading Condition
To check if the public power supply is stable, if the factory has enough back-up power generators when needed and the time from the factory to the airport or port etc.

Production Capacity
To check if the factory’s production capacity in terms of number of machines, workers and warehouse etc. can meet the order volume.

Quality Assurance system
To check the factory’s quality control process in procurement, equipment calibration, in-coming material, manufacturing, final products and customer’s complaint handling areas.

Hygiene and Security
To check if the employees are in a good and safe working condition.

Doorbell Quality Control Inspection Service

Doorbell Quality Control Inspection Service

Some common factors for doorbell quality control:

Appearance

Quantity check

Measurement(weight & size)

Basic function test

Assembly check

APP loading test

Battery voltage test

Charging test

Aging test 5H

Chime and bideo doorbell distance check

Intercom distance check

PIR distance check

High/low temperature test

Night mode test

Versions number test

Video recording test

Video recording play test

working current test

Charging current test

Inner check

3M tape test for Logo

Barcode scanning

Carton dropping test

Doorbell Quality Control Inspection Service