INTRODUCTION
The assessment of snap attachment strength is an important criterion especially in the design and manufacturer of garments of infants' and children wear. The measurement of an uniform force applied to the snap attachment shall be recorded by means of a force-measuring device (in this case a Calibrated Imada Push/Pull Scale is utilized). Once the appropriate force is registered on the Imada Scale, a stop clock is used for recording a set period of time.
To define the garments manufacturer responsibilities and duties to ensure that snaps are applied appropriately to all garments. To prevent separation between the snap and the garment, which represents a dangerous situation if the loose snap is swallowed.
This test method cover an uniform force required to pull a snap attachment perpendicular to the garment. The snap attachment is not forced to separate from the garment.
This test method is as per American Buyers and Covers almost all buyers specifications in America
This method is required attachment of snaps to specimens using specifications provided by the producers of the snaps.
This test method is used to establish correlation to wear conditions and for comparing different brands and types of snap fasteners.
Imperial Units (i.e., Kg./Pound force) are to be regarded as the standard. This standard may involve hazardous materials, operations, and equipment.
This standard does not address all the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health's practices and determine the applicability of the regulatory limitations prior to use.
SPECIFICATION
Load Range:                            30Kg
Load Resolution:                     1/50000(full capacity)
Load Accuracy:                         ≤±0.05%F·S        
                                                    2%-120%      applied load  ±0.5%
                                                    5%-1%       applied load  ±1.0%
Maximum crosshead travel      1100mm(YG026PC)    900mm(YG026M)
Elongation Resolution:              0.01mm
Effective width                            420mm
Frequency of data sampling      ≥800Hz  
Storage capacity                      ≥4000 sets
Speed Range                           0.1-1000mm/min 
Size and weight                        850×500×1800mm(L×W×H)          280kg(YG026PC)                    450×750×1550mm(L×W×H)                  200kg(YG026M)
FEATURES:
Dynamic Data Sampling More than 800HZ,most precisely to catch culmination value and indicate property of textile material;
Sharp blue LCD Panel,real time display test result, the operator simply selects the required test module and test standard;
A graphical icon on each button clearly illustrates its current function. This greatly simplifies the screen by only showing commands relevant to the current task;
Use Misbishi 16bit MCU, Misbishi 16bit A/D converter, more excellent anti-jamming, more rapid data transfer;
Pneumatic grip, standard joint (link) among sensor, grip and frame makes ease to change;
Real time display of on-going test data (Like mean square value, average, max, min, etc);
Able to preset tensile force;
Force unit:N,Kgf,1b,in,cN can be switched freely;
Report, diagram are handled by computer and print out from printer;
Calibration file to calibrate the unit and indicate with figure;
Operator can use LCD control panel to operate the unit and print testing data without PC (bidirectional controlling);
Protection, overload, over current, over voltage protection;
STANDARD CONFIGURATION:
TNG461  table vice for snap tester
TNG462  Force gauge(30 kg)
TNG463  Three pronged clamp  (universal type )
TNG464  Two pronged clamp  (universal type )
TNG465  extended jawed clamp(6inch)
TNG466  Lower Fabric Clamp
TNG467  Three pronged clamp
TNG468  Two pronged clamp