Introduction
Melt-blown cloth has the characteristics of small pore size, high porosity and high filtration efficiency, and is the core material of mask production. This instrument refers to GB/T 30923-2014 plastic Polypropylene (PP) Melt-blown Special Material, suitable for polypropylene as the main raw material, with di-tert-butyl peroxide (DTBP) as the reducing agent, modified polypropylene melt-blown special material.
Methods the principle
The sample is dissolved or swollen in toluene solvent containing a known amount of n-hexane as internal standard. An appropriate amount of solution was absorbed by microsampler and directly injected into gas chromatograph. Under certain conditions, gas chromatographic analysis was carried out. DTBP residue was determined by internal standard method.
Applications:
Used for measurement of shrinkage and relaxation of all kinds of cotton, wool, hemp, silk, chemical
fiber fabrics, clothing or other textiles after washing.
Meeting Standard:
GB/T8629-2017 A1、FZ/T 70009、ISO6330-2012、ISO5077、M&S P1、P1AP3A、P12、P91、
P99、P99A、P134,BS EN 25077、26330,IEC 456.
PL7-C Speed Dryers Is a used in paper-making laboratory,it is a laboratory equipment for paper drying.The machine cover, the heating plate is made of stainless steel (304),far-infrared heating,By thermal radiation baking 12 mm thick panel.Hot steam through cover fleece from the eduction in mesh.temperature control system use intelligence PID controlled heating. Temperature is adjustable,The highest temperature can reach 150 ℃. The thickness of the paper is 0-15mm.
The HS-12A headspace sampler is a new type of automatic headspace sampler with a number of innovations and intellectual property rights newly developed by our company, which is affordable and reliable in quality, integrated design, compact structure and easy to operate.
Instrument use:
Particle tightness (suitability) test for determining masks;
Standards compliant:
GB19083-2010 technical requirements for medical protective masks Appendix B and other standards;
Used for testing the lateral and straight elongation properties of all kinds of socks.
FZ/T73001、FZ/T73011、FZ/T70006.
Used for testing the fatigue resistance of a certain length of elastic fabric by stretching it repeatedly at a certain speed and number of times.
1. Color touch screen display control Chinese, English, text interface, menu type operation mode
2. Servo motor control drive, the core transmission mechanism of imported precision guide rail. Smooth operation, low noise, no jump and vibration phenomenon.
Testing for tear resistance of woven fabrics, blankets, felt, weft knitted fabrics and nonwovens.
ASTMD 1424、FZ/T60006、GB/T 3917.1、ISO 13937-1、JIS L 1096
It is used to determine the tearing strength of various woven fabrics (Elmendorf method), and can also be used to determine the tearing strength of paper, plastic sheet, film, electrical tape, metal sheet and other materials.
Tear resistance testing of woven fabrics, blankets, felt, weft braided fabrics, and nonwovens.
Used for measuring the bursting strength and expansion of fabrics, non-woven fabrics, paper, leather and other materials.