Needle felt glass fiber filter material - glass fiber - Filtration and Separation Industry

2 Normative references GB2828 batch inspection Sampling procedures and sample forms (for continuous batch of checks) GB5434 Textile terms and definitions GB/T5453 glass fiber fabric air permeability test method GB6007 glass mat Determination of mass per unit area GB6378 unqualified Rate Sampling procedures and charts (for continuous batch of checks) GB7689.4 textile woven glass fiber width and length of snout measured GB7689.6 Textile glass technology stretch woven fabric breaking strength and elongation of the determination (section sample method) GB/T7742 of textiles bursting strength and bursting distension determination Diaphragm method JC176 test method of glass fiber products, glass fiber needle cut 3 terminology felt filter material: glass fiber as raw material, after the stab for the comb chopped glass fiber mat to acupuncture, using mechanical methods to make glass fiber mat layer between the glass fiber mat layer glass fabric and enhanced mutual entanglement between the fibers, fiber mesh reinforcement can be made of non-woven mat filter material.

3 of this standard and other relevant terms and definitions, according to GB5434 requirements. 4 Products 4.1 specifications needle felt glass fiber product specifications in Table 1.

4.2 product code code include the following elements of glass needle felt: a. The type of glass; b. That acupuncture nonwovens letters, NWn; c. Unit area with a value that quality in grams per square meter as a unit. For example, ENWnl050. 5 5.1 Technical Requirements 5.1.1 Physical and Chemical Properties Physical and Chemical Properties of Glass Fiber Needle Felt should conform to the requirements in Table 1. Table 1 Specifications and physical and chemical performance index tensile breaking strength specifications of the width of code N/25mm × 200mm rupture strength of the quality of ventilation volume per unit area cm by the zonal MPa m [3] / m [2]. s g / m [2] +1.0 68.0 0 -3 ENWn1050 1150 1150 3.8 (150 ¯ 400) × 10 1050 ± 105 +1.0 85.0 0 5.1.2 needle felt glass fiber length of 50:: 3m, width see table 1 . Length and width of other business away from the supply and demand sides. 5.2 Appearance quality fiberglass needle felt products emerging delamination, no fiber felt layer, leakage glue, hole, crack, burn traces and 1cm [2] over the appearance of oil and other defects, regardless of size are as open cut processing. Each volume shall not exceed four times the number of open scissors, and the spell length of not less than 10m, or are unqualified. 6, the standard laboratory test methods 6.1 ambient temperature (20 ± 3) , relative humidity (65 ± 3)%. In other state tests, state test chamber temperature and humidity. 6.2 The quality of the sample required the appearance of specimen samples should conform to the requirements of 5.2, representative, felt surface should be flat, can not have creases and defects, from the carpet edge test Cheung is not less than 50mm. 6.3 per unit area per unit area measured the quality of the provisions in accordance with GB6007. 6.4 The width and length, width and length measured in accordance with the provisions of GB7689.4. Tensile breaking strength of 6.5 Determination of tensile breaking strength according to GB7689.6 regulations. 6.6 Determination of bursting strength bursting strength requirements in accordance with GB7742 implementation, test report should indicate the ring clamp diameter, pressurized liquid material and pressurized burst rate or time.

We are high quality suppliers, our products such as car key programming equipment Manufacturer , reprogramming car keys for oversee buyer. To know more, please visits car key programmer.

Related Articles - car key programming equipment Manufacturer, reprogramming car keys,

Email this Article to a Friend! Receive Articles like this one direct to your email box! Subscribe for free today!