PPE

national standard for flame retardant clothing gb8965.1-2009

This part of GB 8965 specifies the technical requirements, inspection (test) methods, inspection rules, marking, packaging and storage of flame retardant clothing

this part is applicable to the flame-retardant clothing worn by users in places with open fire, sparks, operation near molten metal, inflammable substances and fire risk

this part is not applicable to flame retardant protective clothing used in fire rescue

3.1

flame retardant protective clothing

protective clothing that can prevent itself from being ignited, flaming and smoldering within a certain period of time after contacting with flame and hot objects< 2 afterflame time under the specified test conditions, the time of continuous flame combustion of materials after removing (igniting) the fire source 3.3 smoldering time after glow time under the specified test conditions, when the flaming combustion is terminated, or when the ignition source is removed (ignited), the time of continuous flameless combustion of materials 3.4 damage length the maximum length of material damage area in the specified direction under the specified test conditions 3.5 thermal protective performance the thermal value of second degree burn caused by fabric penetration note: the higher the value of thermal protection, the stronger the thermal protection of fabric 4 grades flame retardant clothing is divided into three grades: A, B and C A) class A is suitable for users to wear flame-retardant clothing when they are engaged in open fire, sparking, and operating near molten metal with radiant heat and convective heat. The material requirements of class a flame retardant protective clothing are shown in Table 1 and table 2 ) class B is suitable for users to wear flame retardant clothing in places with open fire, sparks, flammable substances and fire risk. The material requirements of class B flame retardant protective clothing are shown in Table 1 and table 2 C) class C is suitable for temporary and non long term users to wear flame retardant clothing in places with flammable substances and risk of fire. The material requirements of class C flame retardant protective clothing are shown in Table 1 and table 2 5 requirements 5.1 materials 5.1.1 fabrics 5.1.1.1 flame retardancy the flame retardancy of fabrics can be divided into three grades: A, B and C. See Table 1 for items and indexes of flame retardancy. When tested according to Appendix A, 6.1 and 6.2, the flame retardancy after washing shall meet the requirements of Table 1 Table 1 items and indexes of flame retardant properties of fabrics test items protection grade indexes washing times thermal protection coefficient TPP / (kW – s / m2) grade a direct contact with skin: ≥ 126 there is a gap between skin and clothing: ≥ 250 grade B ≤ 50 50 b Grade < 100 grade C < 150 12 melting and dripping A, B, C – note 1: wash for 12.5h, rinse for 1.5h, change water twice during rinsing, and then dehydrate for 4min according to the washing conditions in Chapter 7 of GB / T 17596-1998. The whole process is washing for 50 times wash for 3 h and rinse for 0.5 h according to the washing conditions in Chapter 7 of GB / T 17596-1998, change the water twice during rinsing, and then dehydrate for 4 min. The whole process is washing 12 times note 2: see table a.1 for the tolerance of human tissues to second degree burns corresponding to the coefficient of thermal protection 5.1.1.2 internal quality the internal quality of flame retardant clothing materials should meet the requirements of Table 2 Table 2: physicochemical properties and indexes of noodle items indexes breaking strength / N before washing ≥ 450 after washing ≥ 400 tear strength (before washing) / N ≥ 25 moisture permeability / [g / m2 – 24h ≥ 6000 < cm < 3 < pilling / grade
< br / The size change rate of washing water is as the change rate of the wash wash size is 2.5-2.5-2.5 (5-2.5-2.5) formaldehyde content / (mg / kg) direct contact skin ≤ 75 non direct contact skin < 300 pH – 4.0 ~ 9.0 5.1.1.3 appearance quality the appearance quality of flame retardant clothing fabric shall comply with the relevant provisions of GB / T 17591 5.1.2 sewing thread 5.1.2.1 strength when tested according to 6.13, the single thread strength shall not be less than 10N 5.1.2.2 flame retardancy when tested according to 6.14, there is no melting and scorching phenomenon 5.1.3 accessories, accessories and lining cloth 5.1.3.1 accessories and accessories A) buckles, hooks and zippers should be easy to connect and release. Materials of buckles, hooks and zippers should not be fusible, flammable and deformable. 1f they have to be used, their surface should be covered with flame retardant clothing< Metal parts should not be in direct contact with the body. 1f rubber material is used, the covering material must be flame retardant. When lining must be used, lining must not melt C) reflective tape and other ingredients shall be used, and the ingredients must be flame retardant materials. The retroreflective coefficient of reflective tape shall meet the requirements of grade 2 or above reflective materials in 6.1 of GB 20653-2006, and the flame retardant performance shall meet the relevant requirements of this part 5.1.3.2 interlining polyester / cotton and cotton fabrics can be coated with hot melt adhesive interlining; 1t can be used for collar, coat surface, sleeve head, lower hem Kraft, trouser waist, bag cover and other parts. There was no glue penetration in the dressing, no blistering and no delamination after 20 times of washing 5.2 style the style should be simple, practical and beautiful, and should be selected in the following styles: A) upper and lower separate style ) clothes (HATS) one-piece style, etc 5.3 structure 5.3.1 it is safe and hygienic, which is conducive to the normal physiological requirements and health of human body 5.3.2 adapt to physical activities during operation, easy to put on and take off. The size should be loose 5.3.3 the open pocket must be covered with a bag cover, the length of the jacket should cover the upper end of the trousers by more than 20 cm, the cuffs, cuffs and collars should be closed, and the length of the bag cover should be greater than the length of the bag opening by 2 cm. The pockets on both sides of trousers shall not be inserted obliquely, so as to avoid open darting and folding upward, so as to avoid splashing molten metal and sparks entering or accumulating 5.3.4 it is not easy to hook, hang, twist and grind in operation 5.3.5 there should be air holes in the proper place for perspiration and humidity regulation. However, the ventilation pores shall not affect the strength of the garment, and the pore structure shall not make foreign matters enter the interior of the garment 5.4 model and specification 5.4.1 model according to the style and use requirements, select according to GB / T 13640, and set according to the range beyond GB / t13640 5.4.2 specifications and sizes according to the protection requirements, styles and fitness conditions, and referring to the control parts in GB / T 13640, the finished product size should be set, and the measurement position of the finished product size should comply with FZ / t81007. The size limit deviation can be determined according to different styles according to table 3, and those exceeding the requirements can be determined by themselves the limit deviation unit in Table 3 is cm part name allowable deviation of size limit collar size 0.6 length Top 1.0 top At the end of the joint, you can be a part of a joint, and the. Regulations Table 4 sewing needle spacing items needle spacing density remarks light and dark thread 3cm no less than 12 stitches except for special needs < 3cm no less than 9 stitches – manual needle 3cm no less than 7 stitches shoulder seam, armhole Collar no less than 9 stitches triangle stitches 3cm no less than 5 stitches single side keyhole thin thread 1cm no less than 12 stitches machine keyhole thick thread 1cm no less than 9 stitches manual keyhole < fine thread each hole no less than 8 stitches the height of foot winding thread should Thick thread no less than 6 pieces per eye 5.5.2 sewing process 5.5.2.1 all parts should be stitched smoothly, the line should be straight, neat and firm, the stitch should be uniform, the tightness of the upper and lower lines should be appropriate, and the start and end of the needle and the mouth of the bag should be firmly seized 5.5.2.2 the trademark position is correct, and the size mark is clear and correct 5.5.2.3 the sleeve is smooth and the position is suitable 5.5.2.4 the collar should be flat, not upturned, and there should be no wiring on the open line of the collar. The sleeve is smooth and the position is suitable 5.5.2.5 all exposed seams should be wrapped 5.5.2.6 the seam head of each part shall not be less than 0.8cm 5.5.2.7 the back crotch seam should be sewn with double thread or chain thread 5.5.2.8 the eye position is not deviated, and the keyhole stitch is beautiful, neat and plain 5.5.2.9 the fastener shall be firm and shall not be nailed on a single layer of cloth (except for decoration). The four clasps are firm and fit properly without deformation or over tightening. Button and buttonhole and four button up and down to alignment 5.5.2.10 the zipper is flat and the height is the same on the left and right 5.5.2.11 the symmetrical parts were basically the same 5.5.2.12 there shall be no two jumpers and continuous jumpers within 30 cm of each part, and jumpers are not allowed in chain stitch 5.5.2.13 flat in the face, no warping, no obvious wrinkle 5.5.2.14 symmetrical, accurate positioning of components 5.6 appearance 5.6.1 neat and beautiful, flat ironing, full shaping, neat stacking, no ironing yellow and water stains 5.6.2 the surface color difference of each part (piece, strip) of the same color fabric clothing shall not be less than grade 4, and the color difference of non surface parts shall not be less than grade 3-4. The color difference assessment level shall comply with the provisions of GB / T 250 5.6.3 the defects and stains have no influence on the appearance and firmness of the product. 1t should be observed at 1.5m away from the product under indoor standard lighting conditions, and the warp, weft and damage are not allowed 5.7 physical and chemical properties of clothing products 5.7.1 dimensional change rate of finished products after washing the dimensional change rate of finished products after washing is specified in Table 5< At the same time, the first-class products are the first-class products back crotch seam The strength of the joint with shoulder is not less than 320n / (5cm x 10cm). 5.7.3 formaldehyde content limit formaldehyde content released from finished products

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