QB/T 1327-1991 PDF EnglishUS$70.00 · In stock · Download in 9 seconds
QB/T 1327-1991: Test method for color rubbing fastness of leather surface Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Obsolete
Similar standardsQB/T 1327-1991: Test method for color rubbing fastness of leather surface---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/QBT1327-1991QB INDUSTRIAL STANDARD Test method for color rubbing fastness of leather surface APPROVED ON. NOVEMBER 25, 1991 Implemented on: AUGUST 1, 1992 Approved by. Ministry of Light Industry of the People’s Republic of China Table of Contents1 Contents and scope of application... 3 2 References... 3 3 Terminology... 3 4 Principles... 3 5 Equipment and materials... 4 6 Samples... 5 7 Test methods and result judgment... 5 8 Test report... 6 Additional information... 7 Test method for color rubbing fastness of leather surface1 Contents and scope of applicationThis standard specifies the method for determination of the color rubbing fastness of leather surface or use surface in case of dry friction and wet friction. This standard applies to light leather.2 ReferencesGB 406 Technical requirements for natural color cotton cloth GB 251 Grey scale for assessing staining GB 4689.1 Leather - Laboratory sample - Location and identification GB 4689.2 Leather - Physical an mechanical tests - Sample preparation and conditioning3 Terminology3.1 Gray scale. a color comparison card used to determine the staining degree by the comparison method. 3.2 Lining cloth. a cloth used to wrap the friction head, which shall comply with the requirements of 5.3. 3.3 Friction head. a part of instrument which directly abrades the sample, which shall comply with the requirements of 5.1b.4 PrinciplesIn the process of reciprocating friction on the surface of the leather at the specified pressure, part of color from is transferred from the leather surface to the lining cloth, AND the staining degree is determined using grey scale through visual observation. 7.2.2 MAKE the lining cloth wetted by the distilled water as specified in Clause 5.4, AND its moisture shall be 70% ~ 75% if weighed by balance. 7.2.3 The lining cloth after being subjected to wet rubbing shall be placed in the dark in room temperature air for natural drying, AND then the grey scale is used to conduct judgment in accordance with the provisions of 7.1.5. Note. It is allowed to conduct test for the entire piece of leather at the location as specified in Clause 6.1.8 Test reportThe report includes the following information. 8.1 Various characteristics of the sample. 8.2 Whether or not it is tested in accordance with this standard. 8.3 Each test result. 8.4 Special cases that occur during the test. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of English version of QB/T 1327-1991 be delivered?Answer: The full copy PDF of English version of QB/T 1327-1991 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice.Question 2: Can I share the purchased PDF of QB/T 1327-1991_English with my colleagues?Answer: Yes. 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