GB/T 10119-2008 PDF EnglishUS$170.00 · In stock · Download in 9 seconds
GB/T 10119-2008: Determination of dezincification corrosion resistance of brass Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 10119: Historical versions
Similar standardsGB/T 10119-2008: Determination of dezincification corrosion resistance of brass---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/GBT10119-2008GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 77.120.99 H 13 Replacing GB/T 10119-1988 Determination of dezincification corrosion resistance of brass (ISO 6509:1981, Corrosion of metals and alloys - Determination of dezincification resistance of brass, MOD) ISSUED ON: MARCH 31, 2008 IMPLEMENTED ON: SEPTEMBER 01, 2008 Issued by: General Administration of Quality Supervision, Inspection and Quarantine of PRC; Standardization Administration of PRC. Table of ContentsForeword ... 3 1 Scope ... 5 2 Principle of methods ... 5 3 Reagents and materials ... 5 4 Test instrument and equipment ... 5 5 Specimen preparation and requirements ... 6 6 Test conditions and procedures ... 6 7 Microscopic observation and measurement ... 8 8 Test report ... 9 Appendix A (Informative) Comparison of clause numbers between this standard and ISO 6509:1981 ... 11 Appendix B (Informative) Technical differences between this standard and ISO 6509:1981, as well as their reasons ... 12 Determination of dezincification corrosion resistance of brass1 ScopeThis standard specifies the method for determining the dezincification corrosion resistance of brass materials. This standard applies to the determination of dezincification corrosion resistance of brass materials.2 Principle of methodsBecause different brass materials have different dezincification corrosion rates, the use of copper chloride solution can accelerate the dezincification corrosion of brass, thereby producing different depths of dezincification layers, the depth of which is measured by a metallurgical microscope.3 Reagents and materials3.1 Copper chloride solution (10 g/L): Dissolve 12.7 g of copper chloride (CuCl2 • 2H2O) in distilled water or deionized water. Dilute it to 1000 mL (prepare it before use). 3.2 Epoxy resin or other non-conducting materials, which have similar properties. 3.3 Anhydrous ethanol.4 Test instrument and equipment4.1 Test device: Constant temperature water bath or oil bath. 4.2 Metallurgical microscope (with micrometer eyepiece). 4.3 Glass beaker (1000 mL). 4.4 Hair dryer. 4.5 Polishing machine. 4.6 Dryer.5 Specimen preparation and requirements5.1 Sampling 5.1.1 Forgings and castings specimens shall be taken at the thinnest and thickest part of the cross-section, respectively. The specimens of extruded, drawn or rolled products shall be taken, parallel and perpendicular to the processing direction. 5.1.2 Take at least 3 parallel specimens each time. 5.1.3 The size of the specimen shall be as close as possible to 10 mm × 10 mm × 10 mm. The exposed area of the specimen shall be about 100 mm2. If this requirement is not met, it shall take the largest area. 5.1.4 When sampling, it shall keep the original state of the specimen, to avoid deformation of the specimen, due to clamping or sawing, OR other changes that affect the test results. 5.2 Preparation of specimen 5.2.1 It is embedded by epoxy resin or other non-conducting materials (3.2). 5.2.2 The exposed surface of the specimen is ground by metallographic sandpaper; finally polished by No.500 water sandpaper. 5.2.3 Use water to wash the ground specimen. Use absolute ethanol to wipe it. Use hair dryer (4.4) to blow it dry. If the corrosion test cannot be performed in time, it shall be stored in a desiccator (4.6).6 Test conditions and procedures6.1 Test conditions 6.1.1 Temperature of test solution: 75 °C ± 2 °C. 6.1.2 Volume of test solution: mL of copper chloride solution (3.1) is required, for every 100 mm2 of the actual exposed area of the specimen. 6.1.3 Test time: 24 h continuously. 6.1.4 Only parallel specimens of the same alloy material can be placed in each test beaker (4.3). ......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 GB/T 10119-2008 be delivered?Answer: The full copy PDF of English version of GB/T 10119-2008 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 GB/T 10119-2008_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 10119-2008_English will be deemed to be sold to your employer/organization who actually paid for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. www.ChineseStandard.us -- GB/T 10119-2008 -- Click this link and select your country/currency to pay, the exact amount in your currency will be printed on the invoice. Full PDF will also be downloaded/emailed in 9 seconds.Question 5: Should I purchase the latest version GB/T 10119-2008?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 10119-2008 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.How to buy and download a true PDF of English version of GB/T 10119-2008?A step-by-step guide to download PDF of GB/T 10119-2008_EnglishStep 1: Visit website https://www.ChineseStandard.net (Pay in USD), or https://www.ChineseStandard.us (Pay in any currencies such as Euro, KRW, JPY, AUD).Step 2: Search keyword "GB/T 10119-2008". Step 3: Click "Add to Cart". If multiple PDFs are required, repeat steps 2 and 3 to add up to 12 PDFs to cart. Step 4: Select payment option (Via payment agents Stripe or PayPal). Step 5: Customize Tax Invoice -- Fill up your email etc. Step 6: Click "Checkout". Step 7: Make payment by credit card, PayPal, Google Pay etc. After the payment is completed and in 9 seconds, you will receive 2 emails attached with the purchased PDFs and PDF-invoice, respectively. Step 8: Optional -- Go to download PDF. Step 9: Optional -- Click Open/Download PDF to download PDFs and invoice. See screenshots for above steps: Steps 1~3 Steps 4~6 Step 7 Step 8 Step 9 |
