SH/T 0308-1992 PDF EnglishUS$350.00 · In stock · Download in 9 seconds
SH/T 0308-1992: Determination Method for Air Release Value of Lubricating oils Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure
Similar standardsSH/T 0308-1992: Determination Method for Air Release Value of Lubricating oils---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/SHT0308-1992SH Petrochemical Industry Standard of the People’s Republic of China Replacing SY 2693-85 Determination Method for Air Release Value of Lubricating Oils APPROVED ON: MAY 20, 1992 IMPLEMENTED ON: MAY 20, 1992 Approved by: China Petrochemical Corporation (Sinopec Group) Table of Contents1 Subject Content and Application Scope ... 3 2 Definitions ... 3 3 Overview of Method ... 3 4 Instruments and Materials ... 3 5 Test Procedures ... 5 6 Report ... 7 7 Precision ... 7 Additional information: ... 8 Determination Method for Air Release Value of Lubricating Oils1 Subject Content and Application ScopeThis Standard specifies the method for determining the ability of lubricating oil to separate mist from air. This Standard is applicable to petroleum products such as turbine oil and hydraulic oil.2 DefinitionsAir release value: Under the conditions specified in this Standard, the time required for the volume of mist air in the specimen to be reduced to 0.2%. This time is the bubble separation time and is expressed in min.3 Overview of MethodHeat the sample to 25°C, 50°C or 75°C, blow excessive compressed air into the specimen, and stir the specimen violently. The air forms small bubbles in the specimen, i.e., mist air. After stopping the air flow, record the time when the volume of the mist air in the specimen is reduced to 0.2%.4 Instruments and Materials4.1 Instruments The instrument consists of the following parts, as shown in Figure 1.5 Test Procedures5.1 Wash and dry the heat-resistant jacketed glass test tube with chromic acid solution; and install it according to Figure 1. 5.2 Pour 180mL of the specimen into the heat-resistant jacketed glass test tube and put it in a small density meter. 5.3 Connect the circulating water bath to allow the specimen to reach the test temperature; and generally, circulate for 30 min. 5.4 Read the value from the small density meter until it reaches 0.001g/cm3; move the small density meter up and down with tweezers; and read it again after it stops. The two readings shall be consistent. If the two readings do not repeat, read it again after 5 min until it repeats. Record this density value, which is the initial density d0. NOTE: It can also use a density balance with the same accuracy or more precision (division of 0.0001g/cm3). When using a density balance, the sinker shall be placed in a glass cylinder with a cover and placed in a circulating bath so that the sinker can reach the test temperature. When the sinker reaches the test temperature, carefully immerse it in the specimen without air bubbles sticking to it. Use platinum wire to add the sinker to the beam of the density balance so that the bottom of the sinker is 10 ± 2 mm away from the bottom of the jacketed test tube. 5.5 Take out the small density meter from the test tube; put it in the oven; and keep it at the test temperature. Put a vent pipe (as shown in Figure 2) in the test tube; connect the air source; and introduce compressed air after 5 min to make the pressure reach a gauge pressure of 19.6 kPa (0.2 kgf/cm2) at the test temperature. Maintain the pressure and temperature and adjust them if necessary. Turn on the air heater at the same time during ventilation to control the air temperature within ± 5°C of the test temperature. ......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 SH/T 0308-1992 be delivered?Answer: The full copy PDF of English version of SH/T 0308-1992 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 SH/T 0308-1992_English with my colleagues?Answer: Yes. The purchased PDF of SH/T 0308-1992_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 -- SH/T 0308-1992 -- 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.How to buy and download a true PDF of English version of SH/T 0308-1992?A step-by-step guide to download PDF of SH/T 0308-1992_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 "SH/T 0308-1992". 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 |
