GB/T 1721-2008 English PDFUS$169.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 1721-2008: Determination of appearance and transparency of varnishes, boiled oils and thinners Status: Valid GB/T 1721: Historical versions
Basic dataStandard ID: GB/T 1721-2008 (GB/T1721-2008)Description (Translated English): Determination of appearance and transparency of varnishes, boiled oils and thinners Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: G50 Classification of International Standard: 87.040 Word Count Estimation: 7,749 Date of Issue: 2008-06-04 Date of Implementation: 2008-12-01 Older Standard (superseded by this standard): GB/T 1721-1979 Quoted Standard: GB/T 3186; GB/T 6682 Regulation (derived from): Announcement of Newly Approved National Standards No. 9, 2008 (No. 122 overall) Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China Summary: This standard specifies the varnish, edible vegetable oil and thinner appearance and transparent method. This standard applies to varnishes, edible vegetable oil, paints and thinner appearance and transparency determination, that the presence of mechanical impurities and rendering turbidity. GB/T 1721-2008: Determination of appearance and transparency of varnishes, boiled oils and thinners---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. Determination of appearance and transparency of varnishes, boiled oils and thinners ICS 87.040 G50 National Standards of People's Republic of China Replacing GB/T 1721-1979 Varnish, edible vegetable oil and thinner appearance and Determination of opacity Posted 2008-06-04 2008-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordThis standard replaces GB/T 1721-1979 "varnish, edible vegetable oil and thinner appearance and transparency assays." The previous version of Standard GB/T 1721-1979 main technical differences are as follows. --- Increasing the normative references; --- Test ambient temperature changes (23 ± 2) ℃; Determination of increased transparency --- instrument method. The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee paint pigment. This standard was drafted. CNOOC Changzhou coating Chemical Research Institute. The main drafters of this standard. Huang Yidong Chen Feng. This standard was first published in 1979. Varnish, edible vegetable oil and thinner appearance and Determination of opacity1 ScopeThis standard specifies the method for determination of varnish, edible vegetable oil and thinner appearance and transparency. This standard applies to varnish, edible vegetable oil, paint thinners and determination of appearance and transparency, namely whether it contains mechanical impurities and rendered turbid degree.2 Normative referencesThe following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 3186 Paints, varnishes and raw materials for paints and varnishes - Sampling (GB/T 3186-2006, ISO 15528.2000, IDT) GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD)3 SamplingIn accordance with the provisions of GB/T 3186 to take a representative sample of the test product.4 Determination of transparency4.1 visually 4.1.1 Equipment 4.1.1.1 stoppered cuvette. capacity 25mL. 4.1.1.2 colorimetric frame. 4.1.1.3 straw. 10mL. 4.1.1.4 cylinders. 20mL, 100mL. 4.1.1.5 Balance. accurate to 0.01g. 4.1.1.6 spectrophotometer. 4.1.1.7 Wooden camera obscura. 500mm × 400mm × 600mm. Figure 1. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 1721-2008_English be delivered?Answer: Upon your order, we will start to translate GB/T 1721-2008_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 1721-2008_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 1721-2008_English will be deemed to be sold to your employer/organization who actually pays 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. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version GB/T 1721-2008?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 1721-2008 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. |
