API RP 1637-2006 pdf free download

API RP 1637-2006 pdf free download.Using the API Color-Symbol System to Mark Equipment and Vehicles for Product Identification at Gasoline Dispensing Facilities and Distribution Terminals.
2.1 GENERAL (SEE FIGURE 1) 2.1.1 The majority of colors used in this equipment marking color-symbol system remain unchanged from those found in the Second Edition (September 1995). The third edition reflects the industry’s changing needs as a result of the introduction of ultra low sulfur distillates. The previous version included additions to address handling and safety requirements for oxygenated and alcohol-based fuels and slop or waste oil. Additionally, monitoring or observation well identification (as established in API Rec- ommended Practice 1615) is included here to complete the reference. Only easily distinguishable colors are used; this system does not attempt to define color shades. 2.1.2 In the equipment marking color-symbol system, a circle outline represents a gasoline product, a hexagon outline repre- sents a distillate-based product and an elongated pentagon represents an alcohol-blended product. 2.1.3 Superimposed crosses, bars and alpha-numeric designations for product names are used to further distinguish products. 2.1.4 Vapor-recovery connections and manholes are marked with orange circles. The gasoline symbol, the circle, is used because the principal environmental concern is with gasoline vapors. Note: Used oil is identified by a purple square. White lettering may be used to supplement the marking system.U.S. EPA’s Used Oil Manage- ment Standards (40 Code of Federal Regulations, Section 279) provide additional labeling requirements for used oil storage at generator, trans- fer, or processing and refining facilities. 2.1.5 Consistent with API Recommended Practice 1615, monitoring or observation wells are identified with a black equilateral triangle on a white background.
2.2 GASOLINE 2.2.1 All gasoline is identified with a circular marking. The marking system does not attempt to classify all the gasoline manu- factured by all the companies that operate refineries. At least five grades of unleaded gasoline are marketed under such names as super premium, premium, mid-regular, regular, and sub-regular. In addition, octane can vary by geographical location, season of the year, and refinery batch. The marking system provides for three grades of unleaded gasoline. The gasoline with the highest octane is marked red, the one with the lowest octane is marked white, and any intermediate grade is marked blue. This arrange- ment may present a problem in cases in which product is exchanged between two companies, where one company markets three grades of leaded gasoline and the other markets only two. In such cases, product names, octane ratings, or brand code numbers should be used to supplement the marking system. The white crosses on red and blue backgrounds and the black cross on the white background were originally added to identify unleaded gasoline. 2.2.2 Also critical in the transfer of bulk gasoline is the differentiation of neat gasoline from gasoline containing oxygenates. This is of particular concern where there are volatility limitations or restrictions regarding the use of such extenders or oxygen- ates. Most areas require the notation of such oxygenated gasoline in transfer or shipping documents. It is an option for the opera- tor to use the appropriate gasoline symbol surrounded by a white circle for high grade and middle grade and a black circle for low grade to indicate gasoline containing extenders or oxygenates. 2.3 DISTILLATES 2.3.1 All distillates are identified with a hexagonal marking. For low sulfur distillate identification, diesel is yellow, No. 1 fuel oil is purple with a yellow horizontal stripe, No. 2 fuel oil is green, and kerosene is brown.
2.3.3 A black letter “U” is added to the low-sulfur distillate color-code symbols identities in 2.3.1 to identify ultra low sulfur distillates. This applies to ultra low sulfur diesel (ULSD) and ultra low sulfur kerosene. 2.4 BIODIESEL 2.4.1 Biodiesel shall utilize bronze hexagonal symbol with an outer yellow band. The inner hexagon is marked with black or white lettering designating the biodiesel blend (e.g., B2, B5 or B20). 2.5 ALCOHOL-BASED FUELS 2.5.1 Alcohol-based fuels are primarily composed of alcohol with some amount of gasoline blended into the product. Where an alcohol based product is offered for sale in addition to the three primary gasoline grades, the background color shall be bronze. Black or white lettering (with company names or product codes) shall be used to further identify the product. For example, etha- nol containing 15 volume percent gasoline would be labeled “E-85.”