微信公众号随时随地查标准

QQ交流1群(已满)

QQ群标准在线咨询2

QQ交流2群

购买标准后,可去我的标准下载或阅读

This specification covers aluminum and aluminum-alloy seamless pipe and seamless extruded tube for gas and oil transmission and distribution piping systems. The pipe and tube shall be produced from hollow extrusion ingot (cast in hollow form or pierced) and shall be extruded by use of the die and mandrel method. The pipe and tube shall conform to the chemical composition requirements specified. The determination of chemical composition shall be made in accordance with suitable chemical (test methods E 34), or spectrochemical (test methods E 227, E 607, and E 1251) methods. Heat treatment for the production of T1 and T5-type tempers shall be in accordance with Practice B 807, and for the production of T4 and T6-type tempers, except as noted, shall be in accordance with practice B 918. Unless otherwise specified, alloys 6061, 6063, and 6351 may be solution heat treated and quenched at the extrusion press in accordance with practice B 807 for the production of T4 and T6-type tempers, as applicable. The material shall conform to the tensile property requirements specified. The tension tests shall be made in accordance with test methods B 557 and B 557M. Pipe and tube heat treated at the extrusion press shall conform to all requirements specified.1.1 This specification covers seamless pipe and seamless extruded tube in the aluminum and aluminum alloys (Note 1) and tempers listed in Table 1 and Table 2, respectively. Seamless pipe and seamless tube are intended for use in applications involving internal pressure.Note 1—Throughout this specification use of the term alloy in the general sense includes aluminum as well as aluminum alloy.Note 2—For drawn seamless tubes, see Specifications B210 and B210M; for extruded tubes, Specifications B221 and B221M; for drawn seamless tubes for condensers and heat exchangers, Specifications B234 and B234M; for seamless pipe and seamless extruded tube, B241/B241M; for round welded tubes, Specification B313/B313M; for seamless condenser and heat exchanger tubes with integral fins, Specification ; for extruded structural pipe and tube, Specification B429/B429M; and for drawn tube for general purpose applications, Specification B483/B483M.1.2 Alloy and temper designations are in accordance with ANSI H35.1 [H35.1M]. The equivalent Unified Numbering System alloy designations are those of Table 3 preceded by A9, for example, A93003 for aluminum alloy 3003 in accordance with Practice E527.1.3 For acceptance criteria for inclusion of new aluminum and aluminum alloys in this specification, see Annex A2.1.4 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.TABLE 1 Tensile Property Limits for Extruded Seamless PipeA,BAlloy Temper Pipe Size,in. Strength, min, ksi [MPa] ElongationC,DTensile Yield (0.2 % Offset) in 2 in. [50 mm] or 4×Diameter, min, % in 5 × D(5.65)3003 H18 under 1 27.0 [185] 24.0 [165] 4 4 H112 1 and over 14.0 [95] 5.0 [35] 25 226061 T6 under 1 38.0 [260] 35.0 [240] 8 ... 1 and over 38.0 [260] 35.0 [240] 10E 96063 T6 all 30.0 [205] 25.0 [170] 8 76351 T5T6 allall 38.0 [260]42.0 [290] 35.0 [240]37.0 [255] 10E10F 99A The basis for establishment of mechanical property limits is given in Annex A1 of this specification.B To determine conformance to this specification, each value for tensile strength and for yield strength shall be rounded to the nearest 0.1 ksi [MPa] and each value for elongation to the nearest 0.5 %, both in accordance with the rounding method of Practice E29.C Elongation of full-section and sheet-type specimens is measured in 2 in.; of cut-out round specimens, 4× specimen diameter.D Elongations in 50 mm apply for pipe tested in full sections and for sheet-type specimens machined from material up through 12.5 mm in thickness having parallel surfaces. Elongations in 5 × D (at 5.65), where D and A are diameter and cross-sectional area of the specimen, respectively, apply to round test specimens machined from thicknesses over 6.30 mm.E The minimum elongation for a wall thickness up through 0.249 in. [6.3 mm] is 8 %.F For wall thickness 0.124 in. [3.20 mm] and less, the minimum elongation is 8 %.TABLE 2 Tensile Property Limits for Extruded Seamless TubeA,BTemper Specified WallThickness, in. [mm] Area, in.2 [mm2] Tensile Strength, ksi [MPa] Yield Strength(0.2 % offset)ksi [MPa], min ElongationC,Dmin max in 2 in. [50 mm] or4 × D min,% in 5 × D(5.65)EAluminum 1060FOH112 allall allall 8.5 [60]8.5 [60] 14.0 [95]... [...] 2.5 [15]2.5 [15] 2525G 2222GAlloy 3003FOH112 allall allall 14.0 [95]14.0 [95] 19.0 [130]... [...] 5.0 [35]5.0 [35] 2525 2222Alloy Alclad 3003FOH112 allall allall 13.0 [90]13.0 [90] 18.0 [125]... [...] 4.5 [30]4.5 [30] 2525 2222Alloy 5083FOH111H112 all [130.00]all [130.00]all [130.00] up through 32.0 [20 000]up through 32.0 [20 000]up through 32.0 [20 000] 39.0 [270]40.0 [275]39.0 [270] 51.0 [350]... [...]... [...] 16.0 [110]24.0 [165]16.0 [110] 141212 121010Alloy 5086FOH111H112 all [130.00]all [130.00]all [130.00] up through 32.0 [20 000]up through 32.0 [20 000]up through 32.0 [20 000] 35.0 [240]36.0 [250]35.0 [240] 46.0 [315]... [...]... [...] 14.0 [95]21.0 [145]14.0 [95] 141212 121010Alloy 6061FOH all all ... [...] 22.0 [150] 16.0I [...] 16 14T1 [16.00] all [180] ... [...] [95] 16 14 all all 26.0 [180] ... [...] 16.0 [110] 16 14T42J all all 26.0 [180] ... [...] 12.0 [85] 16 14T51 [16.00] all [240] ... [...] [205] 8 7 up through 0.249 [6.30]0.250 and over [6.30] allall 38.0 [260]38.0 [260] ... [...]... [...] 35.0 [240]35.0 [240] 810 ...9Alloy 6063FOHT1K allup through 0.500 [12.50]0.501–1.000 [12.50–25.00] ... [all]allall ... [...]17.0 [115]16.0 [110] 19.0 [130]... [...]... [...] ... [...]9.0 [60]8.0 [55] 181212 [...] 161010T4, T42L up through 0.500 [12.50] all 19.0 [130] ... [...] 10.0 [70] 14 12 0.501–1.000 [12.50–25.00] all 18.0 [125] ... [...] 9.0 [60] 14 [...] 12T5 up through 0.500 [12.50] all 22.0 [150] ... [...] 16.0 [110] 8 7 0.501–1.000 [12.50–25.0] all 21.0 [145] ... [...] 15.0 [105] 8 [...] 7T52 up through 1.000 [25.00] all 22.0 [150] 30.0 [205] 16.0M [110] 8 7T6, T62L up through 0.124 [3.20] all 30.0 [205] ... [...] 25.0 [170] 8 ... 0.125–1.000 [3.20–25.00] all 30.0 [205] ... [...] 25.0 [170] 10 7Alloy 6070FT6, T62L up through 2.999 up through 32 48.0 [330] ... [...] 45.0 [310] 6 5Alloy 6351FT4T6 allup through 0.1240.125–0.749 all...... 32.0 [220]42.0 [290]42.0 [290] ... [...]... [...]... [...] 19.0 [130]37.0 [255]37.0 [255] 16810 14...9A The basis of establishment of mechanical property limits is given in Annex A1 of this specification.B To determine conformance to this specification, each value for ultimate tensile strength and for yield strength shall be rounded to the nearest 0.1 ksi [MPa] and each value for elongation to the nearest 0.5 %, both in accordance with the rounding method of Practice E29.C Elongation of full-section and sheet-type specimens is measured in 2 in.; of cut-out round specimens, in 4× specimen diameter.D For material of such dimensions that a standard test specimen cannot be taken, or for material thinner than 0.062 in., the test for elongation is not required.E Elongations in 50 mm apply for tube tested in full section and for sheet-type specimens machined from material up through 12.5 mm in thickness having parallel surfaces. Elongations in 5× diameter (5.65), where D and A are diameter and cross-sectional area of the specimen, respectively, apply to round test specimens machined from thickness over 6.30 mm. For tube of such dimensions that a standard test specimen cannot be taken, the test for elongation is not required.F These alloys are also produced in the F temper, for which no mechanical properties are specified.G Maximum tensile strength and minimum elongation apply to tubes having diameters from 1.000 in. to 4.500 in. and wall thickness from 0.050 in. to 0.169 in. only. Minimum elongation applies to tubes having diameters from 25.00 to 115.00 mm and wall thickness over 1.30 through 4.30 mm only.H Upon heat treatment, annealed (0 temper) material shall be capable of developing the mechanical properties applicable to T42 temper material, and upon solution and precipitation heat treatment shall be capable of developing the mechanical properties applicable to T62 temper material.I Yield strength is maximum [110 MPa] max.J For stress-relieved tempers (T4510, T4511, T6510 and T6511) characteristics and properties other than those specified may differ somewhat from the corresponding characteristics and properties of material in the basic temper.K Formerly designated T42 temper. Properly aged precipitation heat-treated 6063-T1 extruded products are designated T5.L While material in the T42 and T62 tempers is not available from the material producer, the properties are listed to indicate those which can usually be obtained by the user when the material is properly solution heat treated or solution and precipitation heat treated from the O (annealed) or F (as-fabricated) tempers. These properties apply when samples of material supplied in the O or F temper are heat treated by the producer to the T42 or T62 tempers to determine that the material will respond to proper thermal treatment. Properties attained by the user, however, may be lower than those listed if the material has been formed or otherwise cold or hot worked, particularly in the annealed temper, prior to solution heat treatment.M Maximum yield strength is 25.0 ksi [170 MPa].TABLE 3 Chemical CompositionA,B,CAlloy Composition, %Silicon Iron Copper Manganese Magnesium Chromium Zinc Vanadium Titanium Other ElementsD AluminumEach TotalE10603003 0.250.6 0.350.7 0.050.05–0.20 0.031.0–1.5 0.03... ...... 0.050.10 0.05... 0.03... 0.030.05 ...0.15 99.60 minFremainderAlclad 3003 3003 alloy clad inside or outside with 7072 alloy5083 0.40 0.40 0.10 0.40–1.0 4.0–4.9 0.05–0.25 0.25 ... 0.15 0.05 0.15 remainder5086 0.40 0.50 0.10 0.20–0.7 3.5–4.5 0.05–0.25 0.25 ... 0.15 0.05 0.15 remainder6061G 0.40–0.8 0.7 0.15–0.40 0.15 0.8–1.2 0.04–0.35 0.25 ... 0.15 0.05 0.15 remainder6063 0.20–0.6 0.35 0.10 0.10 0.45–0.9 0.10 0.10 ... 0.10 0.05 0.15 remainder6070 1.0–1.7 0.50 0.15–0.40 0.40–1.0 0.50–1.2 0.10 0.25 ... 0.15 0.05 0.15 remainder6351 0.7–1.3 0.50 0.10 0.40–0.8 0.40–0.8 ... 0.20 ... 0.20 0.05 0.15 remainder7072H 0.7 Si + Fe 0.10 0.10 0.10 ... 0.8–1.3 ... ... 0.05 0.15 remainderA Limits are in percent maximum unless shown as a range or stated otherwise.B Analysis shall be made for the elements for which limits are shown in this table.C For purposes of determining conformance to these limits, an observed value or a calculated value obtained from analysis shall be rounded to the nearest unit in the last right-hand place of figures used in expressing the specified limit, in accordance with the rounding method of Practice E29.D Others includes listed elements for which no specific limit is shown as well as unlisted metallic elements. The producer may analyze samples for trace elements not specified in the specification. However, such analysis is not required and may not cover all metallic Others elements. Should any analysis by the producer or the purchaser establish that an Others element exceeds the limit of Each or that the aggregate of several Others elements exceeds the limit of Total, the material shall be considered non-conforming.E Other ElementsTotal shall be the sum of unspecified metallic elements 0.010 % or more, rounded to the second decimal before determining the sum.F The aluminum content shall be calculated by subtracting from 100.00 % the sum of all metallic elements present in amounts of 0.010 % or more each, rounded to the second decimal before determining the sum.G In 1965 the requirements for Alloy 6062 were combined with those of Alloy 6061 by revision of the minimum chromium content from 0.15 to 0.04. For this reason, Alloy 6062 was cancelled.H Composition of cladding alloy as applied during the course of manufacture. The sample from finished tube shall not be required to conform to these limits.

定价: 0元 / 折扣价: 0

在线阅读 收 藏
CAN/CSA-B140.2.1-M90 (R2005) Oil Burners; Atomizing-Type 现行 发布日期 :  1970-01-01 实施日期 : 

1. Scope 1.1 This Standard applies to oil burners of the atomizing-type, irrespective of size, firing rate, or grade of fuel oil, that are designed primarily for installation in warm-air, hot-water, and steam-heating equipment. As classified in CSA

定价: 455元 / 折扣价: 387

在线阅读 收 藏
AS 2114-1977 Oil of Lavender, Australia 现行 发布日期 :  1970-01-01 实施日期 : 

定价: 78元 / 折扣价: 67 加购物车

在线阅读 收 藏
CAN/CSA-B140.4-04 Oil-Fired Warm Air Furnaces 现行 发布日期 :  1970-01-01 实施日期 : 

定价: 546元 / 折扣价: 465

在线阅读 收 藏

5.1 The presence and concentration of oil and grease in domestic and industrial wastewater is of concern to the public because of its deleterious aesthetic effect and its impact on aquatic life.5.2 Regulations and standards have been established that require monitoring of oil and grease in water and wastewater.1.1 This test method covers the determination of oil and grease and nonpolar material in water and wastewater by an infrared (IR) determination of dimer/trimer of chlorotrifluoroethylene (S-316)2 extractable substances from an acidified sample. Included in this estimation of oil and grease are any other compounds soluble in the solvent.1.2 This test method is applicable to measurement of the light fuel although loss of some light ends during extraction can be expected.1.3 This test method defines oil and grease in water and wastewater as that which is extractable in the test method and measured by IR absorption at 2930 cm-1 or 3.4 microns. Similarly, this test method defines nonpolar material in water and wastewater as that oil and grease which is not adsorbed by silica gel in the test method and measured by IR absorption at 2930 cm-1.1.4 This test method covers the range of 5 to 100 mg/L and may be extended to a lower or higher level by extraction of a larger or smaller sample volume collected separately.1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine (Guide D3856) the applicability of regulatory limitations prior to use.1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价: 590元 / 折扣价: 502 加购物车

在线阅读 收 藏
AS 2116-1977 Oil of Eucalyptus citriodora, Australia 现行 发布日期 :  1970-01-01 实施日期 : 

定价: 78元 / 折扣价: 67 加购物车

在线阅读 收 藏

5.1 The emission of mercury during crude oil refining is an environmental concern. The emission of mercury may also contaminate refined products and form amalgams with metals, such as aluminum.5.2 When representative test portions are analyzed according to this procedure, the total mercury is representative of concentrations in the sample.1.1 This test method covers the procedure to determine the total mercury content in a sample of crude oil. This test method can be used for total mercury determination in natural and processed liquid and oil products (gasoline, naphtha, etc.).1.2 This test method may be applied to samples containing between 5.0 ng/mL to 350 ng/mL of mercury. The results may be converted to mass basis.1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.4 This work has been published in “Determination of Mercury in Crude Oil by Atomic Spectroscopy.”21.5 WARNING—Mercury has been designated by many regulatory agencies as a hazardous substance that can cause serious medical issues. Mercury, or its vapor, has been demonstrated to be hazardous to health and corrosive to materials. Use Caution when handling mercury and mercury-containing products. See the applicable product Safety Data Sheet (SDS) for additional information. The potential exists that selling mercury or mercury-containing products, or both, is prohibited by local or national law. Users must determine legality of sales in their location.1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价: 590元 / 折扣价: 502 加购物车

在线阅读 收 藏

5.1 The emission of mercury during crude oil refining is an environmental concern. The emission of mercury may also contaminate refined products and form amalgams with metals, such as aluminum.5.2 When representative test portions are analyzed according to this procedure, the total mercury is representative of concentrations in the sample.1.1 This test method covers the procedures to determine the total mercury content in a sample of crude oil.1.2 The test method may be applied to crude oil samples containing between 5 ng/mL to 400 ng/mL of mercury. The results may be converted to mass basis, and reported as ng/g of mercury.1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.4 This work has been published in “Determination of Mercury in Crude Oil by Atomic Spectroscopy.”21.5 WARNING—Mercury has been designated by many regulatory agencies as a hazardous substance that can cause serious medical issues. Mercury, or its vapor, has been demonstrated to be hazardous to health and corrosive to materials. Use Caution when handling mercury and mercury-containing products. See the applicable product Safety Data Sheet (SDS) for additional information. The potential exists that selling mercury or mercury-containing products, or both, is prohibited by local or national law. Users must determine legality of sales in their location.1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价: 590元 / 折扣价: 502 加购物车

在线阅读 收 藏

1.1 This guide covers recommendations for the use of chemical dispersants to assist in the control of oil spills. This guide is written with the goal of minimizing the environmental impacts of oil spills; this goal is the basis upon which recommendations are made. Aesthetic and socioeconomic factors are not considered; although, these and other factors are often important in spill response. 1.2 Each on-scene coordinator has available several means of control or cleanup of spilled oil. In this guide, use of chemical dispersants is not to be considered as a last resort after other methods have failed. Chemical dispersants are to be given equal consideration with other spill countermeasures. 1.3 This is a general guide only assuming the oil to be dispersable and the dispersant to be effective, available, applied correctly and in compliance with relevant government regulations. Oil, as used in this guide, includes crude oils and fuel oils (No. 1 through No. 6). Differences between individual dispersants or between different oils or products are not considered. 1.4 This guide covers one type of habitat, sandy beaches or marshes. Other guides, similar to this one, cover habitats such as rocky shores and marshes. The use of dispersants is considered primarily to protect such habitats from impact (or minimize impacts) and also to clean them after the spill takes place. 1.5 This guide applies to marine and estuarine environments, but not to freshwater environments. 1.6 In making dispersant-use decisions, appropriate government authorities should be consulted as required by law. 1.7 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

定价: 0元 / 折扣价: 0

在线阅读 收 藏

Update #2 was published as notification that this is now a National Standard of Canada This PDF includes Update #2 1. Scope 1.1 This Standard specifies the method for determining the energy factor for oil-fired storage tank water heaters. 1.2

定价: 455元 / 折扣价: 387

在线阅读 收 藏

3.1 This guide provides techniques for obtaining representative samples of oil and water mixtures. This information is necessary in the calculation of oil recovery efficiency and oil recovery rates for oil collection devices.3.2 Sampling Stationary Mixtures—When recovered oil/water mixtures are contained within a holding tank and the relative oil content of the recovered fluid is needed, the sampling technique is somewhat dependent on the container. Two techniques are outlined in this guide. If the container has a flat bottom with straight sides perpendicular to the base (or nearly so), either stationary technique can be implemented, with the stratified sampling method preferred. If the container is irregular in either the horizontal or vertical cross section, the mixing method is preferred.3.3 Sampling Flowing Mixtures—To sample flowing mixtures containing both oil and water, turbulence is induced, to create a homogenous mixture while sampling. The oil content in the sample taken from the flowing stream can then be used to quantify the performance-rating criterion (see Procedure Section of Test Method D1796).1.1 This guide is intended for sampling flowing or stationary oil/water mixtures. It is intended for use with oil spill recovery devices either in testing or in documentation of field performance.1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价: 515元 / 折扣价: 438 加购物车

在线阅读 收 藏

This specification covers the requirements and test methods for outside diameter controlled, pressure rated, black metric-sized and IPS-sized crosslinked polyethylene (PEX) pipe, fittings and joints intended for oil and gas producing applications. It presents the criteria for materials made in pipe dimension ratios ranging from 6 to 17, along with workmanship, burst pressure, hydrostatic sustained pressure, bent-pipe hydrostatic pressure, stabilizer functionality, degree of crosslinking, and chemical resistance. It also includes guidelines for pipe and fittings markings.1.1 This specification covers outside diameter controlled, pressure rated, metric-sized and inch-sized black or yellow crosslinked polyethylene (PEX) pipe made in pipe dimension ratios ranging from 6 to 17. Included are requirements and test methods for material, workmanship, dimensions, burst pressure, hydrostatic sustained pressure, stabilizer functionality, bent-pipe hydrostatic pressure, degree of crosslinking, chemical resistance, and minimum operating temperature. Requirements for pipe markings are also given. The pipe covered by this specification is intended for pressure or non-pressure oil and gas producing applications, such as conveying oil, dry or wet gas, gas gathering, multiphase fluids, and non-potable oilfield water. This specification does not cover piping for gas distribution applications.1.2 This specification also includes requirements for joints made between PEX pipe and polyethylene electrofusion fittings (specified in Specifications F1055 or F3373). Fittings to be used with PEX pipe manufactured to this Specification are in Specification F2829/F2829M. Installation considerations are in Appendix X3.1.3 The text of this specification references notes, footnotes, and appendixes, which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the specification.1.4 Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.NOTE 1: Metric sized (SI units) pipe should only be joined with corresponding metric sized fittings, and inch sized pipe should only be joined with corresponding inch sized fittings. Inch sized fittings should not be used for metric sized pipe, and metric sized fittings should not be used for IPS inch sized pipe.1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价: 590元 / 折扣价: 502 加购物车

在线阅读 收 藏

3.1 The iodine value of a fatty acid product is a measure of the unsaturated fatty acid content of that product and consequently a measure of the ease of oxidation or drying capacity of that fatty acid product.3.2 This test method measures the unsaturation as iodine value by addition of an iodine/chlorine reagent. The amount of reagent absorbed is determined by back titrating the excess reagent and comparing it to a blank determination.3.3 In samples containing conjugated double bonds, the iodine value obtained is empirical since the reagent does not react stoichiometrically with conjugated unsaturation. Where no conjugation is present, the iodine value obtained is a measure of the total unsaturation. By using proper specimen weights, the empirical values obtained are useful for comparative purposes.3.4 This test method was developed in order to replace the hazardous solvent, carbon tetrachloride, used in Test Method D1959 with the less hazardous and more available solvents, iso-octane and cyclohexane. As data on the satisfactory use of other solvents becomes available, this test method will be amended to include those solvents.3.5 This test method should have applicability to fatty acids and oils other than tall oil fatty acid but that possibility has not been investigated.1.1 This test method covers the Wijs procedure for determination of unsaturation (iodine value) of tall oil fatty acids.1.2 Iodine value is a measure of the unsaturation of oils and fatty acids and is expressed in terms of the number of centigrams of iodine per gram of sample (weight percent of absorbed iodine).1.3 When this test method is used to determine the iodine value of fatty acids having conjugated systems, the result is not a measure of total unsaturated, but rather is an empirical value that affords a comparison of unsaturation. Total unsaturation of conjugated systems may be measured in accordance with Test Method D1541.1.4 The test method described here is not reliable for tall oil fatty acids containing an appreciable quantity of rosin.1.5 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价: 515元 / 折扣价: 438 加购物车

在线阅读 收 藏

5.1 When a lubricating grease separates oil, the remaining composition increases in consistency. This can affect the ability of the product to function as designed.5.2 It has been found that the results of this test correlate directly with the oil separation that occurs in 35 lb pails of grease during storage.5.3 This test method is not intended to predict oil separation tendencies of the grease under dynamic conditions.1.1 This test method covers the determination of the tendency of a lubricating grease to separate oil during storage in both normally filled and partially filled containers.1.2 This test method is not suitable for greases softer than NLGI No. 1 grade.FIG. 1 Pressure Bleeding Test Cell A1.3 The values stated in SI units are to be regarded as standard, except for the dimensions in Fig. 2 and Fig. 5, where inch-pound units are standard.FIG. 2 Detailed Drawing of Pressure Bleeding Test Cell ANOTE 1: All dimensions are in millimeters (inches).NOTE 2: Tolerances are ±0.51 mm (0.02 in.) for 2 place decimals, unless otherwise specified.NOTE 3: Tolerances are ±0.127 mm (0.005 in.) for 3 place decimals, unless otherwise specified.FIG. 3 Pressure Bleeding Test Cell BFIG. 4 Pressure Bleeding Test Cell CFIG. 5 Detailed Drawing of Pressure Bleeding Test Cell C—Strainer AssemblyNOTE 1: All dimensions are in millimeters (inches).NOTE 2: Tolerances are ±0.51 mm (0.02 in.) for 2 place decimals, unless otherwise specified.NOTE 3: Tolerances are ±0.127 mm (0.005 in.) for 3 place decimals, unless otherwise specified.1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For a specific hazard statement, see 7.1.1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价: 590元 / 折扣价: 502 加购物车

在线阅读 收 藏

1.1 This practice covers the chemical analysis of the usual white linseed oil paints. The methods included are listed in Table 1.1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

定价: 0元 / 折扣价: 0

在线阅读 收 藏
247 条记录,每页 15 条,当前第 2 / 17 页 第一页 | 上一页 | 下一页 | 最末页  |     转到第   页