5.1 This test method is used for determination of the carbon content of water from a variety of natural, domestic, and industrial sources. In its most common form, this test method is used to measure organic carbon as a means of monitoring organic pollutants in industrial wastewater. These measurements are also used in monitoring waste treatment processes.5.2 The relationship of TOC to other water quality parameters such as chemical oxygen demand (COD) and total oxygen demand (TOD) is described in the literature (5).1.1 This test method covers the catalyzed hydroxyl radical oxidation system for the in-stream, online (Guide D5173) or laboratory analysis of total organic carbon, total carbon and total inorganic carbon in drinking water, wastewater, industrial process water, and effluent water. It is applicable to both dissolved and suspended materials. Suspended materials and particulates up to 2 mm in diameter can be analyzed.1.2 This test method allows for determination of TOC ≥ 1 mg/L, TC ≥ 1 mg/L, and TIC ≥ 1 mg/L. The lower and upper working ranges are restricted by instrument-dependent conditions (for example, sample volume, amount of each reactant) and can be adjusted for a wider range.1.3 This test method can be applied for the determination of total carbon (TC) and total inorganic carbon (TIC). Volatile or purgeable organic carbon (VOC, POC) can be determined separately by this test method (see Annex A1).1.4 This test method allows the measurement of organic and inorganic carbon concentration samples, and samples containing dissolved chlorides up to seawater chloride concentrations.1.5 The chemical oxidation process, applied in this test method, takes place at ambient pressure and temperature by using hydroxyl radicals. The advantage of catalytic hydroxyl radical oxidation is that it is free from seawater salinity interference.1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.7 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 specific hazard statements, see Section 9.1.8 ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.1.9 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 元 加购物车

This specification covers the material, design, and performance requirements pertinent to the construction of spray-type, stationary rack commercial dishwashing machines that are manually fed yet automatically controlled to uniformly wash, rinse, and sanitize eating and drinking utensils. Representative production models of the washers shall pass performance, operation, leakage, and energy and productivity tests, and should function satisfactorily as specified. Certification, product marking, and packaging are also considered.1.1 This specification covers manually fed, spray-type, stationary rack, automatically controlled, hot water and chemical sanitizing commercial dishwashing machines.1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.1.3 The following precautionary caveat pertains only to the test methods portion, Section 12, of this specification: 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： 590元 / 折扣价： 502 元 加购物车

This specification covers the materials and the test methods for use in chemical admixtures to be added to hydraulic-cement concrete mixtures in the field. The seven types of admixtures are indicated as follows: Type A—water reducing; Type B—retarding; Type C—accelerating; Type D—water reducing and retarding; Type E—water reducing and accelerating; Type F—water reducing, high range; and Type G—water reducing, high range, and retarding. The materials used in the concrete mixtures shall include Type I or Type II cement, pozzolan, fine and coarse aggregates, and air-entraining admixture. Samples of freshly mixed concrete from at least three separate batches for each condition of concrete shall be tested in accordance with the slump, air content, time of setting, and water content tests. Physical properties retesting shall consist of uniformity and equivalence tests using infrared analysis which is intended to compare qualitatively the composition of different samples, residue by oven drying which shall be either a forced circulation type or one with provision for free access of air, and specific gravity determination using hydrometers. Test specimens of the hardened concrete shall be prepared in accordance to compressive strength, flexural strength, resistance to freezing and thawing, and length change.1.1 This specification covers materials for use as chemical admixtures to be added to hydraulic-cement concrete mixtures for the purpose or purposes indicated for the eight types as follows:1.1.1 Type A—Water-reducing admixtures,1.1.2 Type B—Retarding admixtures,1.1.3 Type C—Accelerating admixtures,1.1.4 Type D—Water-reducing and retarding admixtures,1.1.5 Type E—Water-reducing and accelerating admixtures,1.1.6 Type F—Water-reducing, high range admixtures,1.1.7 Type G—Water-reducing, high range, and retarding admixtures, and1.1.8 Type S—Specific performance admixtures.1.2 Unless specified otherwise by the purchaser, test specimens for qualifying an admixture shall be made using concreting materials as described in 11.1 – 11.3.NOTE 1: As discussed in Appendix X2, it is recommended that, whenever practicable, supplementary tests be made by the purchaser using the cement, pozzolan, aggregates, air-entraining admixture, and the mixture proportions, batching sequence, and other physical conditions proposed for the specific work because the specific effects produced by chemical admixtures may vary with the properties and proportions of the other ingredients of the concrete. For example, Types F and G admixtures may exhibit much higher water reduction in concrete mixtures having higher cement contents than that listed in 12.1.1.NOTE 2: The purchaser should verify that the admixture supplied for use in the work is equivalent in composition to the admixture subjected to test under this specification (see Section 6, Uniformity and Equivalence).NOTE 3: Admixtures that contain sufficient amounts of chloride may accelerate corrosion of steel reinforcement. Compliance with the requirements of this specification does not constitute assurance of acceptability of the admixture for use in reinforced concrete.1.3 This specification provides for three levels of testing.1.3.1 Level 1—During the initial approval stage, proof of compliance with the performance requirements defined in Table 1 demonstrates that the admixture meets the requirements of this specification. Proof of compliance shall be based on comparisons of the average test results from the batches of test concrete and the average test results from the batches of reference concrete. Admixtures (except for Types B, C, E, and S) shall qualify for provisional compliance if the time of setting, length change, and durability factor meet the physical requirements and any of the alternative compressive strength requirements shown in parentheses in Table 1 are met through the date of provisional acceptance (see Note 4). If subsequent test results at six months or one year fail to meet the requirement of at least 100 % of reference strength, the provisional compliance of the admixture to this standard is withdrawn and all users of the admixture shall be notified immediately. Uniformity and equivalence tests of Section 6 shall be carried out to provide results against which later comparisons shall be made.NOTE 4: Allowing for provisional compliance while retaining longer term compressive strength requirements promotes more rapid qualification of new materials, but also provides assurance that new admixture technologies will not exhibit unexpected longer term performance. The alternative compressive strength requirements in Table 1 are based on statistical analysis of 103 Specification C494/C494M evaluation tests. The alternative requirements shown in parentheses correspond to a 99 % probability of passing strength requirements at subsequent test ages,2 if any one of the requirements is met. There is no requirement that all be met.1.3.2 Level 2—Limited retesting is described in 5.2 – 5.2.2. Proof of compliance with the requirements of Table 1 demonstrates continued conformity of the admixture with the requirements of the specification.1.3.3 Level 3—For acceptance of a lot or for measuring uniformity within or between lots, if specified by the purchaser, the uniformity and equivalence tests of Section 6 shall be used.1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. Some values have only SI units because the inch-pound equivalents are not used in practice.1.5 The text of this standard refers to notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.1.6 The following precautionary caveat pertains only to test method Sections 11 – 18 of this Specification: 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. (Warning—Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to exposed skin and tissue upon prolonged exposure.3)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： 646元 / 折扣价： 550 元 加购物车

3.1 These test methods are suitable for determining if impurities are present and establishing that the required pigments are present. These test methods may be used for manufacturing quality control.1.1 These test methods cover procedures for the chemical analysis of blue pigments known commercially as iron blue, copper phthalocyanine blue, and ultramarine blue.1.2 The analytical procedures appear in the following order:  Sections IRON BLUE PIGMENTS Identification  6Moisture by the Brabender Moisture Tester  7 and 8Moisture by Toluene Distillation  9Water-Soluble Matter by Extraction 10Water-Soluble Salts by Electrical Conductivity 11Detection of Acid-Insoluble Extenders 12 and 13Detection of Acid-Soluble Extenders 14 to 17Detection of Organic Colors and Lakes 18 COPPER PHTHALOCYANINE BLUE PIGMENTS Identification 19Moisture and Other Volatile Matter 20Detection of Basic Dye Derivatives 21Detection of Other Organic Coloring Matter 22Detection of Ultramarine Blue 23Detection of Iron Blue 24 ULTRAMARINE BLUE Identification 25Moisture and Other Volatile Matter 26Water-Soluble Matter 27Detection of Basic Dye Derivatives 28Detection of Other Organic Coloring Matter 291.3 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 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.1.5 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 元 加购物车

AbstractThese test methods cover the sampling and chemical analysis of paste, powder, or liquid detergent alkylbenzene sulfonates. Reagent grade chemicals shall be used in all tests. The distillation method shall be preferred for moisture testing. Water by the Karl Fischer titration method shall be used when the amount of moisture is low. Total matter insoluble in alcohol, neutral oil content, chlorides calculated as sodium chloride, and pH shall also be tested.1.1 These test methods cover the sampling and chemical analysis of paste, powder, or liquid detergent alkylbenzene sulfonates.1.2 The procedures for sampling and analysis appear in the following order:  Sections   Sampling:   Powders and Flakes Packed in Cans or Cartons 3 Powders and Flakes in Bulk 4 Liquids 6 Pastes 7Hazards 8Preparation of Sample 9Moisture:   Distillation Method 11 – 14 Karl Fischer Method 15 – 20Total Matter Insoluble in Alcohol 21 – 23Neutral Oil 24 – 27Chlorides Calculated as Sodium Chloride (NaCl) 28 – 31pH 321.3 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 and health practices and determine the applicability of regulatory limitations prior to use. For a specific hazards statement, see Section 8.

定价： 0元 / 折扣价： 0 元

3.1 The inspection, testing, and repair of lateral connections for sanitary sewers are regular practice necessary for the maintenance and optimal performance of the system. It is important to identify methods that use the most current compounds and technology to ensure the reduction of infiltration and exfiltration. It is important to minimize disruption to traffic and lessen the environmental impacts for both the municipal and private owners.3.2 This practice serves as a means to inspect, test, and seal sewer lateral connections and a predetermined portion of the lateral lines from the mainline sewer, having selected the appropriate chemical grouts using the lateral packer method. Television (or optical) inspection and sewer lateral connection testing are used to assess the condition and document any repairs.3.3 This practice should not be used where mainline and lateral connections are found with longitudinally cracked pipe, structurally unsound pipe, or flattened or out of round pipe.1.1 This practice covers the procedures for testing and sealing sewer lateral connections and lateral lines from the mainline sewer with appropriate chemical grouts using the lateral packer method. Chemical grouting is used to stop infiltration of ground water and exfiltration of sewage in gravity flow sewer systems that are structurally sound.1.2 This practice applies to mainline sewer diameters of 6 in. to 24 in. with 4 in., 5 in., or 6 in. diameter laterals. Larger diameter pipes with lateral connections and lines can be grouted with special packers or man-entry methods. The mainline and lateral pipes must be structurally adequate to create an effective seal.1.3 Worker safety training should include reviewing the biohazards and gases from sewage, confined spaces, pumping equipment, and related apparatus. Additional safety considerations including proper handling, mixing, and transporting of chemical grouts should be provided by the chemical grout manufacturer or supplier, or both. Their safe operating practices and procedures should describe in detail appropriate personal protective equipment (PPE) for the various grouting operations. Operations covered should include the proper storage, transportation, mixing, and disposal of chemical grouts, additives, and their associated containers.1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.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 to 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 元 加购物车

3.1 This guide is primarily intended to assist decision-makers and spill-responders in contingency planning, spill response, and training.3.2 This guide is not specific to site or type of oil.1.1 This guide covers the use of chemical cleaning agents on oiled shorelines. This guide is not applicable to other chemical agents nor to the use of such products in open waters.1.2 The purpose of this guide is to provide information that will enable spill responders to decide whether to use chemical shoreline cleaning agents as part of the oil spill cleanup response.1.3 This is a general guide only. It is assumed that conditions at the spill site have been assessed and that these conditions are suitable for the use of cleaning agents. It is assumed that permission has been obtained to use the chemical agents. Variations in the behavior of different types of oil are not dealt with in this guide and may change some of the parameters noted herein.1.4 This guide covers two different types of shoreline cleaners: those that disperse oil into the water and those that disperse little oil into the water under low energy levels. The selection criteria for these two types can differ widely. This guide does not cover dispersants.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 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 元 加购物车

AbstractThese test methods cover the sampling and chemical analysis of paste, powder, or liquid detergent fatty alkyl sulfates. The different procedure for sampling and chemical analysis of past, powder, or liquid detergent are presented and discussed in details. Distillation test, titration test, and gravimetric test shall be performed to meet the requirements prescribed. The calculations methods for chlorides as sodium chloride are presented in details.1.1 These test methods cover the sampling and chemical analysis of paste, powder, or liquid detergent fatty alkyl sulfates.1.2 The procedures for sampling and analysis appear in the following order:  SectionsSampling:   Powders and Flakes Packed in Cans or Cartons  4 Powders and Flakes in Bulk  5 Liquids  6 Pastes  7 Preparation of Sample  8 Moisture by the Distillation Test Method 11 – 14 pH 15 Alkalinity 16 – 19 Alcohol-Soluble Matter 20 – 22 Alcohol-Insoluble Matter 23 and 24 Unsulfated Material 25 – 28 Combined Alcohols 29 – 32Ester SO3:   Method A. Titration Test Method 36 and 37  SectionsEster SO3:   Method B. Gravimetric Test Method 38 and 39 Sodium Sulfate 40 – 43 Chlorides Calculated as Sodium Chloride (NaCl) 44 – 471.3 The values stated in either inch-pound or SI units are to be regarded separately as the standard. The values given in parentheses are for information only.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. Material Safety Data Sheets are available for reagents and materials. Review them for hazards prior to usage.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 元 加购物车

These test methods for the chemical analysis of zinc-nickel alloy coating on sheet steel are primarily intended as referee methods to test such materials for compliance with compositional specifications such as found in Specification A918, particularly those under the jurisdiction of ASTM Committee A05 on Metallic-Coated Iron and Steel Products. It is assumed that all who use these test methods will be trained analysts capable of performing common laboratory procedures skillfully and safely. It is expected that work will be performed in a properly equipped laboratory under appropriate quality control practices such as those described in Guide E882.These test methods must be applied twice, once to each side of the specimen if coating mass and composition are required for both sides of a coated sheet. Two separate specimens are required for this purpose.1.1 These test methods cover independently the chemical analysis of each surface of zinc-nickel alloy electrolytically coated on steel sheet. The coatings have chemical compositions within the following limits:Analyte Concentration RangeCoating mass 0.0 to 80 g/m2Nickel 7.0 to 17.0 %1.2 These test methods are in the following sections: SectionsCoating mass, by the Weigh-Strip-Weigh Method(20.0 to 45.0 g/m2) 10-20Nickel by the Atomic Absorption Method (11.0 to 13.5 %of Coating mass Ranging from 20 to 45 g/m2) 21-311.3 The values stated in SI units are to be regarded as standard. In some cases, exceptions allowed in Practice are also used.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 and health practices and determine the applicability of regulatory limitations prior to use.

定价： 0元 / 折扣价： 0 元

4.1 Aluminum oxide pellets are used in a reactor core as filler or spacers within fuel, burnable poison, or control rods. In order to be suitable for this purpose, the material must meet certain criteria for impurity content. These test methods are designed to show whether or not a given material meets the specifications for these items as described in Specification C785.4.1.1 Impurity content is determined to ensure that the maximum concentration limit of certain impurity elements is not exceeded.4.2 Aluminum oxide-boron carbide composite pellets are used in a reactor core as a component in neutron absorber rods. In order to be suitable for this purpose, the material must meet certain criteria for boron content, isotopic composition, and impurity content as described in Specification C784.4.2.1 The material is assayed for boron to determine whether the boron content is as specified by the purchaser.4.2.2 Determination of the isotopic content of the boron is made to establish whether the 10B concentration is in compliance with the purchaser's specifications.4.2.3 Impurity content is determined to ensure that the maximum concentration limit of certain impurity elements is not exceeded.1.1 These test methods cover procedures for the chemical, mass spectrometric, and spectrochemical analysis of nuclear-grade aluminum oxide and aluminum oxide-boron carbide composite pellets to determine compliance with specifications.1.2 The analytical procedures appear in the following order:  Sections Boron by Titrimetry and ICP OES  8 to 17Separation of Boron for Mass Spectrometry 18 to 23Isotopic Composition by Mass Spectrometry 24 to 27Separation of Halides by Pyrohydrolysis 28 to 31Chloride and Fluoride by Ion-Selective Electrode 32 to 34Chloride, Bromide, and Iodide by Amperometric Microtitrimetry 35 to 37Trace Elements by Emission Spectroscopy 38 to 50Keywords 511.3 The values stated in SI units are to be regarded as the standard.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 specific precautionary statements, see Section 6.)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 元 加购物车

This and other COD test methods are used to chemically determine the quantity of oxygen that certain impurities in water will consume. Typically this measurement is used to monitor and control oxygen-consuming pollutants, both inorganic and organic, in domestic and industrial wastewater applications.For samples from a specific source, COD can be related empirically to BOD, organic carbon, or organic matter. The COD value is useful for monitoring and process control after this correlation has been established.1.1 This test method covers the colorimetric determination of the quantity of oxygen that certain impurities in water will consume, based on the reduction of a manganese III solution under specified conditions. This standard method does not use characteristic heavy metal reagents, thus eliminating environmental and disposal concerns apparent in other methods.1.2 This test method determines chemical oxygen demand colorimetrically using manganese III to obtain a visible color intensity inversely proportional to the chemical oxygen demand of the sample. Analytical test kits conforming to these methods are available commercially in ranges from 80 to 1,000 mg/L (ppm) chemical oxygen demand. It is the user's responsibility to ensure the validity of these test methods for their specific samples and matrices.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 and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Sections 9 and 12.

定价： 0元 / 折扣价： 0 元

3.1 Soap and soap products are widely used. These test methods are suitable for setting specifications and performing quality control on soap and soap products.1.1 These test methods cover the sampling and chemical analysis of cake, powdered, flake, liquid, and paste soaps, and soap products.1.2 The test methods appear in the following order:Sampling  SectionGeneral Requirements  4Cake Soaps, Flake and Powdered Soap Products when Packed in Cans or Cartons  5Flake and Powdered Soap Products when in Bulk  6Liquid Soap  7Paste Soap Products  8Preparation of Samples  9Test Methods for Chemical AnalysisSafety Precautions 10Purity of Reagents 11Duplicate Tests 12Moisture: Choice of Method 13 Method A—Matter Volatile at 105°C (Oven Method) 14 Method B—Distillation Method 15 – 18Total Matter Insoluble in Alcohol 19 and 20Free Alkali or Free Acid 21Matter Insoluble in Water 22Total Alkalinity of Matter Insoluble in Alcohol, Alkaline Salts 23Combined Alkali, Total Anhydrous Soap 24 and 25Combined Sodium and Potassium Oxides 26 – 29Free Alkali and Potassium Carbonate in Potash Paste Soaps 30 – 32Unsaponified plus Unsaponifiable Matter 33 – 35Unsaponifiable Matter 36 – 38Unsaponified Matter 39Rosin (McNicoll Method) 40 – 43Preparation of Total Fatty Matter, Fatty and Rosin Acids, and Unsaponified Matter 44 and 45Titer Test 46 and 47Acid Number of Fatty Acids 48 and 49Iodine Number (Wijs Method) 50 – 52Chlorides 53 – 55Borax 56 – 58Silica Present as Alkaline Silicates 59 and 60Carbon Dioxide (Carbonates):   Train-Absorption Method 61 – 64 Evolution-Volumetric Method 65 – 68Phosphates 69 – 76Tetrasodium Pyrophosphate 77 – 79Sulfates 80 and 81Glycerine, Sugars, and Starch:   Glycerine in the Absence of Sugars 82 – 84 Glycerine in the Presence of Sugars 85 and 86 Starch 87 and 88 Sugars 89 and 90 Volatile Hydrocarbons 91 – 95 Copper (Trace Amounts)  96 – 102 Precision and Bias 1031.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.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 and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 10. Material Safety Data Sheets are available for reagents and materials. Review them for hazards prior to usage.

定价： 0元 / 折扣价： 0 元

5.1 Old coatings, such as paint or related coatings, may have to be removed from a surface before successful recoating can occur. This practice can be used to test the coatings removal efficiency of products designed for such use.1.1 The practice evaluates the effectiveness of coatings removers used on clear or pigmented coatings as applied to wood and metal.1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.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 元 加购物车

These test methods for the chemical analysis of metals and alloys are primarily intended to test such materials for compliance with compositional specifications. It is assumed that all who use these test methods will be trained analysts capable of performing common laboratory procedures skillfully and safely. It is expected that work will be performed in a properly equipped laboratory.1.1 These test methods cover procedures for the chemical analysis of copper-beryllium alloys having chemical compositions within the following limits:ElementConcentrationRange,%Copper97 to 98Beryllium0.4 to 2.05Nickel0.0 to 0.30Cobalt0.0 to 0.3Iron0.0 to 0.301.2 The analytical procedures appear in the following order:SectionsCopper by the Electrolytic MethodBeryllium:Phosphate Gravimetric MethodAluminon (Photometric) MethodNickel by the Dimethylglyoxime (Photometric) MethodCobalt by the Nitroso-R-Salt (Photometric) MethodIron by the Thiocyanate (Photometric) Method1.3 This test method covers the determination of beryllium in concentrations from 0.1 to 3.0 %.

定价： 0元 / 折扣价： 0 元

3.1 The specific chemical(s) selected is at the discretion of the customer and vendor.3.2 Variations in results may be expected due to different rates of chemical evaporation. The use of a watchglass with sealed edges is intended to curtail or eliminate evaporation of the chemical.1.1 This test method covers the testing of any surface that may be exposed to liquid chemical(s).1.2 This test method is not designed for immersion testing conditions or material edge attack.1.3 This test method is designed for evaluation of visual changes. In certain instances physical (non-visual) changes may occur and functional testing may be appropriate.1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.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 and health practices and determine the applicability of regulatory limitations prior to use.

定价： 0元 / 折扣价： 0 元