Titration Standards

4.1 This test method is based on the cold oxidation of the glycerol by sodium metaperiodate in a strong acidic medium. Formaldehyde and formic acid are produced in this reaction and the latter is used to measure the glycerol content by titration with standard sodium hydroxide solution, to a...

1.1 This test method covers the determination of acidity as acetic acid in ethanol and ethanol solutions. This test method may be applied to ethanol samples containing very little water (dehydrated alcohols) to solutions with significant water (low proof ethanol samples). The solutions include...

5.1 Volatile solvents are used in a variety of chemical processes which may be affected by water. Therefore, this test method provides a test procedure for assessing compliance with a specification.

This specification covers virgin poly(L-lactic acid) resin (PLLA resin) intended for use in surgical implants. This specification does not cover stereoisomeric compositions based on various D, L, or DL copolymer ratios. This specification addresses material characteristics of virgin poly(L-lactic...

4.1 This test method permits the determination of very low levels of chloride ion in engine coolants containing the common corrosion inhibitor, mercaptobenzothiazole, or related mercaptans, which would normally interfere with the titration by also forming insoluble silver salts with silver...

1.1 This test method covers the determination of residual chlorine in water by direct amperometric titration. 1.2 Within the constraints specified in Section 6, this test method is not subject to commonly encountered interferences and is applicable to most waters. Some waters, however, can...

3.1 This test method is intended for the determination of organically combined sulfuric anhydride in sulfated oils.

1.1 These test methods cover the determination of calcium and magnesium in water by complexometric titration and atomic absorption spectrometric procedures. Two test methods are included, as follows: Sections Test Method A-Complexometric Titration 7 - 15 Test Method B-Atomic...

1.1 These test methods cover the determination of total iron in iron ores, concentrates, and agglomerates in the concentration range 30 % to 95 % iron. 1.2 The test methods in this standard are contained in the sections indicated as follows: Test Method A- Iron by the Hydrogen Sulfide Reduction...

5.1 This test method is useful as an internal quality control tool, and for use in development or research work on industrial aromatic hydrocarbons and related materials. This test method gives a broad indication of olefinic content. It will not differentiate between the types of aliphatic...

5.1 This test method is suitable for setting specifications, for use as an internal quality control tool, and for use in development or research work on industrial aromatic hydrocarbons and related material. This test method gives a broad indication of olefinic content. It does not differentiate...

1.1 This test method covers the determination of the acid material, which disassociates in distilled water, that is present in sulfur. The acidity is determined by an electrometric or visual titration. 1.2 The values stated in SI units are to be regarded as the standard. The values given in...

1.1 This test method covers the determination of assay of benzothiazyl disulfide (MBTS). It is based on a titration of free iodine liberated upon reduction of MBTS, with potassium iodide (KI) in acid medium. 1.2 The assay is determined as mass percent. 1.3 Free 2-mercaptobenzothiazole (MBT)...

1.1 This test method covers the determination of the nitrogen content of polymerized 2,2,4-trimethyl-1,2-dihydroquinoline (TMQ). It is based on a potentiometric titration of an acetone solution of TMQ with perchloric acid in acetic acid. 1.2 The values stated in SI units are to be regarded...

1.1 This test method covers a procedure for the determination of water in 2-mercaptobenzothiazole sulfenamide accelerators by a Karl Fischer coulometric titration. 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...

4.1 Any residual fatty acid and esters (FA&E) should be present only at very low levels in purified glycerine. 4.2 This procedure requires the addition of a measured volume of sodium hydroxide, in excess of the amount actually needed to react with FA&E in the glycerine sample. After boiling, the...

1.1 This test method covers a procedure for determining the percent hydroxyl on cellulose esters by potentiometric titration. The typical range of percent hydroxyl measured is 0.7 to 10.0 %. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are...

4.1 MBT is commonly used in rubber compounding as a curing accelerator for rubber and latex products. The determination of MBT in cured rubber is important to assess the risk of a release of this hazardous substance when rubber is in prolonged contact with human skin or mucous membranes. 4.2...

5.1 This laboratory test method measures thermal combustion properties of materials (1-9).4 5.2 The test uses controlled thermal and thermal-oxidative decomposition of specimens and thermal oxidation of the specimen gases as they are released from the specimen to simulate the condensed and gas...

1.1 This test method covers the determination of acidic or basic constituents (Note 1) in petroleum products2 and lubricants soluble or nearly soluble in mixtures of toluene and isopropyl alcohol. It is applicable for the determination of acids or bases whose dissociation constants in water are...