71.080.90;71.080.15 标准查询与下载

ISO 1897-11:1983 工业用苯酚、邻甲酚、间甲酚、对甲酚、甲苯基酸和二甲苯酚 试验方法 第11部分:结晶点的测定(甲苯基酸和二甲苯酚除外)

The test may be carried out on products as received or on a dried sample. The method specified in ISO 2208 shall be applied for drying. The principle of the method consists in cooling the liquid or liquefied test portion and observation of the temperature during crystallization under defined conditions. A simplified crystallization point apparatus is given in the figure. It takes into account the properties of these products.

Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part 11 : Determination of crystallizing point (Excluding cresylic acid and xylenols)

ISO 1897-12:1983 工业用苯酚、邻甲酚、间甲酚、对甲酚、甲苯基酸和二甲苯酚 试验方法 第12部分:蒸馏特性的测定(只用于甲苯基酸和二甲苯酚)

The method is applicable to products having high cresol contents. The principle consists in distillation of a test portion inder carefully defined conditions. Either determination of the temperatures corresponding to the condensate volumes defined or determination of the volume condensate when the thermometer indicates each of the distillaton temperatures (i.e. plotting temperature as a function of volume or plotting volume as a function of temperature).

Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part 12 : Determination of distillation characteristics (Cresylic acid and xylenols only)

ISO 1897-13:1983 工业用苯酚、邻甲酚、间甲酚、对甲酚、甲苯基酸和二甲苯酚 试验方法 第13部分:蒸馏后残渣的测定(只用于甲苯基酸和二甲苯酚)

Applicable to products having a high o-cresol content and a high m-cresol content. The principle consists in distillation of a tast portion under carefully defined conditions and determination of the mass of residue obtained. The distillation is carried out according to ISO 918. When all the water has distilled over, continue the distillation without intermediate measurements, until either the dry point or the final boiling point is reached.

Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part 13 : Determination of residue on distillation (Cresylic acid and xylenols only)

ISO 1897-10:1982 工业用苯酚、邻甲酚、间甲酚、对甲酚、甲苯基酸和二甲苯酚 试验方法 第10部分:水浴蒸发干残余物的测定(甲苯基酸和二甲苯酚除外)

This method is applicable to products having a dry residue after evaporation, greater than or equal to 0, 005 % (m/m). The principleconsists in evaporation of a test portion in a platinum dish on a boiling water bath and drying of the residue in an oven at (105 +- 2) ?C for 1 h. Replaces ISO Recommendation R 1900-1971.

Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part 10 : Determination of dry residue after evaporation on a water bath (Excluding cresylic acid and xylenols)

ISO 1897-5:1977 工业用苯酚、邻甲酚、间甲酚、对甲酚、甲苯基酸和二甲苯酚 试验方法 第5部分:不溶于水的杂质目视试验(只用于苯酚)

Simple empirical test of no great precision. The principle consists in shaking a test portion with sodium hydroxide solution under specified conditions and assessment of any insoluble matter present in suspension in the mixture by comparison either with an agreed standard turbidimetric solution or with water. The comparison of the turbidity of the two solutions is carried out by viewing vertically and with the electric lamp equipped with a ligth blue "dayligth" bulb switched on. ISO 1897/5 replaces ISO Recommendation R 1905-1971.

Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part V : Visual test for impurities insoluble in water (Phenol only)

ISO 1897-6:1977 工业用苯酚、邻甲酚、间甲酚、对甲酚、甲苯基酸和二甲苯酚 试验方法 第6部分:有无硫化氢的试验(只用于甲苯基酸和二甲苯酚)

simple test which cannot be used to obtain quantitative results. The principle of the method is based on formation of a brown colour on lead acetate paper due to reaction with any hydrogen sulphide present in a test portion. ISO 1897/6 replaces ISO Recommendation R 1908-1971.

Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part VI : Test for absence of hydrogen sulphide (Cresylic acid and xylenols only)

ISO 1897-7:1977 工业用苯酚、邻甲酚、间甲酚、对甲酚、甲苯基酸和二甲苯酚 试验方法 第7部分:色度的测定(只用于甲苯基酸和二甲苯酚)

Specifies a method for the comparison of the colour of a test portion against the colour of colorimetric standard colour matching solutions. The colour of cresols present in the test portion is liable to darken on keeping and on exposure to ligth. ISO 1897/7 replaces ISO Recommendation R 1909-1971.

Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part VII : Measurement of colour (Cresylic acid and xylenols only)

ISO 1897-8:1977 工业用苯酚、邻甲酚、间甲酚、对甲酚、甲苯基酸和二甲苯酚 试验方法 第8部分:邻甲酚含量的测定(只用于甲苯基酸和二甲苯酚)

This method is the best available at the present time. It was primarily intended for samples containing 40 % (m/m) or more but has been extended to lower ranges. The principle is based on dehydration of a quantity of the test sample. Formation of a complex between o-cresol and cineole (having a crystallizing point not lower than 1, 2 ?C) by addition of excess cineole to a test portion of the dehydrated sample. Determination of the crystallizing point of the complex in a crystallizing point apparatus. Calculation of the content from the water content of the test sample and the crystallizing point of the complex. The relation between crystallizing point and o-cresol content of o-cresol/cineole mixtures is given in a table. ISO 1897/8 replaces ISO Recommendation R 1910-1971.

Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part VIII : Determination of o-cresol content (Cresylic acid and xylenols only)

ISO 1897-9:1977 工业用苯酚、邻甲酚、间甲酚、对甲酚、甲苯基酸和二甲苯酚 试验方法 第9部分:间甲酚含量的测定(只用于甲苯基酸)

The method is applicable to a product containing 35 % (m/m) to 60 % (m/m) of m-cresol, not more than 5 % (m/m) of phenol, and not more than 35 % (m/m) of o-cresol. The principle is based on dehydration of a quantity of the test sample. Formation of a complex between m-cresol and urea by addition of excess urea to a test portion of the dehydrated sample. Determination of the crystallizing point of the complex in a crystallizing point apparatus. Calculation of the content from the water content of the test sample and the crystallizing point of the complex. The relation between crystallizing point and m-cresol content of m-cresol/urea mixtures is given in a table. ISO 1897/9 replaces ISO Recommendation R 1911-1971.

Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part IX : Determination of m-cresol content (Cresylic acid only)

ISO 1897-1:1977 工业用苯酚、邻甲酚、间甲酚、对甲酚、甲苯基酸和二甲苯酚 试验方法 第1部分:总则

Gives also the procedure to be used for the determination of water content by the Karl Fischer method. This method is applicable only to liquefied phenol and m-cresol. The determination of density at 20 ?C is applicable only to liquefied phenol, m-cresol, cresylic acid and xylenols.

Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part I : General

ISO 1897-2:1977 工业用苯酚、邻甲酚、间甲酚、对甲酚、甲苯基酸和二甲苯酚 试验方法 第2部分:水含量的测定 Dean and Stark 法

The principle of the method is based on distillation of a test portion in the presence of an appropriate solvent, in a Dean and Stark apparatus. Determination of the volume of condensate collected in the receiver tube, brought to ambient temperature, assuming this liquid to be water. An appropriate solvent is xylene, solvent naphtha or alternatively, toluene. ISO 1897-2 replaces ISO/R 1898-1971.

Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part II : Determination of water; Dean and Stark method

ISO 1897-3:1977 工业用苯酚、邻甲酚、间甲酚、对甲酚、甲苯基酸和二甲苯酚 试验方法 第3部分:中性油和吡啉碱的测定

Specifies a volumetric method, after distillation, for determining of neutral oils, and a titrimetric method, after distillation, for determining of pyridine bases. The principle is based on distillation from an aqueous alkaline solution of a test portion. Measurement of the volume of neutral oils collected. Titration of the bases present in the aqueous distillate and in the oils with standard volumetric hydrochloric acid solution using methyl orange and xylene cyanol FF as indicator. An assembled distillation apparatus is shown in a figure.

Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part 3 : Determination of neutral oils and pyridine bases

ISO 1897-4:1977 工业用苯酚、邻甲酚、间甲酚、对甲酚、甲苯基酸和二甲苯酚 试验方法 第4部分:不溶于氢氧化钠溶液的杂质目视试验(甲苯基酸和二甲苯酚除外)

Simple empirical test of no great precision. The principle consists in shaking a test portion with sodium hydroxide solution under specified conditions and assessment of any insoluble matter present in suspension in the mixture by comparison either with an agreed standard turbidimetric solution or with sodium hydroxide solution. The comparison of the turbidity of the two solutions is carried out by viewing vertically and with the electric lamp equipped with a ligth blue dayligth-bulb switched on.

Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part IV : Visual test for impurities insoluble in sodium hydroxide solution (Excluding cresylic acid and xylenols)

ISO 2208:1973 工业用苯酚、邻甲酚、间甲酚和对甲酚 用分子筛干燥后结晶点测定

Phenol, o-cresol, m-cresol and p-cresol for industrial use; Determination of crystallizing point after drying with a molecular sieve