B72 林产化工原料 标准查询与下载



共找到 521 条与 林产化工原料 相关的标准,共 35

1.1 This specification covers the following kinds of spirits of turpentine as defined by the Code of Federal Regulations and Terminology D 804: gum spirits of turpentine, steam-distilled wood turpentine, sulfate wood turpentine, and destructively-distilled wood turpentine.1.2 The purchaser should specify the kind of spirits of turpentine desired.1.3 This specification is no longer widely used as it only specifies physical characteristics and not chemical composition. This specification was developed when the chief use for turpentine was as a solvent. Currently, especially in the United States, only a very limited quantity of turpentine is used as a solvent. Its main end use is as a raw material for the preparation of polyterpene type resins and synthetic organic chemicals. In spite of its limited application as a solvent, and hence the limited use of this specification, it is considered to be important to retain this specification. When information is required on chemical composition, gas chromatography is the recommended procedure (see Test Methods D 6387).

Standard Specification for Spirits of Turpentine

ICS
87.060.30
CCS
B72
发布
2002
实施

本标准规定了子午线轮胎橡胶的质量要求.取样和相应的试验方法,以及包装,标志.贮存和运输。 本标准适用于以鲜胶乳、胶园凝块为原料生产的子午线轮胎橡胶。

Raw natural rubber-Radials tire rubber

ICS
CCS
B72
发布
2001-08-20
实施
2001-11-01

本标准规定了化学试剂用粉状活性炭的技术要求、试验方法、检验规则。 本标准适用于以木质为原料生产的粉状活性炭,也适用于以木质为原料的颗粒活性炭。

Activated carbon for chemical reagent

ICS
CCS
B72
发布
2000-11-10
实施
2001-02-01

本标准规定了柠檬酸脱色用活性炭的技术要求、试验方法、检验规则。 本标准适用于以木质原料采用化学法活化工艺生产的粉状活性炭。 本产品主要在发酵法柠檬酸工业生产过程作为脱色剂,亦可用作其他工业品的液相脱色。

Activated carbon for the decolourization of citric acid

ICS
CCS
B72
发布
2000-11-10
实施
2001-02-01

This International Standard specifies a method of determining the colour of raw natural rubber according to a standard colour scale.

Rubber, raw natural - Colour index test

ICS
83.040.10
CCS
B72
发布
1999-12
实施

Microcrystalline cellulose for synthetic leather

ICS
CCS
B72
发布
1999-08-16
实施
1999-12-01

Gum rosin from P.elliottii

ICS
CCS
B72
发布
1999-08-16
实施
1999-12-01

Technical specification for production of prevulcanized natural latex

ICS
CCS
B72
发布
1999-05-06
实施
1999-07-01

Raw natural rubber.Technical specification for production of light colour standard rubber

ICS
CCS
B72
发布
1999-05-06
实施
1999-07-01

Raw natural rubber,Technical specification for production of tyre rubber

ICS
CCS
B72
发布
1999-05-06
实施
1999-07-01

Raw natural rubber. Plasticity retention index (PRI).

ICS
83.040.10
CCS
B72
发布
1999-03-01
实施
1999-03-20

This test method is used to determine the quantity of iron and copper present in vegetable tanning materials or vegetable tannin extracts prepared using Practices D 4901, D 6404, or D 6405. Because of the possibility of errors in this test method it is essential that the method be followed exactly in order to obtain reproducible results both among specimens within a laboratory and for analyses between laboratories.1.1 This test method is intended for use in determining iron and copper content in vegetable tanning materials. This test method is applicable to liquid, solid, pasty and powdered extracts, to raw and spent materials, and to tannery liquors. 1.2 The values stated in SI units are to be regarded as the 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Analysis of Iron and Copper in Vegetable Tanning Materials

ICS
59.140.10 (Processes and auxiliary materials)
CCS
B72
发布
1999
实施

This test method is used to determine one of the chemical properties of tannery liquors which are relevant for the vegetable tanning process and influence the astringency of vegetable tanning liquors. The astringency of liquors is dependent upon the solids and tannin content and the acidity. This test method provides a standard procedure for determining the total acidity for any sample of vegetable tanning liquor. The specimens are aliquots from the analytical solution prepared from the sample of tannery liquor collected for this purpose. The total acidity of the liquor sample is determined by one of two titrametric procedures described in this test method.1.1 This test method covers determining the acidity of tannery liquors made up from vegetable tanning materials. 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Determining Acidity of Vegetable Tanning Liquors

ICS
59.140.10 (Processes and auxiliary materials)
CCS
B72
发布
1999
实施

This test method is used to determine the chemical properties of tannery liquors which are relevant for the vegetable tanning process and influence the astringency of vegetable tanning liquors. The astringency of liquors is dependent upon the solids and tannin content and the acidity. This method provides a standard procedure for determining these properties for any sample of vegetable tanning liquor. The specimens are aliquots from the analytical solution prepared from the sample of tannery liquor collected for this purpose. The total solids, soluble solids, and non-tannins content are determined and then the tannin content of the liquor sample is calculated. Because the amount of tannin per liter of analytical solution is less than that required for Test Method D 6401, a table specifying the quantity of prepared hide powder to be used for solutions with lower tannin concentrations is included in this test method. The total acidity of the liquor sample is determined by one of two titrametric procedures described in Test Method D 6410. The results of this test method are dependent on a great many variables but particularly upon: the temperature conditions under which the solutions were prepared and stored and the temperature at which the current analysis is performed; the uniformity and consistency of the Kaolin paste layer deposited onto the filter paper; the rate of solution run-out from the pipette; conditions related to the properties of the hide powder used to react with the tannin content of the solution; etc. It is, therefore, essential that the method be followed exactly in order to obtain reproducible results both among specimens within a laboratory and for analyses between laboratories.1.1 This test method covers the analysis of tannery liquors made up from vegetable tanning materials. 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Analysis of Tannery Liquors

ICS
59.140.10 (Processes and auxiliary materials)
CCS
B72
发布
1999
实施

This test method is used to determine the quantity of iron and copper present in vegetable tanning materials or vegetable tannin extracts prepared using Practices D 4901, D 6404, or D 6405. Because of the possibility of errors in this test method it is essential that the method be followed exactly in order to obtain reproducible results both among specimens within a laboratory and for analyses between laboratories.1.1 This test method is intended for use in determining iron and copper content in vegetable tanning materials. This test method is applicable to liquid, solid, pasty and powdered extracts, to raw and spent materials, and to tannery liquors. 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Analysis of Iron and Copper in Vegetable Tanning Materials

ICS
59.140.10 (Processes and auxiliary materials)
CCS
B72
发布
1999
实施

This test method is used to determine the quantity of sugar present in vegetable tanning materials or vegetable tannin extracts. The amount of the reducing sugars, total sugars, and non-reducing sugars in a sample of material or extract can be determined by this method. Because of the possibility of errors in this test method it is essential that the method be followed exactly in order to obtain reproducible results both among specimens within a laboratory and for analyses between laboratories.1.1 This test method covers determining the sugars present in vegetable tanning materials. 1.2 The values stated in SI units are to be regarded as the standard. The inch-pound units 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Analysis of Sugar in Vegetable Tanning Materials

ICS
59.140.10 (Processes and auxiliary materials)
CCS
B72
发布
1999
实施

This practice provides standard procedures for obtaining representative samples of various materials used as a source of tannins for the tanning industry. Procedures are described for obtaining representative samples of economical and convenient quantities from a lot, or sections of a lot, of material for examination and analysis so that agreement may be reached with regard to the extent of variation of quality in different portions of a lot and the average quality of the entire lot of material. No directions for sampling, however explicit, can take the place of judgment, skill, and previous experience on the part of persons actually engaged in the sampling or the supervision of the sampling. These directions are intended to supplement that experience and, particularly, to serve as a guide in the selection of the method which is to be used, in common, by each of two or more contracting parties. Tanning materials contain moisture in varying amounts, depending both on the nature of the material and on the climatic conditions, so that sampling must be carried out as quickly as is consistent with thoroughness in order to avoid changes in moisture content.1.1 This practice covers obtaining representative samples from shipment lots of botanical materials containing tannin. 1.2 The values stated in SI units are to be regarded as the standard. The inch-pound units 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Practice for Sampling Vegetable Materials Containing Tannin

ICS
59.140.10 (Processes and auxiliary materials)
CCS
B72
发布
1999
实施

This test method is used to determine the moisture content of materials (raw or spent) that are to be extracted for tannin analysis. The value obtained for moisture content by this test method is used to calculate the results of the other analyses on this material to a moisture-free basis. The specimens are obtained from the material prepared for extraction in Practice D 6405. Tanning materials contain moisture in varying amounts, depending both on the nature of the material and on the climatic conditions, therefore sampling must be carried out as quickly as is consistent with thoroughness in order to avoid changes in moisture content. Negative errors may occur in the moisture determination because under the conditions of this method there may be retention of moisture by certain components (for example, hydrated salts or water bound to organic structures) of the raw or spent material or because of oxidation of other components (for example, tannins) of the raw or spent material. Positive errors may occur in the moisture determination because under the conditions of this test method there may be volatilization of certain components of the raw or spent material other than water. It is known that other factors can also affect the quantity of volatile matter (moisture) released by the specimen. These factors include but are not limited to: particle size of the test specimen, quantity of test specimen, oven temperature, exposure time in the oven, shape of the specimen container, and type of oven (for example, gravity or mechanical convection) used. Because of the possibility of unknown errors in this test method it is essential that the method be followed exactly in order to obtain reproducible results both among specimens within a laboratory and for analyses between laboratories.1.1 This test method is intended for use in determining the moisture content in raw and spent materials that are extracted for tannin analysis. The moisture content of the sample is operationally defined to be equal to the weight loss experienced as a result of the evaporation which occurs in the drying oven. 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Determining Moisture in Raw and Spent Materials

ICS
59.140.10
CCS
B72
发布
1999
实施

This test method is used to determine the proportion of the total solids which are soluble solids and that proportion which are insoluble solids in a solution of tannin extract or in the water extract from raw or spent materials prepared for tannin analysis. The specimens are aliquots from the analytical solutions prepared from tannin extracts or the water extract solutions prepared from raw or spent materials. The soluble solids are defined as the portion of the total solids which are dissolved in the water and pass through a filter prepared by depositing a layer of Kaolin paste onto a standard filter paper. The insolubles are defined as the portion of the total solids which do not pass through the standard filter paper prepared with the layer of Kaolin paste. The results of this test method are dependent on a great many variables but particularly upon: The temperature conditions under which the solutions were prepared and stored and the temperature at which the current analysis is performed; The uniformity and consistency of the Kaolin paste layer deposited onto the filter paper; The rate of solution run-out from the pipette; etc. It is, therefore, essential that the method be followed exactly in order to obtain reproducible results both among specimens within a laboratory and for analyses between laboratories.1.1 This test method is intended for use in determining the quantity of soluble solids and insolubles in solutions of tannin extracts, water extracts of vegetable tanning materials, or tanning liquors. This test method is applicable to the analysis of liquid, solid, pasty, and powdered tannin extracts and to the water extracts of raw or spent materials. 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Determing Soluble Solids and Insolubles in Extracts of Vegetable Tanning Materials

ICS
59.140.10
CCS
B72
发布
1999
实施

This test method is used to determine the proportion of the total soluble solids which are soluble non-tannins and the proportion which are tannins in a solution of tannin extract or in the water extract from raw or spent materials prepared for tannin analysis. The specimens are aliquots from the analytical solutions prepared from tannin extracts or the water extract solutions prepared from raw or spent materials. The soluble non-tannins are defined as the portion of the soluble solids which are not absorbed or bound by a prepared hide powder material. The tannins are defined as the portion of the soluble solids which are absorbed or bound by a prepared hide powder material. The results of this test method are dependent on a great many variables but particularly upon: The temperature conditions under which the solutions were prepared and stored and the temperature at which the current analysis is performed; The uniformity and consistency of the Kaolin paste layer deposited onto the filter paper; The rate of solution run-out from the pipette; Conditions related to the properties of the hide powder used to react with the tannin content of the solution; etc. It is, therefore, essential that the method be followed exactly in order to obtain reproducible results both among specimens within a laboratory and for analyses between laboratories.1.1 This test method is intended for use in determining the quantity of soluble non-tannins and tannin in solutions of tannin extracts, water extracts of vegetable tanning materials, or tanning liquors. The method is applicable to the analysis of liquid, solid, pasty, and powdered extracts and to extracts of raw or spent materials. 1.2 The values stated in SI units are to be regarded as the standard. The inch-pound units 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Determining Non-Tannins and Tannin in Extracts of Vegetable Tanning Materials

ICS
59.140.10 (Processes and auxiliary materials)
CCS
B72
发布
1999
实施



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