DLA A-A-197-1980 HERBICIDE 2 4-DICHLOROPHENOXACETIC ACID (SALTS AND ESTERS)《(盐酯)4-二氯芬乙酸 2 4除草剂》.pdf

1、A-A-197 November 6, 1980 : COMMERCIAL ITEM DESCRIPTION HERBICIDE, 2,4-DICHLOROPHENOXYACETIC ACID (SALTS AND ESTERC) The General Cervices Administration has authorized the use of this commercial item description in lieu of Federal Specification 0-H-200. This commercial item description covers the sys

2、temic herbicide, 2,4-dichlorophenoxyacetic acid. The herbicide sha;L1 be of the following types; and classes: Type II - Liquid salt formulation Type III - Liquid ester formulation Class 1 - Volatile alkyl esters of 2,4-dichlorophenoxyacetic acid Class 2 - Low Volatile esters of 2,4-dichlorophenoxyac

3、etic acid Salient characteristics: Liquid salts. The liquid salts of 2,4-dichlorophenoxyacetic acid shao contain a minimum of two pounds of 2,4-D acid equivalent per gallon of formulation at 68OF (2OOC). The product shall be soluble in hard or soft water and shall exhibit no persistent foam. The pro

4、duct shall make a solution that contains no ingredients which will inhibit the application of the material at the concentrations normally used for weed control. The product shall remain free of solid material when held at a temperature of 25OF (-3.8OC) for a period of 5 days. Liquid esters. The liqu

5、id esters of 2,4-dichlorophenoxyacetic acid shall contain a minimum of two pounds of 2,4-D acid equivalent per gallon of formulation at 68OF (2OOC). emulsifiable with water. It shall contain the necessary solvents and carrying and emulsifying agents, such that the emulsion formed requires a minimum

6、of agitation during the mixing and application period. shall not detract from the herbicidal activity of the active ingredient and offer maximum penetration and spread of the spray solution. The product shall remain free of solid material when held at a temperature of 25OF (-3.8OC) for a period of 5

7、 days. The quantities o 2,4-dichlorophenoxyacetic acid contained in the salt and ester formulations shall be determined by AOAC Methods 6.275 - 6.279. The formulation shall be a clear solution readily miscible with oil and The oil carrier in the formulation The issue of the AOAC method in effect on

8、the date of solicitation shall be used to determine com- pliance with stated requirements. Registration and labeling. The herbicide shall be registered and labeled in compliance with the Regulations for the Enforcement of the Federal Insecticide Fungicide and Rodenticide Act (40 CFR 162-180). Certif

9、ication. The contractor shall certify that the product offered meets the salient character- istics of this description and that the product conforms to the producers own drawings, specifications, standards and quality assurance practices and is the same product offered for sale in the commercial mar

10、ketplace. delivery and thereafter as may be otherwise provided for under the provisions of the contract. The Government reserves the right to require proof of such conformance prior to first Packaging, packing and marking. The packaging and packing shall be in accordance with normal commercial pract

11、ice and shall assure acceptance by common carrier and provide product protection against loss and damage during multiple shipments, handling, and storage. The shipping containers shall be in compliance with the National Motor Freight Classification and Uniform Freight Classification, Marking sha-ll

12、be as specified in the contract 4r order. x / Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-1 97 Notei SelCiW. In order toqid in the selection of a type, the recommended use of each type is provided Type II Type ILI - Class 1. Herbicide is effe

13、ctive on deep rooted perennial weeds, old - Herbicide is effective on easy-to-kill or moderately easy-to-kill weeds. semi-resistant weeds and woody species, Class 2. Herbicide is used the same as Class 1 however, should be be used in areas where sensitive crops are grown such as cotton. AOAC methods

14、 are available from the Association of Official Analytical Chemists, PO Box 540, Benjamin Franklin Station, Washington, Dc 20044. Code of Federal Regulations (CFR), may be obtained from the Superintendent of Documents, US. Government Printing Office, Washington, DC 20402. -2- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-