u.s. epa, pesticide product label, maquat lc12s - 80%, 04 ...the high- molecular weight alkyl group...

12
I LABELLING: The Environmental Protection Agency, under the Insecticide, Fungicide, and Rodenticide Act, regulates the movement of "econull1ic poisons" in interstate commerce. These include products that contain quaternary ammonium compounds (Maquats) intended for use as germicides, disinfectants, or sanitizers, on inanimate objects or surfaces. Most states have similar legislation to regu:ate intra-state commerce. Generally, tl1f!se states comply with Federal registration. Some maintain their own jurisdiction. In executing the law, the Federal as well as the State Agencies require registration of labels proposed for such products. In pharmaceutical and cosmetic applications, clearance should be obtained from the Food and Drug Administration, Federal Department of Health, Education and Welfare. In order to register a product, a single copy of PR9-199 (Application for Registration of Economic Poisons) must accompany quintuplicate (5) typewritten copies of the proposed label. These are sent to: Director Registration Section Environmental Protection Agency Pesticides Regulation Division 12th and Independence Avenue Washington, D. C. 20250 Please refer to our Environmental Protection Agency registration number when registering a product with the above agency. The correct registration number is listed under each plod:Jct on our MAQUAT specification page. The Environmental Protection Agency registration number must be listed on every label for a quaternary-based compound making a germicidal, algaecidal, or sanitizer, claim. It is also necessary that the signal words "DANGER", "CAUTION" and "KEEP OUT OF REACH OF CHILDREN" be in the required point type based on the size of the label. The following table will serve as a guide for the ·i.ipe-size requirements on various sized labels: - Size of Label "Danger" & "Caution" Words "Keep Out of Reach ACCEPT on Front Panel as Required Minimum Type of Children" in Square Inches Size all Capitals as Required 4--'.1/ 'r-74. 5 and under 6 point 6 point t Ih("t.. I above 5 to 10 10 point 6 point , f; :.\... ::.; . qr'f)'-_ .:;';' ': '. above 10 to 15 12 point 8 point above 15 to 30 14 point 10 point L.l ";''': -" .," do. 4 over 30 18 point 12 point J 03 ) Th.) ingredients, directions for use, and precautions for handling should be listed on the label. 'n listing the active ingredients, proper and most exacting identification is required. quaternaries, the high- molecular weight alkyl group must be identified with a listing of the individual \ ,,, components either with percentages or in their order of dominance. 1fM-xJ (l,t> Option (11 Qo/ Option (2) The actual percentages of the major alkyl groups present in the descending order of magnitude, i.e., alkyl (60% C 14 , 30% C 16 , 5% C 1 2' 5% C s -CIS) dimethyl benzyl ammonium chlorides, or Each alkyl group in the descending order of magnitude only, i.e., alkyl (C 1 4, Cl 6, Cl 2 and related groups from Ca - Cl 8) dimethyl benzyl ammonium chlorides. If Option (1) is selected, then only the total percentage of the inert ingredient WIthout any chemical description need be listed: otherwise if Option (2) is selected, then the inert ingredients must be identified. • • (3)

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Page 1: U.S. EPA, Pesticide Product Label, MAQUAT LC12S - 80%, 04 ...the high- molecular weight alkyl group must be identified with a listing of the individual \ ,,, -~ components either with

I

LABELLING:

The Environmental Protection Agency, under the Insecticide, Fungicide, and Rodenticide Act, regulates the movement of "econull1ic poisons" in interstate commerce. These include products that contain quaternary ammonium compounds (Maquats) intended for use as germicides, disinfectants, or sanitizers, on inanimate objects or surfaces. Most states have ~nacted similar legislation to regu:ate intra-state commerce. Generally, tl1f!se states comply with Federal registration. Some maintain their own jurisdiction. In executing the law, the Federal as well as the State Agencies require registration of labels proposed for such products. In pharmaceutical and cosmetic applications, clearance should be obtained from the Food and Drug Administration, Federal Department of Health, Education and Welfare.

In order to register a product, a single copy of PR9-199 (Application for Registration of Economic Poisons) must accompany quintuplicate (5) typewritten copies of the proposed label. These are sent to:

Director Registration Section Environmental Protection Agency Pesticides Regulation Division 12th and I ndependence Avenue Washington, D. C. 20250

Please refer to our Environmental Protection Agency registration number when registering a product with the above agency. The correct registration number is listed under each plod:Jct on our MAQUAT specification page.

The Environmental Protection Agency registration number must be listed on every label for a quaternary-based compound making a germicidal, algaecidal, or sanitizer, claim. It is also necessary that the signal words "DANGER", "CAUTION" and "KEEP OUT OF REACH OF CHILDREN" be in the required point type based on the size of the label. The following table will serve as a guide for the ·i.ipe-size requirements on various sized labels:

-Size of Label "Danger" & "Caution" Words "Keep Out of Reach

ACCEPT ~D on Front Panel as Required Minimum Type of Children" in Square Inches Size all Capitals as Required

4--'.1/ 'r-74. 5 and under 6 point 6 point

t Ih("t.. ~ I ~ above 5 to 10 10 point 6 point

, f; :.\... ::.; . qr'f)'-_

.:;';' ': '. "://J_:j:d~'~ above 10 to 15 12 point 8 point

above 15 to 30 14 point 10 point L.l ";''': -" .," do. 4 ~(i over 30 18 point 12 point

J 03 ) Th.) ingredients, directions for use, and precautions for handling should be listed on the label. 'n

listing the active ingredients, proper and most exacting identification is required. \~ith quaternaries, the high- molecular weight alkyl group must be identified with a listing of the individual

\ ,,, -~ components either with percentages or in their order of dominance.

1fM-xJ ~ ~ ~ (l,t> Option (11

illi~ Qo/ Option (2)

The actual percentages of the major alkyl groups present in the descending order of magnitude, i.e., alkyl (60% C14 , 30% C16 , 5% C1 2' 5% Cs -CIS) dimethyl benzyl ammonium chlorides, or

Each alkyl group in the descending order of magnitude only, i.e., alkyl (C1 4,

Cl 6, Cl 2 and related groups from Ca - Cl 8) dimethyl benzyl ammonium chlorides.

If Option (1) is selected, then only the total percentage of the inert ingredient WIthout any chemical description need be listed: otherwise if Option (2) is selected, then the inert ingredients must be identified.

• •

(3)

Page 2: U.S. EPA, Pesticide Product Label, MAQUAT LC12S - 80%, 04 ...the high- molecular weight alkyl group must be identified with a listing of the individual \ ,,, -~ components either with

Whenever unusual claims are made, they will require substantiation with laboratory or field test data. The Environmental Protection Agency also makes a sharp distinction in the various terms used to denote the degree or extent of germicidal activity. Knowledge of these will assist in the preparation of an acceptable label.

Sterilizer:

Germicide and Disinfectant:

Fungicide:

Sanitizer:

Anti$8ptic:

Algaecide:

Algaestat:

Bacteriostat:

Must kill all living microorganisms when used as directed.

Must kill all of a given species of microorganisms except resistant sporeformers.

Must kill all of a given species of fungi.

Must reduce bacterial count to a safe level in accordance with public health standards or to stated significant level where no standards have been set.

Covers preparations intended solely for use on living tissue either as a germicide or bacteriostat.

Must kill algae.

For the control of algae.

I nhibits the growth of bacteria.

A basic knowledge of the type and strain of the microorganisms used in testing is Ilelpful. The table below gives some of the more common types. A list of the test methods used are also reported below.

MICROORGAN ISM

Staphlococcus aureus

Salmonella choleraesuis

Salmonella typhosa

Escherichia coli

Pseudomonas aeruginosa

MORPHOLOGY

Gram + Cocci

Gram­Rod

Gram -Rod

Gram­Rod

Gram -Rod

TEST METHODS

A.O.A.C. Use Dilution Confirmation Test

A.O.A.C. Phenol Coefficient Test Method

A.O.A.C. Germicidal and Detergent Sanitizer Official Method (Hard Water)

After the label has been reviewed for compliance with the Act, the company submitting the label will be notified of any changes or deficiencies. Mason Chemical Company will be pleased to prepare or advise customers or prospective customers on all labelling procedures, Federal or State.

The following are two representative sample labels of a germicide and algaecide. ----:=-:=-:;:-;-ACCEPTED

J/-:1J/-/~ • I • " • • · , . ,. · . .,. • •• I • t. • t

(4)

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Page 3: U.S. EPA, Pesticide Product Label, MAQUAT LC12S - 80%, 04 ...the high- molecular weight alkyl group must be identified with a listing of the individual \ ,,, -~ components either with

-----~--- ------ - --

5· 10 ppm:

50· 100 ppm:

200 ppm:

400 ppm:

1400 ppm:

GERMICIDE

(Left Panel)

Recommended Use Dilution

Control of microorganisms in secondary oil recovery. - --~ -- - --

Sanitizer for poultry drinking water.

SiS

(Sample Labell for a 10% product

Sanitization of eqll: -nent, dishes, appliances, glassware, utensils in dairy, Mverage, food processing, food I acturing, food dispensing plants, etc. General deodorizauvil du~ to bacterial decay.

Disinfection of food ste,rage bins, refrigeration, etc. Sanitization of garbage pails and porous surfaces. Sanitary maintonance of walls, floors, etc. Disinfection and sanitary maintenance of smooth nonporous surfat·es. Terminal disinfection.

I nstrument disinfection.

Preparation of Use Dilution

ppm of active quaternary

5 10

100 200 400

1000

For 10% Dilution

1 :20,000 1: 10,000 1: 1,000 1 : 500 1 : 250 1 : 100

11f'..j,.r$f 1, ,", I'~' Hi' .,_,II~:'n'.

• 1- •• t ,,' ,l> tI • , ; .!:

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~~~- ~'_' _./ -~' ~"'i.) ~~~~~~~-

(5)

Cone. % active quaternary

0.0005 0.001 0.01 0.02 0.04 0.1

Fl. oz. per gals.

1 oz./l60 gals. 1 oz./ 80 gals. 0.5 oz./ 4 gals. 1 oz./ 4 gals. 20z.I 4 gals. 50z.l 4 gals.

.. ,

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Page 4: U.S. EPA, Pesticide Product Label, MAQUAT LC12S - 80%, 04 ...the high- molecular weight alkyl group must be identified with a listing of the individual \ ,,, -~ components either with

(Name of Product)

E. P. A. Reg. No.

Concentrated

GERMiCIDE

ICenter Panel)

Germicide· Sanitizer· Disinfectant

Active Ingredient: Inert Ingredient:

(Refer to page 3 of this Bulletin for) (Ingredient Instructions and Options)

DANGER (See table page 3) KEEP OUT OF REACH OF CHILDREN (See table page 3)

(Sample Label) for a 10% product

Corrosive. Causes severe eye and skin damage. Do not get.in eyes, on skin, or on clothing. Wear goggles or face shield and rubber gloves when handling. Harmful or fatal if swallowed. Avoid contamination of food.

CAUTION (See table page 3) Discontinue use of the product as a poultry water sanitizer when treating the flock with drugs such as vaccines. sulfonamides. or sulfaquinoxaline.

FIRST AID In case of contact, immediately flush eves or skin with plenty of water for at least 15 minutes. For eyes, call a physician. Remove and wash contaminated clothing before reuse. If swallowed, drink promptly a large quantity of milk, egg whites, gelatin solution or, if these are not available, drink large quantities of water. Avoid alcohol. Call a physician immediately.

NOTE TO PHYSICIAN Probable mucosal damage may contraindicate the use of gastric lavage. Measures against circulatory shock. respiratory depression and convulsion may be needed.

Keep from Freezing

r-:-.

;' "I-~~-74 -,

. , .. " I

(Name)

(Address)

(6)

, . I t I. . ,. • •• ••

Net Contents

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Page 5: U.S. EPA, Pesticide Product Label, MAQUAT LC12S - 80%, 04 ...the high- molecular weight alkyl group must be identified with a listing of the individual \ ,,, -~ components either with

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GERMICIDE

(Right Panel)

Directions for Use

(Sample Label; for a 10% product

(Name) is a quaternary ammonium compound which may be used with compatible alkaline builders and sequestering agents. In dairy and food equipment applications, an exposure period of at least two minutes should be maintained when the temperature of the solution is at least 75°F and the pH of the solution is 6.0 or higher.

Sanitization

Clean with suitable detergent, rinse. Immerse food equipment and utensils in a solution containing 200 ppm of active quaternary. Where infectious germs may be present, rinse or immerse in a disinfecting solution containing 400 ppm or mort: of active quaternary after sanitizing as directed.

Instrument Disinfection

Preclean in suitable detergent removing adhering blood and serous·exudates. Immerse in solution containing 1400 ppm of active quaternary.

For Dairy and Restaurant Use

(Name) fulfills the criteria of Appendix F of the Grade "A" Pasteurized Milk Ordinance 1965. Recommendations of the U. S. Public Health Service in waters up to ppm hardness calculated as CaC03 when tested by the A.O.A.C. Germicidal and Detergent Sanitizers - Official Method.

-----------------~ ACCEPTED

¥-.2~-p~ UNDER Tllr. rEOi':q~L 1~ .. FCTIr.IDt FUNG.(·IIl;~ !~iJ J if )tl q i It ,,£ al:l

~~"u~oY'll3,rf v??;" (7)

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Page 6: U.S. EPA, Pesticide Product Label, MAQUAT LC12S - 80%, 04 ...the high- molecular weight alkyl group must be identified with a listing of the individual \ ,,, -~ components either with

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APR241972 ""~ R THE FEDERAL INSECTiCIDE flFI I'lE AND RODENTICIDE ACT FOR ECONOMIC ~O~,NI-WSTER; ED UNDER Nu .. J.#" ... L... II 1'8 UT '?III .. !!T "lS.

MAQUAlS Quaternary ammonium compounds

The Maquats are a selected group of quaternary ammonium compounds covering a wide range of products and properties. They have proven themselves exceptional microbicidal agents when used as disinfectants, sanitizers, deodorants, germicides and algaecides.

The dodecyl (C121. tetradecyl (CI4). and the hexadecyl (CIG) have been the most effective germicidal components of the alkyl radical. The Maquats are manufac­tured from these selp.ct alkyl groups to give the highest microbicidal activity along with the tinest physical properties.

We at Mason Chemical Company believe our progress and growth depend upon our finding ways to do that "something extra" for our customers. You will find us pleased to discuss any problems or projects which will help you make your product line more successful.

... . ,

2

Page 7: U.S. EPA, Pesticide Product Label, MAQUAT LC12S - 80%, 04 ...the high- molecular weight alkyl group must be identified with a listing of the individual \ ,,, -~ components either with

~----------------------------------------------------------------------------------~----------------------------------------------.. ~1

INTRODUCTION:

The Maquats are quaternary ammonium compounds manufactured by Mason Chemical Company of Chicago, Illinois. These products are characterized by a halide ion and a cationic nitrogen atom with four covalent carbon-nitrogen bonds. The nitrogen atom is attached to at least one long chain hydrocarbon radical. The straight chain radical ranges from Ca H 1 7 to C1 a H3 7 and is derived from coconut fatty acid. To illustrate:

(1) (2) Fatty acid ----.Nitril -----------. Tertiary amine + (Benzyl chloride) (Dichlorobenzyl

(1) Alkyl dimethyl benzyl ammonium chloride. chloride)-------O.A.C. (2) Alkyl dimethyl dichlorobenzyl ammonium chloride.

(1) (2)

CH2 -O + + CH2 -O

-C. I

R N R C.

CI" N CI"

/\ /\ CH3 CH3 CH3 CH3

This chemical structure gives these compounds high germicidal activity because of the well balanced cation (lipophilic) and anion (hydrophilic) group. The quaternary molecule is such that it gives excellent wetting and penetration action which enables it to kill microorganisms in areas inaccessible to other germicides_

PHYSICAL AND CHEMICAL PROPERTIES

The Maquats are all liquids and are extremely stable: They will maintain their stability over a wide range of temperatures and storage conditions_ Maquats are readily soluble in water and most polar solvents and insoluble in non-polar solvents.

They are compatible with many organic compounds, acids, alkalis and organic salts. Complete solubility and compatibility data is available from Mason Chemical Co. on a wide range of products. Maquats are incompatible with soap and anionic surface active agents.

The biological properties of these products are increased as you raise the temperature and pH of the product. All quaternaries will lose some of their effectiveness if the pH falls below 5. The Maquats maintain their bacteriological properties in waters up to and including 1100 ppm of hardness depending on the product selected. Maquats have been tested according to the latest bacteriological test methods and the results are reported on the specification page. The A.D.A.C_ Use Dilution Test is basic in determining the efficacy of the product as an environmental disinfectant. The applications for use of these Maquats are varied and include the following industries: Food, beverage, dairy, swimming pool, secondary oil recovery, paper, textile, aerosol, and many others. Mason Chemical Company will be pleased to suggest specific formulations on any applications where a quaternary arr.monium compound may be contemplated.

1 •

• , . , ,

, , ,

----------------------------~----------

Page 8: U.S. EPA, Pesticide Product Label, MAQUAT LC12S - 80%, 04 ...the high- molecular weight alkyl group must be identified with a listing of the individual \ ,,, -~ components either with

-f'V -

MAQUAT SPEC~FICATIONS PRODUCT LC 12S (1) MC 1416 (E) (1) MC 1412 (E) (1) OLe 1214 (7) MQ-2525

Active I ngredient(s) Alkyl dimethyl Alkyl dimethyl Alkyl dimethyl (2) Alkyl dimethyl Alkyl dimethyl benzyl

benzyl ammonium benzyl ammonium benzyl ammonium dichlorobenzyl ammonium ammonium chloride (AI

chloride-Isopropanol chloride-I sopropanol chloride-I sopropanol chloride Alkyl dimethyl ethylbenzyl (Ethanol) (Ethanol) ammonium chloride (8)

(Isopropanol)

I nert I ngredient(s) Water Water Water Water Water

% Active SO% - 80"A. (20%) (3) 50% - 80% (20%) (3) SO% - 80% (20%) (3) 50% -80% 25%A - 40%A - (20%) (3)

25%8 - 40%8 - --

% Inert SO% - SO% - -- 50% - -- 50% - 20% 50%

Alkyl Group Distribution (4) A) 5, 60, 30 & 5

C12, C14, C16 & CIS 61,23, 11 & 5 5,60,30 & 5 40, SO, 10 &- 61, 23, 11 & 5 8)50,30,17&3

Average Molecular Weight 360 380 358 425 384

Color A_P.H.A. (Max) 100 100 100 100 100

Physical Form Liquid Liquid Liquid Liquid Liquid

pH (10% Sol.) 7-8 7-8 7-8 7-8 7-8

Weight/Gal. 8.2 -7.8 8.2 -7.8 8.4 - 8.0 8.4 -8.0 8.2

Standard Container 55 gal. Liquipak 55 gal. Liquipak 55 gal. Liquipak 55 gal. Liquipak 55 gal. Liquipak

Gross - Net - Tare 50% 464-440-24 464440-24 464-440-24 464-440-24 464-440-24

80% 449425-24 449425-24 449-425-24 449425-24 449-425-24

BIOLOGICAL PROPERTIES (100% ACTIVE QUATERNARY BASIS) USE 01 LUTIONS A.O.A.C.

Staphlococcus aureus ATCC - 6538 Salmonella choleraesuis ATCC - 10708 Psaudomonas aeruginosa ATCC - 15422

PHENOL COEFFICIENTS A_O.A.C. (6) Killing Dilutions Average Values

StaphlococcuG auereus Salmonella typhosa Escherichia ct)li

ATCC - 6539 ATCC - 11229

"'~kl) WATER TOLS=RANCE (CaC03) at 2JO pprr,l..f C.l,r.,lound C't-,-nbers Test A.O.A.C. !"9.999% Kill in 30 sec. Staphlococcus au reus rscherichia co'i

ACTIVITY PGf INST ALGAE ~Illorella pyrenuitlosa i,lgaestatic pp .. 1

Algaecidal rpm

F.P ~. Reg. No. 10324 - 50% 80%

400 ppm (5) 400 ppm (5)

1400 ppm

1 :39905 P.C. 614 1 :39905 P .C. 443 1 :47600 P .C. 680

300 ppm 300 ppm

2 5

3 2

18 grain 18 grain

400 ppm 400 ppm 1400 ppm

1 :42850 P.C. 659 1 :42850 P.C. 476 1:27450 P.C. 392

550 ppm 32 grain 550 ppm 32 grain

2 5

8 9 (E) 13

(1) Meets all requirements of U.S.P. Benzalkonium Chloride. (2) Not effective against Pseudomonas aeruginosa at the disinfecting

concentration providing 400 ppm active quaternary. (3) Represents 20% I<.opropanol or 20% Ethanol when deSignated (E) (4) Alkyl group distribution ± 10% (5) 400 ppm = 1 :2500

400 ppm 400 ppm 1200 ppm

1 :47600 P.C. 666 1 :59500 P.C. 661 1/ 1 :42850 P.C. 612

2 5

6

32 grain .) 32 grain

7 (E) 14

400 ppm 400 ppm

1 :53500 P .C. 764 1 :74400 P .C. 783 1 :44340 P .C. 633

1100 ppm 1100 ppm

4 5

64 grain 64 grain

(6) Phenol ReSistance S.aureus 1:65 S. typhow 1 :90 E. coli 1 :70

400 ppm 400 ppm 800 ppm

1 :41600 P.C. 538 1 :41600 P .C. 594 1 :31300 PoCo 447

8SO ppm 850 ppm

17 16

50 grain SO grain

(7) CAUTION: Be sure to rinse with potable water all surfaces coming in contact with food after ilpplying a sanitizing rinse.

SC-18 Stearyl dimethyl

benzyl ammonium chloride

Water - Alcohol 25%

75%

-- 5 & 95 424 100

Paste 3-4 7.9

55 gal. Liquipak 464-440-24

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Page 9: U.S. EPA, Pesticide Product Label, MAQUAT LC12S - 80%, 04 ...the high- molecular weight alkyl group must be identified with a listing of the individual \ ,,, -~ components either with

~~~~------ --------------------------------------------------------------------------...

(Name) i:o: Eco'1omical Efficient Stable

ALGAECIDE (Left Panel)

(Sample Label) for a 10% product

(Name) is comp;ltible with all :owimming pool chemicals and is non·injurious to metal, paint, plastic, and tile.

(Name), when used as directed, will improve the appearance and cleanliness of the pool or water cooling systems.

(Name) prevents unsightly growths of algae. (Name) may be stored for prolonged periods of time without losing its effectiveness or strength. (Name) requires no :;pecial equipmem: for treating water. May be added directly to the pool in any spot or added to the water·circulation equipment.

(Name of Product) E.P.A. Reg. No. Concentrated Algaecide

ALGAECIDE (Center Panel)

(Name) for Control of Algae and Algal Slime Growth in Swimming Pools and Water Cooling Systems.

Active Ingredient: (Refer to Page 3 of this Bulletin for) Inert Ingredient: (I ngredient I nstructions and Options)

DANGER (See table page 3) KEEP OUT OF REACH OF CHILDREN (See table page 3)

Causes severe eye and skin damage. Do not get in eyes, on skin, or on clothing. Wear goggles or face shield and rubber gloves when handling. Harmful or fatal if swallowed. Avoid contamination of food.

CAUTION (See table page 3) This product is toxic to fish. Do not di:ocharge treated effluent into lakes, streams or ponds.

FIRST AID In case of contact, immediately flush eyes or skin with plenty of water for at least 15 minutes. For eyes, call a physician. Remove and wash contaminated clothing before reuse. If swallowed, drink promptly a large quantity of milk, egg whites, gelatin solution or, if these are not available, drink large quantities of water. Avoid alcohol.· Call a physician immediately.

NOTE TO PHYSICIAN:

Probable mucosal damage may contraindicate the use of gastric lavage. Measures against circulatory shock, respiratory depression and convulsion may be needed.

Keep from Freezing

(Name)

(Address)

ALGAECIDE

ACCEP ·0

lIH!lrfl Til,' Fu,r_RAl IN:;;[CTlrlO[

,Pi,.'iH 11)( /IN' ~/.~~' ;;11\"11'1: torT

'.

, f' It 1-' { •. 't." 'ul ~ fl ut:".1".".' .;:R"4'--__ _ Directions for Use in Swimming Pools lI' utl"LI( "It -

(Right Panel)

Initial Application (original filling): One gallon (Name) to each 50,000 gallons of water or ratio thereof.

Continued Application: One quart (Name) in 50,000 gallons of water every 3·5 days or as needed to maintain 2 ppm active. Quaternary Test Kits are available for this use. Booster Application: One quart (Name) in 50,000 gallons after a heavy or prolonged rainfall or when there is a heavy bathing load.

THE ABOVE DIRECTIONS SHOULD BE FOLLOWED EVEN WHEN THE POOL IS NOT IN USE.

Directions for Use in Water Cuoling Systems

Initial Application: 26 to 52 fluid ounces (20 to 40 ppm on an Oi(;tiil8 quaternary basis) per 1000 gallons of contained water. Subsequent Application: 7 to 20 fluid ounces (5 to 15 ppm on an activ~ t;:Jatcrna-y '.lJ:iI;! ;Jer 100') gallo")s of contained water.

THE ABOVE DIRECTIONS ARE TO BE FOLLOWED TWICE WEEKLY OR AS NEEDED.

If algae growth is noticeable, cle::n system. When heavy algae growth is prCSl'I't, svsterr '1'ill hr'le to bl> cleaned manually.

, ,

(8)

Page 10: U.S. EPA, Pesticide Product Label, MAQUAT LC12S - 80%, 04 ...the high- molecular weight alkyl group must be identified with a listing of the individual \ ,,, -~ components either with

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