Strength Determinations

MANUAL OF NAVAL PREVENTIVE MEDICINE

Hot water mechanical operations by being cycled through equipment

that is set up as specified under Section 4-2.3 and 4-2.16 and 4-2.17 and

achieving a utensil surface temperature of 160OF (71oC) as measured by an

irreversible registering temperature indicator; or

Chemical manual or mechanical operations, including the

application of sanitizing chemicals by immersion, manual swabbing,

brushing, or pressure spraying methods, using a solution as specified under

Section 4-4.1 by providing:

(1) An exposure time of at least 10 seconds for a

chlorine solution,

(2) An exposure time of at least 30 seconds for other

chemical sanitizer solutions, or

(3) An exposure time used in relationship with a

combination of temperature, concentration, and pH that yields sanitization

as defined in this Chapter.

4-4.5 Strength Determinations

Table 1-6 indicates the amount (in ounces) of chlorine compound requried

for initial concentration of 200 ppm free available chlorine(FAC) and the

amount (in ounces) of iodine-type disinfectant required for an initial

dilution of 25 ppm. Always follow directions on the container label.

a. Table 1-6 is a guide to determine the proper amount of sanitizing

solution for each amount of water. For specific guidelines follow the

manufacturers' recommendation.

Table 1-6. Ounces of agent required for chemical sanitizing

solution

Gallons of Water

Required Ounces of Agent:

Sodium Hypochlorite Liquid 5% Available

2.5

5.0

7.5

10.0

12.5

Chlorine to make 200 ppm Solution

Sodium Hypochlorite Liquid 10% Available

1.25

2.5

3.75

5.0

6.25

Chlorine to make 200 ppm Solution

Disinfectant, Liquid, Iodine Type

1.0

2.0

3.0

4.0

5.0

to make 25 ppm Solution

NOTE:

Three teaspoons equal 1 tablespoon.

Two tablespoons equal 1 ounce.

Eight ounces equal 1 Cup.