USP 671 Containers Performance Testing - Tara Innovations LLC

USP 671 Containers Performance Testing - Tara Innovations LLC

USP <671> Containers Performance Testing Hemant N. Joshi, Ph.D., MBA Tara Innovations LLC Parsippany, NJ [email protected] www.tarainnovations.com Topics covered General information Multiple Unit Containers for Capsules and Tablets (water permeation rate) Single Unit Containers for Capsules and Tablets (water permeation rate)

Single/Multiple Unit Containers for Liquids (water weight loss) Light Transmission Test General Information It is the purpose of USP 671 to provide standards for the functional properties of plastic containers and their components used to package regulated articles pharmaceuticals, biologics, dietary supplements and devices. Revised on December 1, 2007.

Torque Applicable to Screw-type Containers Closure Diameter, mm 8 10 13 15 20 24 28 30 33

38 Torque, inchpounds 5 6 8 5-9 8-12 10-18 12-21 13-23 15-25 17-26

Closure Diameter, mm 43 48 58 63 66 70 83 89 120

132 Torque, inchpounds 17-27 19-30 23-40 25-43 26-45 28-50 32-65 40-70 55-95 60-95

Multiple-Unit containers for capsules/ tablets If the interior of the container is more than 63 mm in depth, an inert filler or spacer may be placed in the bottom. Desiccant layer NLT 5 cm in depth. Close the containers immediately applying designated torque. Add glass beads to the two control containers. The weight of beads is equal to that of desiccant added to the test containers.

Multiple-Unit containers for capsules/ tablets Record the weight of each container to nearest 0.1 mg, if the volume is <20 mL or to nearest 1 mg, if the volume is 20 mL-200 mL and to nearest 10 mg, if the volume is >200 mL. Store the containers at 232C and at 753% relative humidity for 3361 hours (14 days). Record the weights after 14 days. Multiple-Unit containers for capsules/tablets Find the volume of 5 containers using water.

Calculate the moisture permeability in mg/day/L by the formula: P = (1000/14V)[(Tf-Ti)-(Cf-Ci)] where V is the volume of container in mL, (Tf-Ti) is the difference, in mg, between the final and initial weights of each test container and (Cf-Ci) is the difference, in mg, between the average final and average initial weights of the 2 controls. Multiple-Unit containers for capsules/tablets Containers are considered tight if not more than 1 of the 10 test containers exceeds 100 mg/day/L in moisture permeability, and none

exceeds 200 mg/day/L. Containers are considered well-closed if not more than 1 of the 10 test containers exceeds 2000 mg/day/L in moisture permeability and none exceeds 3000 mg/day/L. Multiple-Unit containers for capsules/tablets (without Closures) Polyethylene container Fit the container with impervious seals obtained by heatsealing the bottles with aluminum foilpolyethylene laminate or other suitable seal. HDPE containers meet the requirements if P exceeds 10 mg/day/L in not more than 1 of the 10 test containers and exceeds 25

mg/day/L in none of them. Multiple-Unit containers for capsules/tablets (without closures) LDPE containers meet the requirements if the P exceeds 20 mg/day/L in not more than 1 of the 10 test containers and exceeds 30 mg/day/ L in none of them. In the case of polypropylene containers, they meet the requirements if P exceeds 15 mg/day/L in not more than 1 of the 10 test containers and exceeds 25 mg/day/L in none of them.

Single-Unit containers for capsules/tablets Desiccant Use pellets weighing ~400 mg each and having a diameter of ~ 8 mm. Dry them at 110C for 1 hour. Method I Seal not fewer than 10 unit-dose containers with 1 pellet in each and seal 10 additional empty containers. Weigh individual test container and weigh the controls as a unit and determine the average weight. Single-Unit containers for capsules/tablets

Store all the containers at 232C and 753%RH. Weigh the samples and record the weights. P= (1/N)[(Wf-Wi)-(Cf-Ci)] where N is the number of days expired in the test period; (Wf-Wi) is the difference, in mg, between the final and initial weights of each test container; and (Cf-Ci) is the difference, in mg, between the average final and average initial weights of the control. Calculate data to 2 significant figures. Single-Unit containers for capsules/tablets If P is less than 5 mg/day and where the controls are observed to reach equilibrium

within 7 days, P is calculated using 7-day test container and control container weights as Wi and Ci, respectively. The test interval is 7days (initial) plus 28 days (a total of 35 days). Single-Unit containers for capsules/tablets Method II This is used for packs that incorporate a number of separately sealed unit-dose containers or blisters. Use not less than 4 packs or not fewer than 10 unit-dose containers and an equal number of empty packs. Store all the containers at 232C and

753%RH. Weigh the samples and record the weights. Single-Unit containers for capsules/tablets P= (1/NX)[(Wf-Wi)-(Cf-Ci)] where N is the number of days expired in the test period, X is the number of separately sealed units per pack; (Wf-Wi) is the difference, in mg, between the final and initial weights of each test pack; and (Cf-Ci) is the difference, in mg, between the average final and average initial weight of control packs.

Single-Unit containers for capsules/tablets Method I Samples are designated as Class A if not more than 1 of 10 containers tested exceeds 0.5 mg/day in moisture permeation rate and none exceeds 1 mg/day. Samples are designated Class B if not more than 1 of 10 containers tested exceeds 5 mg/day and none exceeds 10 mg/day; Samples are designated as Class C if not more than 1 of 10 containers tested exceeds 20 mg/day and none exceeds 40 mg/day. Samples are designated as Class D if the containers tested meet none of the moisture permeation rate requirements.

Single-Unit containers for capsules/tablets Method II Samples are designated Class A if no pack tested exceeds 0.5 mg/day in average blister moisture permeation rate. Samples are designated Class B if no pack tested exceeds 5 mg/day in average blister moisture permeation rate. Samples are designated Class C if no pack tested exceeds 20 mg/day in average blister moisture permeation rate. Samples are designated Class D if the packs tested meet none of the average blister moisture permeation rate requirements. Unit and Multiple-Unit Containers for Liquids

This test measures the liquid water weight loss as a percent of the contents. If container volume is <200 mL, weigh to the nearest 0.1 mg; if the volume is between 200 mL to 1000 mL, weigh to the nearest mg; and if the volume is >1000 mL, weigh to the nearest centigram (10 mg). Unit and Multiple-Unit Containers for Liquids Procedure for testing unopened market containers Select 10 bottles, fit the cap liner and closure. Weigh each bottle. Open the bottles and fill

with water to the overflow capacity. Place the closures and apply designated torque. Store the bottles at 252C and 502%RH. After 1681 hours (7 days) and additional 1681 hours (14 days), weigh the bottles. Unit and Multiple-Unit Containers for Liquids Calculate the water vapor permeation rate in % water weight loss for each bottle Percent/year = (W7-W14)365 x 100/(W7-Wt)7 Where W7 and W14 are weights, in mg, after 7 days and 14 days, respectively; Wt is the tare weight in g; 7 is the test time, in days, after 7-day equilibrium period.

The containers are considered tight if the water weight loss does not exceed 2.5% per year in not more than 1 of the 10 test containers and exceeds 5% per year in none of them. Unit and Multiple-Unit Containers for Liquids Procedure for testing multiple-unit containers under conditions of use Select 10 bottles and closures and record tare weights. Open and close the containers 30 times being careful not to lose liquid filled in the containers in the process. Close the bottles at a designated torque and store

them at 252C and 502% RH. Record weights after 7 and 14 days. Calculate percent weight loss per year using the same formula as above. Light Transmission Test Apparatus Spectrophotometer; adapted for measuring the amount of light transmitted by either transparent or translucent glass or plastic materials Procedure Cut circular sections from two or more areas of the container. Wash and dry each sample taking care not to scratch the surfaces. Mount the specimen on the spectrophotometer and measure the transmittance of the section.

Light Transmission Test The observed light transmission does not exceed the limits given in the following table intended for parenteral use. Size, mL 1 2 5 10 20 50

% Light transmission at any wavelength between 290 and 450 nm 25 20 15 13 12 10 Light Transmission Test The observed light transmission for plastic containers for products intended for oral or

topical administration does not exceed 10% at any wavelength in the range from 290 nm to 450 nm.

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