K Number
K961455
Device Name
MEDSHIELD/AEROCHAMBER
Manufacturer
Date Cleared
1996-07-25

(100 days)

Product Code
Regulation Number
868.5640
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
The DHD MedShield is a single-patient-use device. The Intended Use of the device is to reduce the taste effect of Metered Dose Inhaler (MDI) drugs by covering the tongue in the taste sensor area.
Device Description
The MedShield product reduces drug deposition in the tongue when used in conjunction with metered dose inhaler (MDI) medications. The device attaches to an MDI elbow and shields the tongue of the user from the medication spray. Drug that deposits on the device would otherwise be on the users tongue. Based on this, the taste effect of the medications is reduced. This simple device includes two different features. 1. The patient end of the device covers the tongue. The patient end may vary to maximize the comfort of a wide range of users. 2. The elbow end of the device includes a universal clip, which attaches the device to all MDI elbows. To satisfy the preferences of various customers, the force required to separate (or attach) the device to various elbows can be modified by adjusting the clip or modifying the taper around the clip. The MedShield product has been designed to conform with ASTM F963-92, "Standard Consumer Safety Specification on Toy Safety, under Section 4.6, Small Objects, specifically 4.6.2, Mouth-Actuated Toys, and CFR 16-1511.1, "Requirements For Pacifically, 1511.5 Structural integrity tests for Small Parts, 1511.5 (d), to ensure that the device does not present a choke hazard. The MedShield is designed for single patient use. Patients may be given the product for use either in a hospital or home environment for extended time periods. Recommendations for cleaning, in cases of extended time, are included in the instructions for use.
More Information

The Micro Spacer, and the AeroChamber

Not Found

No
The device description and intended use focus on a simple mechanical shield to reduce taste effect, with no mention of computational analysis, learning, or adaptive behavior.

No
Explanation: The device is intended to reduce the taste effect of MDI drugs by covering the tongue, not to treat or diagnose a disease or condition. It acts as a shield to prevent drug deposition on the tongue.

No

The device's intended use is to reduce the taste effect of Metered Dose Inhaler (MDI) drugs by covering the tongue. It does not analyze, measure, or interpret any physiological data to diagnose a medical condition.

No

The device description clearly describes a physical, single-patient-use device that attaches to an MDI elbow and shields the tongue. It discusses physical features like a universal clip and patient end variations, and mentions testing for structural integrity and choke hazards, all indicative of a hardware device.

Based on the provided information, the DHD MedShield is not an IVD (In Vitro Diagnostic) device.

Here's why:

  • Intended Use: The intended use is to reduce the taste effect of MDI drugs by covering the tongue. This is a physical interaction with the patient's body to alter a sensory experience, not to diagnose a condition or provide information about a patient's health status based on in vitro examination of specimens.
  • Device Description: The description focuses on the physical mechanism of shielding the tongue from medication spray and attaching to an MDI elbow. It describes a physical barrier and attachment mechanism, not a method for analyzing biological samples.
  • Lack of IVD Characteristics: There is no mention of analyzing biological specimens (blood, urine, tissue, etc.), detecting analytes, or providing diagnostic information. The device's function is purely mechanical and related to drug delivery and taste perception.

Therefore, the DHD MedShield falls under the category of a medical device, but not specifically an In Vitro Diagnostic device.

N/A

Intended Use / Indications for Use

The DHD MedShield is a single-patient-use device. The Intended Use of the device is to reduce the taste effect of Metered Dose Inhaler (MDI) drugs by covering the tongue in the taste sensor area.

Product codes

Not Found

Device Description

The MedShield product reduces drug deposition in the tongue when used in conjunction with metered dose inhaler (MDI) medications. The device attaches to an MDI elbow and shields the tongue of the user from the medication spray. Drug that deposits on the device would otherwise be on the users tongue. Based on this, the taste effect of the medications is reduced.

This simple device includes two different features.

  1. The patient end of the device covers the tongue. The patient end may vary to maximize the comfort of a wide range of users.
  2. The elbow end of the device includes a universal clip, which attaches the device to all MDI elbows. To satisfy the preferences of various customers, the force required to separate (or attach) the device to various elbows can be modified by adjusting the clip or modifying the taper around the clip.

The MedShield product has been designed to conform with ASTM F963-92, "Standard Consumer Safety Specification on Toy Safety, under Section 4.6, Small Objects, specifically 4.6.2, Mouth-Actuated Toys, and CFR 16-1511.1, "Requirements For Pacifically, 1511.5 Structural integrity tests for Small Parts, 1511.5 (d), to ensure that the device does not present a choke hazard.

The MedShield is designed for single patient use. Patients may be given the product for use either in a hospital or home environment for extended time periods. Recommendations for cleaning, in cases of extended time, are included in the instructions for use.
As a prescription item, the labeling of the device contains the required caution statement: "Caution: Federal (USA) law restricts this device to sale by or on the order of a physician."

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

Not Found

Anatomical Site

tongue

Indicated Patient Age Range

Not Found

Intended User / Care Setting

hospital or home environment

Description of the training set, sample size, data source, and annotation protocol

Not Found

Description of the test set, sample size, data source, and annotation protocol

Not Found

Summary of Performance Studies (study type, sample size, AUC, MRMC, standalone performance, key results)

Comparative Performance Testing: In each instance tested, the medication deposited on the MedShield was less than that with other devices are cylindrical providing significantly more surface area to collect medication. The lower values for MedShield indicate that only medication that would be deposited on the tongue is affected.

Nonclinical tests included:
Chemical Resistance: The plastic selected for the MedShield is an Acetal resin - Celcon M90. This material has been tested by the manufacturer (Hoeschet Celanese Corp.-Attachment 1) for the effect of various chemicals on physical properties (see tables provided). The three sodium compounds listed are found in dishwasher powders. The Freon, Alcohol and Oleic Acid compounds are found in MDI canisters.
Cleaning Test: MedShield units were soaked for 5 days in alcohol, dishwashing liquid and vinegar with no physical or cosmetic degradation noted. Units were subjected to 5 cycles of a standard dishwasher with no physical or cosmetic degradation noted. These are considered to be typical cleaning agents/conditions available to users.
Drop Test: MedShield units were dropped 10 times from a height of 1 meter onto a tile covered cement floor without breakage.

Key Metrics (Sensitivity, Specificity, PPV, NPV, etc.)

Not Found

Predicate Device(s)

The Micro Spacer and the AeroChamber

Reference Device(s)

Not Found

Predetermined Change Control Plan (PCCP) - All Relevant Information

Not Found

§ 868.5640 Medicinal nonventilatory nebulizer (atomizer).

(a)
Identification. A medicinal nonventilatory nebulizer (atomizer) is a device that is intended to spray liquid medication in aerosol form into the air that a patient will breathe.(b)
Classification. Class I (general controls). The device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to § 868.9.

0

K961455

JUL 25 1996

510(k) SUMMARY As Required by 807.92(c)

DHD Diemolding Healthcare Division l. Submitter: 125 Rasbach Street Canastota, NY 13032

Phone: 315-697-2221 315-697-8083 Fax:

Contact:

Jean Wallace, Manager, Regulatory Affairs

Device Name 2.

• Trade Name-MedShield
• Common name-Tongue Cover or Guard
• Classification name-Classification - Nebulizer, Direct patient Interface

The Micro Spacer and the AeroChamber, designed for use with Metered-Dose Inhalers, are the 3. devices to which we are claiming equivalence.

Device Description 4.

The MedShield product reduces drug deposition in the tongue when used in conjunction with metered dose inhaler (MDI) medications. The device attaches to an MDI elbow and shields the tongue of the user from the medication spray. Drug that deposits on the device would otherwise be on the users tongue. Based on this, the taste effect of the medications is reduced.

This simple device includes two different features.

  1. The patient end of the device covers the tongue. The patient end may vary to maximize the comfort of a wide range of users.

  2. The elbow end of the device includes a universal clip, which attaches the device to all MDI elbows. To satisfy the preferences of various customers, the force required to separate (or attach) the device to various elbows can be modified by adjusting the clip or modifying the taper around the clip.

The MedShield product has been designed to conform with ASTM F963-92, "Standard Consumer Safety Specification on Toy Safety, under Section 4.6, Small Objects, specifically 4.6.2, Mouth-Actuated Toys, and CFR 16-1511.1, "Requirements For Pacifically, 1511.5 Structural integrity tests for Small Parts, 1511.5 (d), to ensure that the device does not present a choke hazard.

The MedShield is designed for single patient use. Patients may be given the product for use either in a hospital or home environment for extended time periods. Recommendations for cleaning, in cases of extended time, are included in the instructions for use.

1

As a prescription item, the labeling of the device contains the required caution statement: "Caution: Federal (USA) law restricts this device to sale by or on the order of a physician."

5. Intended Use

The DHD MedShield is a single-patient-use device. The Intended Use of the device is to reduce the taste effect of Metered Dose Inhaler (MDI) drugs by covering the tongue in the taste sensor area.

Technological Information 6.

MedShield, Microspacer and Aerochamber are used by attaching to a Metered Dose Inhaler (MDI) 6.1 elbow, placing part of the device in the mouth and administering the MDI. After activation of the MDI the user inhales the medication while keeping the device in the mouth.

MedShield attaches to the patient end of the MDI elbow via an integral clip. The patient end of the 6.2 MedShield masks the area of the tongue that it covers and medication that would have been deposited on that section of the tongue, is deposited on the MedShield.

Aerochamber attaches to the patient end of the MDI elbow via a flexible thermoplastic opening which 6.3 surrounds the outer diameter of the elbow patient end. A chamber is affixed to the opening which terminates in a valved mouthpiece at the patient end. After activation of the MDI, large particles impact and deposit within the walls and valving thereby reducing the amount released into the oral cavity of the patient.

Microspacer attaches to the patient end of the MDI elbow via a conical flexible opening. A small 6.4 (relative to Aerochamber) chamber is terminated by plastic grating at the patient end. After activation of the MDI, larger particles impact and deposit on the walls and grate reducing the amount released in the oral cavity of the patient.

6.5 Features and Specifications

MedShield is one piece and is positioned by on top of the patient's tongue. 6.5.1

Microspacer and Aerochamber have a patient end that serves as mouthpiece. The patient's lips 6.5.2 surround the mouthpiece and the patient then inhales through the device.

MedShield is opaque and approximately 1.5 inches by 2.5 inches, rectangular. 6.5.3

Microspacer is opaque and approximately a 1.75 inch long cylinder with a tapered diameter ranging 6.5.4 from 1.0 to 0.75 inches. The patient end of the cylinder contains an integral grate.

Aerochamber is opaque at each end and transparent in the center. The device consists of a 4.5 inch 6.5.5 long cylinder (1.75 inch inner diameter) with a 1.25 inch x 1.25 inch x 0.75 inch mouthpiece at the patient end and a flexible elliptical opening in which the MDI elbow is inserted.

A brief discussion of nonclinical tests conducted on this device and how the results support a 7. determination of substantial equivalent follows:

7.1 Environmental testing was completed to determine the effects of:

Chemical Resistance

The plastic selected for the MedShield is an Acetal resin - Celcon M90. This material has been tested by the manufacturer (Hoeschet Celanese Corp.-Attachment 1) for the effect of various chemicals on physical properties. The three sodium compounds listed are found in dishwasher powders. The Freon, Alcohol and Oleic Acid compounds are found in MDI canisters.

2

CHEMICALRESISTANCECHEMICALRESISTANCE
AlcoholsExcellentFreonExcellent
Ethyl AlcoholExcellentOleic AcidGood
Methyl AlcoholExcellentSodium SulfateExcellent
Propyl AlcoholExcellentSodium CarbonateGood
Trisodium PhosphateExcellent

Cleaning Test: MedShield units were soaked for 5 days in alcohol, dishwashing liquid and vinegar with no physical or cosmetic degradation noted. Units were subjected to 5 cycles of a standard dishwasher with no physical or cosmetic degradation noted. These are considered to be typical cleaning agents/conditions available to users.

Drop Test: MedShield units were dropped 10 times from a height of 1 meter onto a tile covered cement floor without breakage.

Comparative Performance Testing: In each instance tested, the medication deposited on the 7.2 MedShield was less than that with other devices are cylindrical providing significantly more surface area to collect medication. The lower values for MedShield indicate that only medication that would be deposited on the tongue is affected.

Based on the foregoing information, DHD believes the MedShield performs substantially equivalent to the predicate device(s) and in the opinion of DHD it is substantially equivalent to the predicate device(s) and does not adversely affect safety and effectiveness compared to the predicate device.

3

510(k) Premarket Notification - MedShield Environmental Testing

CHEMICAL RESISTANCE

The plastic selected for the MedShield is an Acetal resin - Celcon M90. This material has been tested by the manufacturer (Hoeschet Celanese Corp .- Attachment 1) for the effect of various chemicals on physical properties. The three sodium compounds listed are found in dishwasher powders. The Freon, Alcohol and Oleic Acid compounds are found in MDI canisters.

CHEMICALRESISTANCECHEMICALRESISTANCE
AlcoholsExcellentFreonExcellent
Ethyl AlcoholExcellentOleic AcidGood
Methyl AlcoholExcellentSodium SulfateExcellent
Propyl AlcoholExcellentSodium CarbonateGood
Trisodium PhosphateExcellent

CLEANING/DROP TESTING

Test Procedure per Sample Request # 432-96-2

CLEANING:

MedShield units were soaked for 5 days in alcohol, dishwashing liquid and vinegar with no physical or cosmetic degradation noted. Units were subjected to 5 cycles of a standard dishwasher with no physical or cosmetic degradation noted. These are considered to be typical cleaning agents/conditions available to users.

DROP:

MedShield units were dropped 10 times from a height of 1 meter onto a tile covered cement floor without breakage.

Attachment No. 1 Chemical Resistance of "Celcon" published by Hoeschet Celanese Corporation

63

4

TABLE I

CHEMICAL RESISTANCE OF "CELCON" ACETAL COPOLYMER RESIN

CODE: - - E-Excellent, G-Good, F-Fair, NG-No Good

| CHEMICAL | SUITABILITY FOR USE
WITH "CELCON" | |
|-----------------------------------------|--------------------------------------|-------|
| | 72°F | 140°F |
| Acetaldehyde | E | G |
| Acetic Acid - 20% | F | NG |
| Acetic Acid - 80% | NG | NG |
| Acetic Anhydride | G | NG |
| Acetone | G | G |
| Adipic Acid | G | F |
| Alcohols | E | E |
| Alcohol-Amyl | E | E |
| Alcohol-Butyl | E | E |
| Aliphatic Hydrocarbons | E | E |
| Aluminum Chloride | F | NG |
| Aluminum Fluoride | F | F |
| Aluminum Hydroxide | G | F |
| Aluminum Oxychloride | NG | NG |
| Aluminum Nitrate | F | NG |
| Aluminum Sulfate | F | NG |
| Alums | G | F |
| Ammonia Gas-Dry | E | E |
| Ammonia Liquid | E | E |
| Ammonium Bifluoride | NG | NG |
| Ammonium Chloride | G | F |
| Ammonium Carbonate | E | E |
| Ammonium Fluoride 25% | G | F |
| Ammonium Hydroxide (all concentrations) | E | E |
| Ammonium Metaphosphate | E | E |
| CHEMICAL | 72°F | |
| Ammonium Thiocyanate | G | |
| Ammonium Nitrate | G | |
| Ammonium Phosphate | G | |
| Ammonium Sulfate | G | |
| Ammonium Persulfate | G | |
| Amyl Acetate | E | |
| Amyl Chloride | E | |
| Aniline | G | |
| Anthraquinone | E | |
| Anthraquinonesulfonic Acid | NG | |
| Antimony Trichloride | NG | |
| Aqua Regia (Dilute) | NG | |
| Aqua Regia (Concentrated) | NG | |
| Aromatic Hydrocarbons | E | |
| Arsenic Acid | NG | |
| Barium Carbonate | E | |
| Barium Chloride | E | |
| Barium Hydroxide | E | |
| Barium Sulfate | E | |
| Barium Sulfide | E | |
| Beer | E | |
| Beet Sugar Liquors | E | |
| Benzaldehyde | E | |
| Benzene or Benzol | E | |
| Benzoic Acid | G | |
| Bismuth Carbonate | E | |
| Bleach, Laundry 15% Active Cl2 | NG | |
| Borax | E | |
| Boric Acid | E | |
| Brine Solutions | E | |
| Bromine Liquid | NG | |
| Bromine Water | NG | |
| Butane | E | |
| Butadiene | E | |
| Butyl Acetate | E | |
| Butyl Alcohol | E | |

Attachment No.1
64

5

0 L

. '

6

  • 3 -

CHEMICAL

Calcium Bisulfite Calcium Carbonate Calcium Chlorate Calcium Chloride Calcium Hydroxide Calcium Hypochlorite Calcium Nitrate Calcium Sulfate Carbon Dioxide Carbon Dioxide - Dry Carbon Bisulfide Carbon Monoxide Carbon Tetrachloride Carbonic Acid Castor Oil Caustic Soda (all concentrations) Caustic Potash (all concentrations) Cellosolve Chloracetic Acid Chloral Hydrate Chloric Acid 20% Chlorine Gas (Dry) Chlorine Gas (Wet) Chlorine Water Chlorobenzene (Mono) Chloroform Chlorosulfonic Acid Chrome Alum Chromic Acid (all concentrations) Citric Acid Cocomit Oil Copper Chloride Copper Cyanide

72°F

F

E

E

II

ાં પે

പ്ര

દિવ

E

ದ್ರದ

E

E

E

്ച് പ്ര

E

E

E

G

NG

NG

NG

NG

द्ध

E

NG

C

NG

G

E

G

G

NG

NG

11

7

  • 4 -

ਾ ਕੇ

CHEMICAL72°F
Copper FluorideG
Copper NitrateE
Copper SulfateE
Cottonseed OilE
CresolF
Cresylic Acid - 50%G
Cyanide Plating SolutionsF
CyclohexanoneE
Disodium PhosphateG
Distilled WaterE
DextrinE
DextroseE
Diazo SaltsF
Diglycolic AcidG
DimethylamineNG
DioctylphthalateE
EthersE
Ethyl AcetateE
Ethyl AcrylateG
Ethyl AlcoholE
Ethyl ChlorideE
Ethyl EtherE
Ethylene BromideE
Ethylene ChlorhydrinG
Ethylene DichlorideE
Ethylene GlycolE

.

8

.

CHEMICAL72°F140
Fatty AcidsG
Ferric ChlorideG
Ferric NitrateG
Ferric SulfateG
Ferrous ChlorideG
Ferrous SulfateG
Fluoborate SaltsG
Fluobroic AcidNG
Fluosilicic Acid and SaltsG
FormaldehydeE
Formic AcidNG
FreonE
FructoseE
Fruit Juices, PulpE
Gallic AcidG
Gasoline - SourE
Gasoline - RefinedE
Glycolic AcidF
GlucoseE
Glycerine or ClycerolE
GlycolsE
HeptaneE
HexaneE
Hydrobromic AcidNG
Hydrochloric Acid (all concentrations)NG
Hydrocyanic Acid - Hydrogen CyanideE
Hydrofluoric AcidNG
HydrogenE
CHEMICAL72°F
Hydrogen Peroxide (Dilute)NG
Hydrogen Peroxide (Concentrated)NG
Hydrogen Sulfide - DryG
Hydrogen Sulfide - Wet Aqueous Sol.F
HydroquinoneE
Hydroxylamine Sulfate.G
Hypochlorous AcidNG
Iodine and SolutionsNG
KeroseneE
Lacquer SolventsE
Lactic AcidG
Lard OilE
Lauric AcidG
Lauryl ChlorideE
Lead AcetateE
Linoleic AcidG
Linseed OilE
LiqueursE

9

  • 6 -

ﺮ ﺍ

"

.

:

.

10

-7-

广

CHEMICAL72°F
Magnesium CarbonateE
Magnesium ChlorideE
Magnesium HydroxideE
Magnesium NitrateE
Magnesium SulfateE
Malic AcidE
Maleic AcidG
Mercuric ChlorideG
Mercuric CyanideE
Mercurous NitrateE
MercuryE
Methyl AlcoholE
Methyl ChlorideE
Methyl Ethyl KetoneE
Methyl SulfateG
Methyl Sulfuric AcidG
Methylene ChlorideNG
MilkE
Mineral OilsE
Mixed Acid - 40% Sulfuric, 15% NitricE
MolassesNG
Mineral SpiritsE
NapthaE
Natural GasE
Nickel ChlorideF
Nickel NitrateF
Nickel SulfateG
NicotineG
Nicotinic AcidG
Nitric Acid - Dilute (under 25%)NG
Nitric Acid - Conc. (42° Be.)NG
Nitric Acid - FumingNG
NitrobenzeneE

:

11

| 8
1

t
-------------
CHEMICAL72°F140
Oils & FatsEE
Oleic AcidGF
OleumNGNG
Oxalic AcidFN
OxygenGN
OzoneNGN
Palmitic AcidG
PerchloroethyleneE
Petroleum - CrudeF
PhenolG
PhenylhydrazineG
PhosgeneNG
Phosphoric Acid - DiluteNG
Phosphoric Acid - Medium Conc.NG
Phosphoric Acid - ConcentratedNG
Phosphorous TrichlorideNG
Photographic SolutionsF
Phthalic AcidG
Picric AcidNG
Plating SolutionsF
Potassium BicarbonateG
Potassium BichromateNG
Potassium BorateG
Potassium BromateF
Potassium BromideE
Potassium CarbonateG
Potassium ChlorideE

:

12

F

ﺎﻳﺎ

CHEMICAL72°F
Potassium DichromateF
Potassium FerricyanideF
Potassium FerrocyanideF
Potassium FluorideE
Potassium Hydroxide (all concentrations)E
Potassium IodideG
Potassium NitrateG
Potassium PerborateF
Potassium PerchlorateNG
Potassium PermanganateNG
Potassium PersulfateNG
Potassium SulfateE
PropaneE
Propyl AlcoholE
Propylene DichlorideE
  • 9 -

Rayon Coagulating Bath

.

ﻫﺪﻓﻪ ﺍﻟﻤﺴﺘﻘﻠﺔ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ

Sea WaterE
Selenic AcidNG
Silicic AcidE
Silver CyanideF
Silver NitrateF
Silver Plating SolutionsF
Soap SolutionsE
Sodium AcetateE
Sodium BenzoateG

13

  • 10 -
CHEMICAL
Sodium BicarbonateG
Sodium BisulfateG
Sodium. BisulfiteG
Sodium BromideG
Sodium CarbonateG
Sodium ChlorateE
Sodium ChlorideG
Sodium CyanideF
Sodium DichromateG
Sodium FerricyanideG
Sodium FerrocyanideE
Sodium FluorideE
Sodium Hydroxide (all concentrations)F
Sodium HypochloriteG
Sodium NitrateG
Sodium NitriteG
Sodium SilicateE
Sodium SulfateE
Sodium SulfideE
Sodium SulfiteG
Sodium ThiosulfateE
Sour Crude OilG
Stannic ChlorideG
Stannous ChlorideG
Stearic AcidG
Sugar SolutionsE
Sulfur Dioxide - DryE
Sulfur Dioxide - WetG
Sulfuric Acid - Dilute (Under 25%)NG
Sulfuric Acid - Med. Conc. (25-80%)NG
Sulfuric Acid - Conc. (over 80%)NG
Sulfurous AcidNG

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CHEMICAL72° F140°
Tannic AcidG
Tanning LiquorsG
Tartaric AcidsG
Tetraethyl Leadવિ
Thionyl Chloride
Tin Salts
Toluene or Toluol
Trichloroethylene
Triethanolamineមា ប្រជាជាបានប្រជាជាតិ នៅក្រោយប្រជាជាតិ នៅ ប្រជាជនជ្រោះ ប្រជាជនជ្រោះ ប្រជាជនជ្រោះ ប្រជាជនជ្រោះ និង ប្រាសាទនេះ និង ប្រាសាទនេះ និង ប្រាសាទនេះ និង ប្រជាជនជ្រាប់ និង ប្រាសាទនេះ
Triethylamine Trisodium Phosphate
Turpentine
Urea
Urineામ
E
VinegarE
Water - Acid Mine Water
Water - Demineralized್ಕ
E
Water - Fresh
Water - Saltದು ಧರ್ಮ ಧ್ರಿಗಳು ಧಾರ್ಮಿಸಿದ ಧರ್ಮಿಸಿದ ಧರ್ಮಿಸಿದ ಧರ್ಮಿಸಿದ ಧರ್ಮಿಸಿದ ಧರ್ಮಿಸಿದ ಧರ್ಮಿಸಿದ ಧರಿ ಧಾರ್ಮಿಸಿದ ಧರ್ಮಿಸಿದ ಧರ್ಮಿಸಿದ ಧರ್ಮಿಸಿದ ಧರ್ಮಿಸಿದ ಧರ್ಮಿಸಿದ ಧರ್ಮಿಸಿದ ಧರ್ಮಿಸಿ
Whiskey
White LiquorE

:

M

15

- 12 -

CHEMICAL72°F140°F
Xylene or XylolEE
Zinc ChlorideFF
Zinc SulfateFF

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