Use of Dye Tracer Tablets for Leak Detection

Item #/Product Description	Application	Strong Visual (1ppm)	Certified
101100 FLT Industrial Red dye tracers	* Easy to handle, no mess	1 Tablet - 60 gallons	n/a
101101 Fluorescent Yellow/Green	*Quick to dissolve	1 Tablet - 60 gallons
101102 Standard Blue	* Storm & sewer drains	1 Tablet - 20 gallons
101103 Fluorescent FWT Red	*Cooling & plumbing systems	1 Tablet - 60 gallons
101105 FLT Blue	*Septic Inspections	1 Tablet - 20 gallons

* 200 tablets per bottle * Dissolves in 5-8 minutes

Bright Dyes Yellow/Green products are specially formulated versions of Xanthene dye, certified by NSF International to ANSI/NSF Standard 60 for use in drinking water. These dye tracers are the traditional fluorescent water tracing and leak detection material and has been used for labeling studies from the beginning of the century. It may be detected visually, by UV light and by appropriate fluoremetric equipment. Today it is most often used visually. The dye tracers have been used by the military to mark downed pilots for search and rescue operations over large water bodies. Visually the dye tracers appear yellow/green, depending on its concentration and under UV light as lime green.

Based on biochemical oxygen demand (BOD) studies, the dye is biodegradable with 65% of the available oxygen consumed in 7 days. The dye is resistant to absorption on most suspended matter in fresh and salt water. However, compared to Bright Dyes FWT Red products it is significantly less resistant to degradation by sunlight and when used in fluoremetry, stands out much less clearly against background fluorescence. As always the suitability of these products for any specific application should be evaluated by a qualified hydrologist or other industry professional.

General Properties	Tablets	Liquids	Powders
Detectability of active ingredient 1	Visual <100 ppb	Visual <100 ppb	Visual <100 ppb
Maximum absorbance wavelength 2	490/520 nm	490/520 nm	490/520 nm
Appearance	Orange convex 1.6cm diameter	Reddish-brown aqueous solution	Orange fine powder
NSF, max use levels in potable water	6.0 ppb	10.0 ppb	1.0 ppb
Weight	1.35 gms + 0.05	n/a	n/a
Dissolution Time 3	95% < 6 minutes	Immediately	50% < 3 minutes 95% < 6 minutes
Specific Gravity	n/a	1.05 + 0.05 @ 25ƒ C	n/a
Viscosity 4	n/a	1.8 cps	n/a
pH	n/a	8.5 + 0.5 @ 25ƒ C	n/a
Coverage of Products	One Tablet	One Pint Liquid	One Pound Powder
Light Visual (100 ppb)	605 gallons	125,000 gallons	1,200,000 gallons
Strong Visual (1 ppm)	60 gallons	12,500 gallons	120,000 gallons

Caution: These products may cause irritation and/or staining if allowed to come in contact wit the skin. The use of gloves and goggles is recommended when handling this product, as with any other dye tracers or chemical.

To our best knowledge the information and recommendations contained herein are accurate and reliable. However, this information and our recommendations are furnished without warranty, representation, inducement, or license of any kind, including, but not limited to the implied warranties and fitness for a particular use or purpose. Customers are encouraged to conduct their own tests and to read the material safety data sheet carefully before using.

Bright Dyes Industrial Red products are specially formulated versions of Rhodamine B, one of the traditional fluorescent water tracing and leak detection materials. It may be detected visually, by ultraviolet light and by appropriate fluorometric equipment. Visually the dye appears as a bright dark red to magenta, depending on its concentration and under ultraviolet light as a bright orange.

Compared to Bright Dyes FLT Yellow/Green or FWT Red products, Industrial Red is significantly less resistant to absorption on inorganic and organic suspended matter. Thereby limiting its suitability in many applications, particularly where fluorometric detection is needed. This dye has greater resistance to sunlight than FLT Yellow/Green and is equivalent to FWT Red. Industrial Red products should not be used: 1) In drinking water systems, near drinking water intakes or where downstream impingement on a drinking water system might occur, or 2) Where any aquatic ecosystem might be chronically exposed to detectable amounts of the dye. The use and suitability of these products should be evaluated by a qualified hydrologist or other industry professional.

General Properties	Tablets	Liquids	Powders
Detectability of active ingredient 1	Visual <100 ppb	Visual <100 ppb	Visual <100 ppb
Maximum absorbance wavelength 2	550/588 nm	550/588 nm	550/588 nm
Appearance	Dark maroon1.6cm diameter	Deep, dark maroon aqueous solution	Dark green fine powder
Weight	1.15 gms + 0.05	n/a	n/a
Dissolution Time 3	50% < 3 minutes 95% < 6 minutes	Immediately	50% < 3 minutes 95% < 6 minutes
Specific Gravity	n/a	1.05 + 0.05 @ 25ƒ C	n/a
Viscosity 4	n/a	1.8 cps	n/a
pH	n/a	1.5 + 0.5 @ 25ƒ C	n/a
Coverage of Products	One Tablet	One Pint Liquid	One Pound Powder
Light Visual (100 ppb)	604 gallons	125,000 gallons	1,200,000 gallons
Strong Visual (1 ppm)	60 gallons	12,500 gallons	120,000 gallons

Bright Dyes FWT Red products are specially formulated versions of Rhodamine WT dye for convenient use in water tracing and leak detection studies. This bright, fluorescent red dye is certified by NSF International to ANSI/NSF Standard 60 for use in drinking water. It may be detected visually, by ultraviolet light and by appropriate fluorometric equipment. Today it is most often used visually. Visually the dye appears bright pink to red, depending on its concentration and under ultraviolet light as bright orange.

The dye is resistant to absorption on most suspended mater in fresh and salt water. Compared to Bright Dyes FLT Yellow/Green products it is significantly more resistant to degradation by sunlight and when used in fluorometry, stands out much more clearly against background fluorescence. As always the use and suitability of these products for any specific application should be evaluated by a qualified hydrologist or other industry professional.

General Properties	Tablets	Liquids	Powders
Detectability of active ingredient 1	Visual <100 ppb	Visual <100 ppb	Visual <100 ppb
Maximum absorbance wavelength 2	550/588 nm	550/588 nm	550/588 nm
Appearance	Dark red convex 1.6cm diameter	Clear, dark red aqueous solution	Dark red fine powder
NSF, max use levels in potable water	0.3 ppb	0.8 ppb	0.1 ppb
Weight	1.05 gms + 0.05	n/a	n/a
Dissolution Time 3	50% < 3 minutes 95% < 6 minutes	Immediately	50% < 3 minutes 95% < 6 minutes
Specific Gravity	n/a	1.03 + 0.05 @ 25ƒ C	n/a
Viscosity 4	n/a	1.8 cps	n/a
pH	n/a	8.7 + 0.5 @ 25ƒ C	n/a
Coverage of Products	One Tablet	One Pint Liquid (FWT Red 25)	One Pound Powder
Light Visual (100 ppb)	604 gallons	62,500 gallons	604,000 gallons
Strong Visual (1 ppm)	60 gallons	6,250 gallons	60,400 gallons

Bright Dyes Standard Blue products are specially formulated versions of the dye Acid Blue 9. This dye is used for visual detection only and cannot be seen under ultraviolet light or detected by fluorometry. However, when used visually, its color is often thought to be more acceptable to public view than the fluorescing red or yellow green Bright Dyes products. In this respect, it is sometimes used in fountains, ponds and streams for decorative effect. Visually, the dye appears as aqua to royal blue depending on its concentration and activity of the water.

Based on biochemical oxygen demand (BOD) studies, the dye is biodegradable with 77% of the available oxygen consumed in 7 days. Bright Dyes Standard Blue products have been certified by NSF International to the ANSI/NSF Standard 60 for use in drinking water at specific levels. As always the suitability of these products for any specific application should be evaluated by a qualified hydrologist or other industry professional.

General Properties	Tablets	Liquids	Powders
Detectability of active ingredient 1	Visual <100 ppb	Visual <100 ppb	Visual <100 ppb
Maximum absorbance wavelength 2	630 nm	630 nm	630 nm
Appearance	Lt. Blue speckled 1.6cm diameter	Clear, dark blue aqueous solution	Deep violet fine powder
NSF, max use levels in potable water	2000 ppb	1200 ppb	100 ppb
Weight	1.25 gms + 0.05	n/a	n/a
Dissolution Time 3	50% < 3 minutes 95% < 6 minutes	Immediately	50% < 3 minutes 95% < 6 minutes
Specific Gravity	n/a	1.04 + 0.03 @ 25ƒ C	n/a
Viscosity 4	n/a	1.8 cps	n/a
pH	n/a	5.2 + 1.0 @ 25ƒ C	n/a
Coverage of Products	One Tablet	One Pint Liquid	One Pound Powder
Light Visual (100 ppb)	200 gallons	152,000 gallons	1,200,000 gallons
Strong Visual (1 ppm)	20 gallons	125,000 gallons	120,000 gallons

Bright Dyes FLT Blue products are specially formulated versions of food grade dye FD & C Blue. Bright Dyes FLT Blue products have been certified by NSF International to the ANSI/NSF Standard 60 for use in drinking water. This dye is used for visual detection only and cannot be seen under ultraviolet light or detected by fluorometry. However, when used visually, its color is often thought to be more acceptable to public view than the fluorescing red or yellow green Bright Dyes products. In this respect, it is sometimes used in fountains, ponds and streams for decorative effect. Visually, the dye appears as aqua to royal blue depending on its concentration and activity of the water.

Based on biochemical oxygen demand (BOD) studies, the dye is biodegradable with 77% of the available oxygen consumed in 7 days. As always the suitability of these products for any specific application should be evaluated by a qualified hydrologist or other industry professional.

General Properties	Tablets	Liquids	Powders
Detectability of active ingredient 1	Visual <100 ppb	Visual <100 ppb	Visual <100 ppb
Maximum absorbance wavelength 2	630 nm	630 nm	630 nm
Appearance	Lt. Blue speckled 1.6cm diameter	Clear, dark blue aqueous solution	Deep violet fine powder
NSF, max use levels in potable water	2000 ppb	1200 ppb	100 ppb
Weight	1.25 gms + 0.05	n/a	n/a
Dissolution Time 3	50% < 3 minutes 95% < 6 minutes	Immediately	50% < 3 minutes 95% < 6 minutes
Specific Gravity	n/a	1.04 + 0.03 @ 25ƒ C	n/a
Viscosity 4	n/a	1.8 cps	n/a
pH	n/a	5.2 + 1.0 @ 25ƒ C	n/a
Coverage of Products	One Tablet	One Pint Liquid	One Pound Powder
Light Visual (100 ppb)	200 gallons	130,000 gallons	1,240,000 gallons
Strong Visual (1 ppm)	20 gallons	13,000 gallons	124,000 gallons

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