PDA

View Full Version : HOW LONG SHOULD AN NPA BOTTLE LAST?



**DONOTDELETE**
11-22-2002, 09:33 PM
I don\'t know if I am doing something wrong but I prepared JB#1three times at the ratio of 7:3 (APC-NPA respectively) using a calibrated syringe and I already finished the content of the bottle. How long does the bottle last you???
It seems that if I continue preparing JB#1 I will need to buy a new NPA bottle at least once a week. Isn\'t that too often?

Please advise.

Thanks.
Jordi

druid
11-23-2002, 04:01 PM
you\'re probably using too much JB#1, and therefore going through your supply more quickly.

franki
11-23-2002, 05:44 PM
\"I will need to buy a new NPA bottle at least once a week. Isn\'t that too often?\"

That sounds pretty crazy. Even if you would use NPA (or JB1) every day, one bottle should last AT LEAST one month and probably as much as two to three months. So apparently you are Overdosing the JB1 or otherwise wasting it. Hope I helped.

**DONOTDELETE**
11-23-2002, 06:13 PM
I need your help please. How come my NPA bottle ran out in about a week? I prepare JB#1 at the ratio of 7:3 (APC:NPA) with a syringe. Then I tranfer it to the atomizer. I put two or three sprays of NPA every day. The content of the 7:3 in the atomizer gives me about 9 sprays only. What is wrong? How can you make it last over a month?? I don\'t understand.
Please help!!!

krtel
11-23-2002, 06:26 PM
Wow thats interesting. Your definately doing something wrong, because a bottle of NPA lasts a LONG time.

- Krish

**DONOTDELETE**
11-23-2002, 06:34 PM
Please help me figure out what I am doing wrong. A bottle of NPA has 5 ml, right.When I prepare the ratio 7:3 with the syringe the three parts of NPA takes about half a ml from the syringe. Isn\'t that right??????

franki
11-23-2002, 06:36 PM
That depends on how much APC you use, of course.

How much JB1 are you putting on?

**DONOTDELETE**
11-23-2002, 06:39 PM
I put on two or three sprays from the atomizer. The 7 parts of APC and the 3 parts of NPA lasts about 9 sprays from the atomizer. That means I use them in about three days. Am I ODing?????

krtel
11-23-2002, 06:43 PM
1/2 ml just for 3 drops? Sounds like you found your problem then. At that rate, 30 drops would empty your 5 ml bottle. I remember when I made a large batch of JB#1, I used about 40 drops of NPA, and it emptied a very small amount of the bottle, maybe a ml or two, I was using eye droppers though. Maybe your using your syringe wrong?

- Krish

franki
11-23-2002, 06:44 PM
You are saying you use approx. 0,5 ml of NPA in three days. Yes. that\'s an OD. I don\'t know what kind of atomizer you use, but it sounds like you could do with only one spray from that thing. You can also put the APC:NPA ratio down to 8:2 or 9:1.

krtel
11-23-2002, 06:49 PM
I\'m curious on how old are you and if you\'ve had any success with JB#1. Thanks.

- Krish

**DONOTDELETE**
11-23-2002, 06:51 PM
I am using an atomizer from Bruce. The syringe is not giving me drops but parts.I fill the syringe 7 parts of APC and 3 of NPA. Each part is 1/5 of 1 ml. What am I doing wrong????

franki
11-23-2002, 06:53 PM
What are you doing wrong:

1. You put on too much of JB1
2. You mix it at 3:7. I would start out with 9:1. How old are you?

**DONOTDELETE**
11-23-2002, 06:56 PM
I\'m 35. According to the cookbook, the best ratio is 7:3 for JB#1.

**DONOTDELETE**
11-23-2002, 07:00 PM
Each part of the syringe is 0.2 ml. Therefore I use 0.6 ml of NPA to make the JB#1 batch that lasts me about 9 sprays.
Is that ok?

franki
11-23-2002, 07:01 PM
7:3 is a bit on the high side. You should be able to see (better) results at lower ratio\'s.

**DONOTDELETE**
11-23-2002, 07:08 PM
I just fill the atomizer with the JB#1 badge I prepare(7 parts of APC and 3 of NPA). Each part is 0.2 ml. This badge is consumed in 9 sprays. Is that wrong?

franki
11-23-2002, 07:10 PM
The only thing I know for sure is that you are OD-ing.

**DONOTDELETE**
11-23-2002, 07:14 PM
but regardless of the ratio, is it normal that one part is 0.2 ml?
7:3 is suggested in the cook book, which would be 1.4 ml:0.6 ml per batch, right?

franki
11-23-2002, 07:14 PM
yes

**DONOTDELETE**
11-23-2002, 07:16 PM
so, I don\'t understand why I consumed an NPA bottle in just one week.

franki
11-23-2002, 07:18 PM
Quote from me:

\"What are you doing wrong:

1. You put on too much of JB1
2. You mix it at 3:7. I would start out with 1:9. \"

**DONOTDELETE**
11-23-2002, 07:24 PM
have you had hits at 9:1 ratio? What do you use to count parts? Is the drop ratio of the NPA bottle the same as an eye dropper ratio? How many sprays does this 9:1 ratio give you?
Is it normal that a new NPA bottle is just 3/4 full?

krtel
11-23-2002, 07:24 PM
I told you what you were doing wrong and so did franki. You can take his advice or mine, either way, you end up doing the same thing, which is using less JB#1. If you *insist* that you have to use 2-3 sprays of JB#1, then use my advice, which was to use eye droppers (which you can get a pack, with 2 droppers for $1.30 from Walmart.). IMO franki\'s advice is the better one.

- Krish

**DONOTDELETE**
11-23-2002, 07:35 PM
Krish, what was your advice??

krtel
11-23-2002, 07:37 PM
To use an eye dropper. Taken from my earlier post:

\"1/2 ml just for 3 drops? Sounds like you found your problem then. At that rate, 30 drops would empty your 5 ml bottle. I remember when I made a large batch of JB#1, I used about 40 drops of NPA, and it emptied a very small amount of the bottle, maybe a ml or two, I was using eye droppers though. Maybe your using your syringe wrong?\"

**DONOTDELETE**
11-23-2002, 07:41 PM
have you had hits at 9:1 ratio? What do you use to count parts? Is the drop ratio of the NPA bottle the same as an eye dropper ratio? How many sprays does this 9:1 ratio give you?
Is it normal that a new NPA bottle is just 3/4 full?

**DONOTDELETE**
11-23-2002, 08:17 PM
If you are putting 0.6 ml npa and 1.4 ml apc that\'s 2 ml in your atomizer which is about 1/5th full with that much fluid in it. So if you are getting 9 sprays 1/5th full you would get about 45 sprays if the atomizer was full. 5ml npa plus 11 2/3rds ml apc = 16.667 ml of your 3:7 npa:apc mix which would be what you would get from mixing the whole bottle of npa. So going by your figures on sprays that 5 ml bottle mixed in the apc at the ratio you talked about would yield 75 sprays, and at 2-3 sprays per day would give you 25-37.5 days of use.

**DONOTDELETE**
11-23-2002, 08:33 PM
How do you come up with the 75 sprays per atomizer????

**DONOTDELETE**
11-23-2002, 08:47 PM
Ok, I understand now. I did the math but the fact is that my bottle of NPA is empty after one week of use. Maybe it didn\'t contain 5 ml to start with. I recall seeing it 3/4 full before opening it. Is it normal?

**DONOTDELETE**
11-23-2002, 08:55 PM
You said you were putting 0.6 ml npa and 1.4 ml apc into the atomizer which equals 2 ml. 2 ml by your words is 9 sprays. Atomizer holds 10 ml, so 2 ml x 5 = 10 ml, 9 sprays x 5 = 45 sprays per atomizer like I said earlier in the last reply. The 75 sprays is the yield of the 5ml bottle of npa + 11.667 ml of apc, which is 3 parts npa and 7 parts apc. I came up with the sprays by using the info you provided, so I can\'t tell you if that is exact or not, it all depends on how good the info you provided is.

oscar
11-23-2002, 09:36 PM
Jordi,

Because of the size of the sprays from those atomizers, and the ratio you\'re using, you\'re applying at least FIVE TIMES the recommended dose of NPA every day.

If you\'re averaging .2mL or more of NPA per day, I\'m guessing that your not really well attuned to its smell, because the fragrance of APC fades quickly compared to the scent of NPA, which lingers far longer and smells fairly nasty.

Change your APC / NPA ratio to one that makes more sense for the atomizer you\'re using, like 4:1 or 5:1, and avoid making tiny batches once you\'ve found the right ratio. Every time you mix you are subjecting your products, especially the alcohol based NPA, to evaporation and also leaving residual product in the syringe with every use.

Extract 1 mL of NPA, put it into the atomizer. Extract 4 or 5 mL of APC and put it in. Close your bottles and put them away for a while. Use two sprays MAXIMUM. In situations where you feel you will need to reapply, start out with just one spray and add another several hours later.

My personal rule of thumb is to wear no more than one drop of NPA at any time. Any more than a drop requires a fragrance OD to be adequately covered.

Oscar /ubbthreads/images/icons/smile.gif

**DONOTDELETE**
11-23-2002, 09:47 PM
Thank you so much Oscar. I will try that. Is it better to use a syringe or an eye drop? How about the dropper in the NPA bottle? Does it drop at the same rate as any eye dropper?
Is it normal that a new NPA bottle is just 3/4 full (up to the bottle label)???
Thanks.

Jordi

oscar
11-23-2002, 10:09 PM
JORDI,

No, the NPA bottle should have been nearly full, but you probably should have asked about that before you started using it.

I think the dropper top of the NPA bottle delivers drops that are way too big, as well as being difficult to control. Often an extra drop will slip out.
I use eyedroppers, but since different liquids have different viscosities, the size of drops can vary from product to product even when using identical droppers, so the syringe is a more accurate way to measure.

Oscar /ubbthreads/images/icons/smile.gif

**DONOTDELETE**
11-24-2002, 12:55 AM
I bought a 3-pack of eye droppers two were bent-tip and one was straight-tip I found I got different drop sizes from the two different style of dropper.
More on the subject - I make a very small batch of any mix for testing purposes. If it\'s a 7:3 ratio (JB#1) I use 14 drops to 6 drops and that usually will last for three or more applications. I haven\'t noticed any depriciation in the NPA bottle\'s contents. I also haven\'t noticed any results from JB#1 until the day after application. Take it as you will.

Oceanborn
11-24-2002, 03:07 AM
There was in issue a while back about a batch of NPA shipped which is not full. You could have one of those. A bottle of NPA should be full to the brim when you receive it. Check with Bruce and he\'ll advice you on what to do.

krtel
11-24-2002, 02:13 PM
You can always get a medicine dropper from Walgreens which has measurements on it by mL.

- Krish

**DONOTDELETE**
11-24-2002, 10:11 PM
Thanks everyone for your help. I e mailed Bruce asking him about the NPA bottle content level. :-)
Jordi