I don't know enough from your post to give real specific answers. How many total chicks you have, your weather, your current brooder set-up, or what your outside set-up looks like. I'll try to help.
Many hatcheries will only ship several chicks together, 15 to 25, so they can keep each other warm in the box while being shipped. The more you have, up to a point, the more they can help keep each other warm. Its not a huge issue but it helps to have more.
The main thing with your weather is how cool it gets at night. There is a conservative, very safe rule of thumb to start your chicks in the temperature range of 90 to 95 degrees F the first week and drop that temperature by 5 degrees every week. When the "recommended" temperature matches your night-time lows, they can very safely go outside. I'll give a chart.
1st week - 0 to 7 days old - 90 to 95 degrees
2nd week - 8 to 14 days old - 85 to 90 degrees
3rd week - 15 to 21 days old - 80 to 85 degrees
4th week - 22 to 28 days old - 75 to 80 degrees
5th week - 29 to 35 days old - 70 to 75 days old
So if your night-time low is mid 70's and they are 22 days old, they can go outside. Most chicks are fully feathered by 4 to 5 weeks old so they can pretty much go outside after 5 weeks anyway. Many of us with experience violate this chart but for someone just starting out, these are very safe numbers. For example, this year with the lows in the 70's, I had a broody take her 2 week old chicks to the roosts at night. Two or three did not make it to the roosts the first couple of nights, but slept together on the top of a 2x4 bracing on the side of the coop wall. By this chart, at 2 weeks old, they should have had 80 degree minimums, but they did fine in the 70's. They could not all sleep under her on the roosts anyway.
Will the standards lose it if they have to wait? They could all lose it, not just the standards. It depends on the brooder. The problems are usually space and heat. If the brooder is hot, they can get a bad attitude. I can get kind of grouchy if I'm uncomfortably hot too. Healthwise, chickens handle cool better than hot too, with that down coat. But if you have a brooder where part of it is cooler than the recommended temperatures, they can find their own comfort zone. The other big issue is space. They grow very fast. I hate to give a square foot requirement since there is a big difference if you have three versus thirty, but it sounds like you have several. I've done OK with 1/2 a square foot (72 square inches) per chick until they are about 4 weeks old, but I had thirty, not three. They may have been OK a little longer but they were starting to look pretty crowded.
The other issue is what your outside looks like. Your coop is probably quite a bit bigger than your brooder, so they will love the extra space. I suggest locking them in the coop with no access to the run for at least a week anyway to get them used to sleeping in the coop. That makes your life a lot easier. But if your coop is dry and pretty much draft free where they are sleeping, they can go outside earlier than in a drafty coop that might get wet if it rains. One on the ground is usually warmer than one that is elevated, but in either, if you have bedding they can snuggle dow in that to keep warm if they want to. That is not all that important though. They may sleep in a bunch on the floor, not for warmth but for comfort, or they may start to roost. As long as it is draft-free, it really does not matter that much. But the main thing is dry and draft free.
Hope this helps a bit. Good luck!