Once again, there are technical rules of conduct regarding good faith bargaining, and before one actually negotiates a contract, expert advice should be sought. As a practical matter, research into wages and benefits in the industry and varying contract approaches is important. Further, proper analysis of one's own resources, the cost of various benefits, and the ability to function through a strike is essential.
One fact is crucial to keep in mind. While one must come to the bargaining table in good faith to reach agreement, the law does not require either party to agree to any particular proposal. A union may not hand an agency a standard contract and demand agreement without bargaining. That is bad faith on their part. Furthermore, it could be a serious mistake for a small agency or any agency to sign such a standard contract without analysis of its ability to function under the terms of such a contract. If faced with such a demand, seek help.